User Manual AIMB-252 (910GMLE/915GME)

User Manual
AIMB-252
(910GMLE/915GME)
Intel® 910GMLE µFC-BGA 479
(or 915GME µFC-PGA 478)
Pentium® M / Celeron® M Mini
ITX Main Board
Ver.1.00
Safety Information
Electrical safety

To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.
When adding or removing devices to or from the system, ensure that the power
cables for the devices are unplugged before the signal cables are connected. If
possible, disconnect all power cables from the existing system before you add a
device.
Before connecting or removing signal cables from the motherboard, ensure that
all power cables are unplugged.
Seek professional assistance before using an adapter or extension cord. These
devices could interrupt the grounding circuit.
Make sure that your power supply is set to the correct voltage in your area. If
you are not sure about the voltage of the electrical outlet you are using, contact
your local power company.
If the power supply is broken, do not try to fix it by yourself. Contact a qualified
service technician or your retailer.
Operation safety

Before installing the motherboard and adding devices on it, carefully read all the
manuals that came with the package.
Before using the product, make sure all cables are correctly connected and the
power cables are not damaged. If you detect any damage, contact your dealer
immediately.
To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.
Avoid dust, humidity, and temperature extremes. Do not place the product in
any area where it may become wet.
Place the product on a stable surface.
If you encounter technical problems with the product, contact a qualified service
technician or your retailer.
Caution! The symbol of the crossed out wheeled bin indicates that the product
(electrical and electronic equipment) should not be placed in municipal
waste. Check local regulations for disposal of electronic products.
AIMB-252 User Manual
Part No. 2006025200
Edition 1
Printed in Taiwan
June 2008
ii
Certifications
This device complies with the requirements in part 15 of the FCC rules: Operation is
subject to the following two conditions:
This device may not cause harmful interference,
This device must accept any interference received, including interferencethat
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this device in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his/her own expense. The
user is advised that any equipment changes or modifications not expressly approved
by the party responsible for compliance would void the compliance to FCC regulations and therefore, the user's authority to operate the equipment.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's
instructions.
iii
AIMB-252 User Manual
Technical Support
If a problem arises with your system and no solution can be obtained from the user’s
manual, please contact your place of purchase or local distributor. Alternatively,
please try the following help resources for further guidance. Visit the Advantech website for FAQ, technical guide, BIOS updates, driver updates, and other information:
http://support.advantech.com.tw/Support/default.aspx
Packing List
Before you begin installing your single board, please make sure that the following
materials have been shipped:
1 x AIMB-252 (910GMLE) (or AIMB-252(915GME)) Mini ITX Main board
1 x CD-ROM contains the followings:
– User’s manual (this manual in PDF file)
– Drivers
1 x IDE HDD cable (40-pin)
2 x COM cable
2 x SATA Data cables
2 x SATA Power cables
1 x Startup Manual
1 x CPU cooler
1 x I/O Shield
If any of the above items is damaged or missing, please contact your retailer.
AIMB-252 User Manual
iv
Contents
Chapter
1
Production Introduction......................1
1.1
1.2
Before You Proceed.................................................................................. 2
Motherboard Overview.............................................................................. 2
1.2.1 Placement Direction...................................................................... 2
1.2.2 Screw Holes.................................................................................. 3
Motherboard Layout .................................................................................. 4
Figure 1.1 Motherboard Layout ................................................... 4
Specifications ............................................................................................ 5
Board Diagram .......................................................................................... 7
Ordering Information ................................................................................. 8
Riser Card ................................................................................................. 8
Bracket View ............................................................................................. 8
Accessories............................................................................................... 8
Layout Content List ................................................................................... 9
Table 1.1: Slots............................................................................ 9
Table 1.2: Rear Panel Connector ................................................ 9
Table 1.3: Internal Connector ...................................................... 9
Table 1.4: CMOS1..................................................................... 10
Table 1.5: ATX/AT mode selector(JPSON1) ............................. 10
Table 1.6: COM1 RS-232/422/485 mode selector (JSETCOM1)..
11
Central Processing Unit (CPU) (for AIMB-252(915GME) only)............... 11
1.11.1 Installing the CPU ....................................................................... 12
1.11.2 Installing the CPU Heatsink and Fan .......................................... 14
1.11.3 Uninstalling the CPU Heatsink and Fan...................................... 16
System Memory ...................................................................................... 16
1.12.1 DIMM Sockets Location .............................................................. 16
1.12.2 Memory Configurations............................................................... 17
1.12.3 Installing a DDR2 DIMM ............................................................. 18
1.12.4 Removing a DDR2 DIMM ........................................................... 19
Expansion Slots ...................................................................................... 19
1.13.1 Installing an Expansion Card ...................................................... 19
1.13.2 Configuring an Expansion Card .................................................. 19
1.13.3 Standard Interrupt Assignments ................................................. 20
Table 1.7: Standard Interrupt Assignments ............................... 20
1.13.4 PCI Slots ..................................................................................... 20
Connectors.............................................................................................. 21
1.14.1 Rear Panel Connectors............................................................... 21
Table 1.8: Rear Panel Connectors ............................................ 21
Table 1.9: LEDs......................................................................... 21
1.14.2 CPU Fan Connector (CPUFAN1) ............................................... 22
1.14.3 System Fan Connector (SYSFAN1) ........................................... 23
1.14.4 Serial Port Connector 23 (COM23)............................................. 24
1.14.5 Serial Port Connector 45 (COM45)............................................. 24
1.14.6 Front Headphone Connector (FPAUD1)..................................... 25
1.14.7 Front Panel Connector (JFP1/JFP2/JFP3) ................................. 26
1.14.8 ATX soft power switch (JFP1 / PWR_SW) ................................. 26
1.14.9 Reset (JFP1 / RESET)................................................................ 26
1.14.10HDD LED (JFP2 / HDDLED)....................................................... 26
1.14.11External speaker (JFP2 / SPEAKER) ......................................... 26
1.14.12Power LED and keyboard lock connector (JFP3 / PWR_LED&KEY
LOCK) ......................................................................................... 27
Table 1.10: ATX power supply LED status (No support for AT power) ............................................................................. 27
1.3
1.4
1.5
1.6
1.7
1.8
1.9
1.10
1.11
1.12
1.13
1.14
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AIMB-252 User Manual
1.14.13USB 2.0 Connector (USB56, USB78)......................................... 27
1.14.14ATX Power Connector (EATXPWR1)......................................... 28
1.14.15LCD Inverter Connector (INV1) & LVDS (INV2) ......................... 29
1.14.16LVDS Connector (LVDS1) .......................................................... 31
1.14.17LVDS Connector (LVDS2) .......................................................... 31
1.14.18Digital I/O Connector (GPIO1) .................................................... 32
1.14.19Serial ATA Connector 1 & 2 (SATA1, SATA2) ........................... 32
Chapter
2
BIOS Operation ................................. 33
2.1
2.2
BIOS Introduction.................................................................................... 34
BIOS Setup ............................................................................................. 34
2.2.1 Main Menu .................................................................................. 35
2.2.2 Standard CMOS Features .......................................................... 36
2.2.3 Advanced BIOS Features ........................................................... 37
2.2.4 Advanced Chipset Features ....................................................... 38
2.2.5 Integrated Peripherals ................................................................ 40
2.2.6 Power Management Setup ......................................................... 42
2.2.7 PnP/PCI Configurations.............................................................. 44
2.2.8 PC Health Status ........................................................................ 45
2.2.9 Frequency/voltage Control.......................................................... 46
2.2.10 Load Setup Defaults ................................................................... 46
2.2.11 Set Password.............................................................................. 47
2.2.12 Save & Exit Setup....................................................................... 49
2.2.13 Quit Without Saving .................................................................... 49
3
Chipset Software Install Utility ........ 51
3.1
3.2
3.3
Before you Begin .................................................................................... 52
Introduction ............................................................................................. 52
Windows XP Driver Setup....................................................................... 53
4
VGA Setup ......................................... 55
4.1
4.2
Introduction ............................................................................................. 56
Windows XP Driver Setup....................................................................... 56
5
LAN Configuration ............................ 59
5.1
5.2
5.3
5.4
Introduction ............................................................................................. 60
Features.................................................................................................. 60
Installation............................................................................................... 60
Win XP Driver Setup (Realtek RTL8111C) ............................................. 60
Appendix A
Programming the Watchdog............ 63
A.1
Programming the Watchdog Timer ......................................................... 64
A.1.1 Watchdog timer overview ........................................................... 64
A.1.2 Programming the Watchdog Timer............................................. 64
Table A.1: Watchdog Timer Registers....................................... 66
A.1.3 Example Program ....................................................................... 67
Appendix B
Pin Assignments............................... 71
B.1
IDE Hard Drive Connector (IDE1)........................................................... 72
Chapter
Chapter
Chapter
AIMB-252 User Manual
vi
B.2
B.3
B.4
B.5
B.6
B.7
B.8
B.9
B.10
B.11
B.12
B.13
B.14
B.15
B.16
B.17
B.18
B.19
B.20
B.21
B.22
B.23
B.24
Table B.1: IDE Hard Drive Connector (IDE1) ............................ 72
Parallel Port Connector (LPT1) ............................................................... 73
Table B.2: Parallel Port Connector (LPT1) ................................ 73
USB Connector (USB56,USB78) ............................................................ 73
Table B.3: USB5/USB6 Connector (USB56) ............................. 73
VGA Connector (VGA1) .......................................................................... 74
Table B.4: VGA Connector (VGA1) ........................................... 74
RS-232 Serial Port (COM1) .................................................................... 74
Table B.5: Rs-232 Serial Port (COM1) ...................................... 74
RS-232 Serial Port (COM2 ~ COM5) ...................................................... 75
Table B.6: RS-232 Serial Port (COM23).................................... 75
Table B.7: RS-232 Serial Port (COM45).................................... 75
PS/2 Keyboard/ Mouse Connnector (KBMS1) ........................................ 76
Table B.8: PS/2 Keyboard/ Mouse Connector (KBMS1) ........... 76
CPU Fan Power Connector (CPUFAN1) ................................................ 76
Table B.9: CPU Fan Power Connector (CPUFAN1).................. 76
Power LED & Keyboard Lock Connector (JFP3) .................................... 77
Table B.10: Power LED and Keylock Connector (JFP3) ............ 77
External Speaker Connector (JFP2/ SPEAKER) .................................... 77
Table B.11:External Speaker Connector (JFP2/SPEAKER)....... 77
Reset Connector (JFP1/ RESET) ........................................................... 78
Table B.12:Reset Connector (JFP1/ RESET)............................. 78
HDD LED Connector (JFP2/ HDDLED) .................................................. 78
Table B.13:HDD LED Connector (JFP2/ HDDLED).................... 78
ATX Soft Power Switch (JFP1/ PWR_SW) ............................................. 78
Table B.14:ATX Soft Power Switch (JFP1/ PWR_SW) .............. 78
AC-97 Audio Interface (FPAUD1) ........................................................... 79
Table B.15:AC-97 Audio Interface (FPAUD1)............................. 79
SM Bus Connector (JFP2) ...................................................................... 79
Table B.16:SM Bus Connector (JFP2)........................................ 79
GPIO Pin Header (GPIO1)..................................................................... 80
Table B.17:GPIO Pin Header (GPIO1) ....................................... 80
LVDS Connector (LVDS1/LVDS2) .......................................................... 81
Table B.18:LVDS Connector (LVDS1/2)..................................... 81
LVDS Power Jumper (JLV1, JLV2)......................................................... 82
Table B.19:LVDS Power Jumper (JLV1, JLV2) .......................... 82
LVDS Invert (INV1, INV2) ....................................................................... 82
Table B.20:LVDS Invert (INV1, INV2)......................................... 82
System I/O Ports ..................................................................................... 83
Table B.21:System I/O Ports ...................................................... 83
DMA Channel Assignments .................................................................... 83
Table B.22:DMA Channel Assignments...................................... 83
Interrupt Assignments ............................................................................. 84
Table B.23:Interrupt Assignments............................................... 84
1st MB Memory Map ............................................................................... 84
Table B.24:1st MB Memory Map ................................................ 84
PCI Bus Map ........................................................................................... 84
Table B.25:PCI Bus Map ............................................................ 84
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AIMB-252 User Manual
AIMB-252 User Manual
viii
Chapter
1
1
Production
Introduction
This chapter describes the main
board features and the new technologies it supports.
1.1 Before You Proceed
Take note of the following precautions before you install motherboard components or
change any motherboard settings.
Caution!

Unplug the power cord from the wall socket before touching any
component.
Use a grounded wrist strap or touch a safely grounded object or a
metal object, such as the power supply case, before handling components to avoid damaging them due to static electricity
Hold components by the edges to avoid touching the ICs on them.
Whenever you uninstall any component, place it on a grounded
antistatic pad or in the bag that came with the component.
Before you install or remove any component, ensure that the ATX
power supply is switched off or the power cord is detached from the
power supply. Failure to do so may cause severe damage to the
motherboard, peripherals, and/or components.
1.2 Motherboard Overview
Before you install the motherboard, study the configuration of your chassis to ensure
that the motherboard fits into it. Refer to the chassis documentation before installing
the motherboard.
Warning! Make sure to unplug the power cord before installing or removing the
motherboard. Failure to do so can cause you physical injury and damage motherboard components.
1.2.1 Placement Direction
When installing the motherboard, make sure that you place it into the chassis in the
correct orientation. The edge with external ports goes to the rear part of the chassis
as indicated in the image below.
AIMB-252 User Manual
2
Place four (4) screws into the holes indicated by circles to secure the motherboard to
the chassis.
Caution! Do not over tighten the screws! Doing so can damage the motherboard.
3
AIMB-252 User Manual
Production Introduction
Place this side towards the rear
of the chassis.
Chapter 1
1.2.2 Screw Holes
1.3 Motherboard Layout
COM1
LAN1_USB12
Audio1
LAN2_USB34
VGA1
LPT1
JLV1
FPAUD1
INV2
JLV2
KBMS1
SYSFAN1
JSETCOM1
LVDS2
USB78
INV1
DIMMA1
DIMMB1
USB56
CMOS1
LVDS1
BIOS1
COM45
PCI1
SATA1
SATA2
SMBUS1
GPIO1
JFP3
JFP2
JFP1
JPSON1
COM23
SYSFAN2
IDE1
CPUFAN1
EATXPWR1
Figure 1.1 Motherboard Layout
AIMB-252 User Manual
4
Processor
Ssytem
Intel Pentium M Intel Celeron M Celeron M Celeron M
Max. Speed
2.0 GHz
1.5 GHz
1 GHz
600 MHz
Front Side Bus
400/533 MHz
400 MHz
400 MHz
400 Mhz
L2 Cache
2 MB
1 MB
0 MB
0 MB
Chipset
Intel 910GMLE*/915GME + ICH6M
BIOS
Award 4 Mbit FWH
PCI
32-bit/33 MHz, 1 slot
Expansion Slot Mini-PCI
Memory
Graphics
Ethernet
SATA
EIDE
SSD
Rear I/O
-
PCIe
-
Technology
Dual Channel DDR2 400/533 SDRAM
Max. Capacity
2 GB
Socket
240-pin DIMM x 2
Controller
Intel 910GMLE/915GME GMCH integrated Graphics
Media Accelerator 900
VRAM
Intel DVMT 3.0 supports up to 128 MB video memory
1st LVDS
Single channel 18-bit/Dual channel 36-bit LVDS
2nd LVDS
Single channel 18/24-bit/Dual channel 36/48-bit LVDS, via
Chrontel 7308B SDVO transmitter
DVI
None
Dual Display
VGA + LVDS, LVDS + LVDS
Interface
10/100/1000Base -T
Controller
GbE LAN1: Realtek RTL8111C; GbE LAN2: Realtek
RTL8111C
Connector
RJ-45 x 2
Max Data
Transfer Rate
150 MB/s
Channel
2
Mode
EIDE (Ultra DMA 100)
Channel
1
Compact Flash
Supports compact flash type I/II
VGA
1
Ethernet
1 (for VG version); 2 (for G2 version)
USB
4 (USB 2.0 compliant)
Audio
MIC-In, Line-Out, Line-in
Serial
1 (RS-232/422/485)
Parallel
1
PS/2
2 (1 x keyboard and 1 x mouse)
5
AIMB-252 User Manual
Production Introduction
CPU (130/90
nm, µFC-PGA
478)
Chapter 1
1.4 Specifications
LVDS & Inverter 2
Internal
Connector
Watchdog
Timer
USB
4 (USB 2.0 compliant)
Serial
4 (RS-232)
IDE
1
SATA
2
Compact Falsh
1
IrDA
-
DIO
16-bit GPIO
Output
Interrupt, system reset
Interval
Programmable 1 ~ 255 sec/ min
Typical
Intel 915GME and Pentium M 760 2.0 GHz FSB 533 MHz,
2 GB DDR2 SDRAM
Power
Requirement
Environment
+5 V
+3.3 V
+12 V
+5 VSB
2.61 A
0.71 A
1.93 A
0.59 A
Operating
Temperature
Physical
Dimensions
Characteristics
0 ~ 60° C (32 ~ 140° F)
170 mm x 170 mm
(6.69" x 6.69")
* Intel 910GMLE only supports FSB 400 processor and DDR2 400 SDRAM
AIMB-252 User Manual
6
Chapter 1
1.5 Board Diagram
VGA
1st LVDS
18-bit LVDS
2nd LVDS
24-bit LVDS via SDVO
1 ATA 100 Port or
CF Type II
DMA 33/66/100
2 SATA ports
150 MB/s
USB 2.0/1.1
Realtek ALC655
AC-97 Link
DDR2 400/533
Channel B
DDR2 400/533
2 GB/s bandwidth
Direct Media Interface
8 USB Ports
Channel A
Intel 910GMLE/
915GME GMCH
ICH6M
PCIe x1
GbE LAN1:
RTL 8111C
PCIe x1
GbE LAN2:
RTL 8111C
32-bit/33MHz PCI Bus
PCI
LPC
FWH
BIOS
Super IO Winbond
W83627DHG-A
Fintek
F81216D
4 RS232
7
AIMB-252 User Manual
Production Introduction
CRT
MHz FSB
400/533
Intel Socket 478
Pentium M/Celeron M
Processor
1.6 Ordering Information
Part Number
CPU
Chipset
DDR2
GbE
COM
LVDS
AIMB-252VG-M0A1E
Celeron M 600
910GMLE
400
1
5
Single
AIMB-252G2-00A1E
socket type
915GME
400/533
2
5
Single
AIMB-252G2-M0A1E
Celeron M 600
910GMLE
400
2
5
Dual
AIMB-252VG-S0A1E
Celeron M 1Ghz
910GMLE
400
1
5
Single
1.7 Riser Card
Part Number
Description
AIMB-RP30P-03A1E
2U riser card with 3 PCI slot expansion
1.8 Bracket View
AIMB-252VG-M0A1E
AIMB-252G2-00A1E
AIMB-252G2-M0A1E
1.9 Accessories
Part Number
Description
1700003195
USB cable with four ports, 17.5 cm
1700002204
USB cable with four ports, 27 cm
1700002314
USB cable with four ports, 30.5 cm
AIMB-252 User Manual
8
Chapter 1
1.10 Layout Content List
Table 1.1: Slots
Label
Function
Note
DIMMA1
240-pin DDR2 DIMM slot
DIMMB1
240-pin DDR2 DIMM slot
PCI1
PCI slot
Label
Function
Note
KBMS1
PS/2 keyboard and mouse
6-pin Mini-Din
COM1
Serial port connector x 1
D-sub 9-pin, male
LPT1
Parallel port, Parallel port x 1
25-pin port connector
LAN1_USB12
RJ-45 Ethernet connector x 1
USB connector x 2
LAN2_USB34
RJ-45 Ethernet connector x 1
USB connector x 2
AUDIO1
Line-in port, Line-out port, Microphone 6-Channel Audio I/O (3 jacks)
port
Table 1.3: Internal Connector
Label
Function
Note
CPUFAN1
CPU fan connector
3 x 1 wafer,
pitch 2.54 mm
SYSFAN1
System fan connector
3 x 1 wafer,
pitch 2.54 mm
SYSFAN2
System fan connector
3 x 1 wafer,
pitch 2.54 mm
COM23
Serial port connector 2,3
5 x 2 header,
pitch 2.0 mm
COM45
Serial port connector 4,5
5 x 2 header,
pitch 2.0 mm
FPAUD1
Front headphone connector
5 x 2 header,
pitch 2.54 mm
USB56
USB 2.0 connector
5 x 2 header,
pitch 2.54 mm
USB78
USB 2.0 connector
5 x 2 header,
pitch 2.54 mm
IDE1
Primary IDE connector
20 x 2 header,
pitch 2.54 mm
ATX
ATX power connector
10 x 2 header
INV1
LCD Inverter connector
5 x 1 header,
pitch 2.00 mm
INV2
LCD Inverter connector
5 x 1 header,
pitch 2.00 mm
LVDS1
LVDS connector
HIROSE DF13S-40DP-1.25V
LVDS2
LVDS connector
HIROSE DF13S-40DP-1.25V
9
AIMB-252 User Manual
Production Introduction
Table 1.2: Rear Panel Connector
Table 1.3: Internal Connector
SATA1
Serial ATA connectors
7-pin header
Label
Function
Note
SATA2
Serial ATA connectors
7-pin header
JFP3
Keyboard lock and power LED
Suspend: Fast flash (ATX/AT)
System On: on (ATX/AT)
System Off: off (AT)
System Off: slow flash (ATX)
JFP2
External speaker /
SATA HDD LED connector /
SM Bus connector
JFP1
Power switch /
reset connector
Table 1.4: CMOS1
COMS1
*Keep COMS data
Clear CMOS data
Clear CMOS
1-2 closed
2-3 closed
*Default setting
Table 1.5: ATX/AT mode selector(JPSON1)
JPSON1
AT Mode
*ATX Mode
AT(1-2) / ATX(2-3)
1-2 closed
2-3 closed
*Default setting
AIMB-252 User Manual
10
JSETCOM1
COM1 RS-232/422/485 jumper setting
The motherboard AIMB-252 (915GME) comes with a surface mount 478-pin Zero
Insertion Force (ZIF) socket designed for the Intel® Pentium® M / Celeron® M processor (Supports mPGA478M, Micro-FCPGA).
Take one of the marked corner (with gold
triangle) on the CPU. This mark should
match a specific corner on the socket to
ensure correct installation.
Note!

Gold Mark
Make sure the AC power is off before you install the CPU.
If installing a dual-core CPU, connect the CPU fan cable to the
CPUFAN1 connector to ensure system stability.
11
AIMB-252 User Manual
Production Introduction
1.11 Central Processing Unit (CPU) (for AIMB252(915GME) only)
Chapter 1
Table 1.6: COM1 RS-232/422/485 mode selector (JSETCOM1)
Caution!

Intel® socket 478 Pentium M/ Celeron M CPU with 90nm process
package should come with installation instructions for the CPU,
heatsink, and the retention mechanism. If the instructions in this
section do not match the CPU documentation, follow the latter.
Upon purchase of the motherboard, make sure that the PnP cap is
on the socket and the socket contacts are not bent. Contact your
retailer immediately if the PnP cap is missing, or if you see any
damage to the PnP cap/socket contacts/motherboard components.
Your place of purchase or local distributor will shoulder the cost of
repair only if the damage is shipment/transit-related.
Keep the cap after installing the motherboard. Your place of purchase or local distributor will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap
on the socket.
The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/ incorrect removal of the PnP cap.
1.11.1 Installing the CPU
1.
Locate the CPU socket on
the motherboard.
Note!
Before installing the CPU, make sure that the socket box is facing towards you.
AIMB-252 User Manual
12
3.
Position the CPU above the
socket and the gold triangular
mark on the CPU must align with
pin 1 of the CPU socket.
Carefully insert the CPU into the
socket until it fits in place ‘Gold
mark’.
Turn the screw to the lock
position.
4.
5.
Production Introduction
The processor socket comes with
a screw to secure the processor,
please unlock the screw first.
Chapter 1
2.
Warning! The CPU fits in only one correct orientation. DO NOT force the CPU into
the socket to prevent bending the connectors on the socket and damaging the CPU.
13
AIMB-252 User Manual
Warning! After installation, make sure to plug-in the ATX power cable to the motherboard.
1.11.2 Installing the CPU Heatsink and Fan
The Intel® Pentium® M / Celeron® M processor (supports mPGA478M, MicroFCPGA) requires a specially designed heatsink and fan assembly to ensure optimum
thermal condition and performance.
Caution! If you purchased a separate CPU heatsink and fan assembly, make
sure that you have properly applied Thermal Interface Material to the
CPU heatsink or CPU before you install the heatsink and fan assembly.
Motherboard Hole
1.
Place the heatsink on top of the
installed CPU, making sure that
the four screws match the holes
on the motherboard.
Screw
AIMB-252 User Manual
14
2.
Orient the heatsink and fan assembly such that the CPU fan cable is
closest to the CPU fan connector.
Caution!

Installing DDR2 DIMM other than the recommended configurations
may cause memory sizing error or system boot failure. Use any of
the recommended configurations.
Always install DIMMs with the same CAS latency. For optimum
compatibility, it is recommended that you obtain memory modules
from the same vendor.
Due to chipset resource allocation, the system may detect less
than 1 GB system memory when you installed one 1 GB DDR2
memory modules.
This motherboard does not support memory modules made up of
128 MB chips or double-sided x16 memory modules.
Make sure that the memory frequency matches the CPU FSB
(Front Side Bus). Refer to the Memory frequency/CPU FSB
synchronization table.
17
AIMB-252 User Manual
Production Introduction
1.12.2 Memory Configurations
Note!

Recommended memory configuration.
Sockets
Mode
DIMM1
Single-channel
(1) Install
-
(2) -
Install

CPU FSB/Memory frequency synchronization.
CPU FSB
DDR 2 DIMM Type
Memory Frequency
533 MHz
DDR2 533
533 MHz
DDR2 400
400 MHz
DDR2 533
400 MHz
DDR2 400
400 MHz
400 MHz
1.12.3 Installing a DDR2 DIMM
Caution! Make sure to unplug the power supply before adding or removing
DIMMs or other system components. Failure to do so may cause severe
damage to both the motherboard and the components.
1.
2.
3.
Unlock a DIMM socket by pressing the retaining clips outward
Align a DIMM on the socket such
that the notch on the DIMM
matches the break on the socket.
Firmly insert the DIMM into the
socket until the retaining clips
snap back in place and the DIMM.
Caution!

AIMB-252 User Manual
A DDR2 DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into a socket to avoid damaging the
DIMM.
The DDR2 DIMM sockets do not support DDR DIMMs. DO NOT
install DDR DIMMs to the DDR2 DIMM socket.
18
1.
2.
Chapter 1
1.12.4 Removing a DDR2 DIMM
Simultaneously press the retaining clips outward to unlock the
DIMM.
Remove the DIMM from the
socket.
1.13 Expansion Slots
In the future, you may need to install expansion cards. The following subsections
describe the slots and the expansion cards that they support.
Warning! Make sure to unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage
motherboard components.
1.13.1 Installing an Expansion Card
1.
2.
3.
4.
5.
6.
Before installing the expansion card, read the documentation that came with it
and make the necessary hardware settings for the card.
Remove the system unit cover (if your motherboard is already installed in a
chassis).
Remove the bracket opposite the slot that you intend to use. Keep the screw for
later use.
Align the card connector with the slot and press firmly until the card is completely seated on the slot.
Secure the card to the chassis with the screw you removed earlier.
Replace the system cover.
1.13.2 Configuring an Expansion Card
After installing the expansion card, configure it by adjusting the software settings.
1. Turn on the system and change the necessary BIOS settings if any.
2. Assign an IRQ to the card if needed. Refer to the tables on the next page.
3. Install the software drivers for the expansion card.
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AIMB-252 User Manual
Production Introduction
Caution! Support the DIMM lightly with your fingers when pressing the ejector
tabs. The DIMM might get damaged when it flips out with extra force.
1.13.3 Standard Interrupt Assignments
Table 1.7: Standard Interrupt Assignments
IRQ
Priority
Standard Function
0
1
System Timer
1
2
Keyboard Controller
2
-
Redirect to IRQ#9
3
11
COM5
5
13
IRQ holder for PCI streering*
6
14
Floppy Disk Controller
8
3
COM2
9
4
COM1
10
5
COM3
11
6
IRQ holder for PCI streeing*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
15
10
COM4
*There IRQs are usually available for ISA or PCI device.
1.13.4 PCI Slots
AIMB-252 has one PCI slots. The PCI slots
support cards such as a LAN card, SCSI
card, USB card, and other cards that comply with PCI specifications. The figure
shows a LAN card installed on a PCI slot.
AIMB-252 User Manual
20
1.14.1 Rear Panel Connectors
1
2
3
7
4,5
6
No
Label
Function
Description
1
KBMS1
PS/2 mouse connector
The standard PS/2 mouse DIN connector is for a PS/2 mouse.
2
COM1
Serial port connector x 1
D-sub 9-pin, male
3
Parallel port
Parallel port
4,5
LAN1_USB12/ LAN (RJ-45) connector
LAN2_USB34
This port allows Gigabit connection to a
Local Area Network (LAN) through a
network hub. Refer to the table below
for the LAN port LED indications. The
optional 10/100 Mbps LAN controller
allows 10/100 Mbps connection to a
Local Area Network (LAN) through a
network hub.
6
Audio1
3 ports audio connector
Mic-in, Line-in, Line-out
7
VGA
VGA port
Table 1.9: LEDs
ACT / LINK LED
Status
SPEED LED
Description
Status
Description
OFF
No link
OFF
10 Mbps connection
Green
Linked
ORANGE
100 Mbps connection
Blinking
Data activity
GREEN
1 Gbps connection
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AIMB-252 User Manual
Production Introduction
Table 1.8: Rear Panel Connectors
Chapter 1
1.14 Connectors
1.14.2 CPU Fan Connector (CPUFAN1)
Caution!

AIMB-252 User Manual
Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard
components, and hardware monitoring errors can occur if you fail
to plug this connector.
These are not jumpers! DO NOT place jumper caps on the fan
connectors.
22

Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard
components, and hardware monitoring errors can occur if you fail
to plug this connector.
These are not jumpers! DO NOT place jumper caps on the fan connectors.
23
AIMB-252 User Manual
Production Introduction
Caution!
Chapter 1
1.14.3 System Fan Connector (SYSFAN1)
1.14.4 Serial Port Connector 23 (COM23)
1
DDCD2_N
RRXD2
DDSR2_N
TTXD2
CCTS2_N
RRTS2_N
DDTR2_N
RRI2_M
GND
DDCD3_N
GND
DDSR3_N
RRXD3
RRTS3_N
TTXD3
CCTS3_N
RRI3_N
DDTR3_N
GND
GND
1.14.5 Serial Port Connector 45 (COM45)
1
DDCD4_N
RRXD4
DDSR4_N
TTXD4
CCTS4_N
DDTR4_N
GND
DDCD5_N
RRXD5
RRTS5_N
TTXD5
CCTS5_N
GND
24
RRI4_M
GND
DDSR5_N
DDTR5_N
AIMB-252 User Manual
RRTS4_N
RRI5_N
GND
This connector is for a chassis-mounted front panel audio I/O module that supports
either HD Audio or legacy AC’97 (optional) audio standard. Connect one end of the
front panel audio I/O module cable to this connector.
Chapter 1
1.14.6 Front Headphone Connector (FPAUD1)
Production Introduction
Note!
For motherboards with the optional HD Audio feature, we recommend
that you connect a high-definition front panel audio module to this connector to avail of the motherboard’s high definition audio capability.
25
AIMB-252 User Manual
1.14.7 Front Panel Connector (JFP1/JFP2/JFP3)
PWR_SW
RESET
HDOLED
JFP1
JFP2
SPEAKER
PWR_LED&KEY LOCK
JFP3
There are several external switches to monitor and control the AIMB-252.
1.14.8 ATX soft power switch (JFP1 / PWR_SW)
If your computer case is equipped with an ATX power supply, you should connect the
power on/off button on your computer case to (JFP1/PWR_SW). This connection
enables you to turn your computer on and off.
1.14.9 Reset (JFP1 / RESET)
Many computer cases offer the convenience of a reset button. Connect the wire for
the reset button.
1.14.10HDD LED (JFP2 / HDDLED)
You can connect an LED to connector (JFP2/HDDLED) to indicate when the HDD is
active.
1.14.11External speaker (JFP2 / SPEAKER)
(JFP2 / SPEAKER) is a 4-pin connector for an external speaker. If there is no external speaker, the AIMB-252 provides an onboard buzzer as an alternative. To enable
the buzzer, set pins 3-4 as closed.
AIMB-252 User Manual
26
Table 1.10: ATX power supply LED status (No support for AT power)
Power Mode
LED (ATX Power Mode) LED (AT Power Mode) LED (AT Power Mode)
(On/Off by tentative
(On/Off by switching (On/Off by front panel
button)
power supply)
switch)
PSON1
2-3 pin closed
(On Back plane)
Jumper Setting
1-2 pin closed
Connect 1-2 pin cable
with switch
System On
On
On
On
System Status
Fast flashes
Fast flashes
Fast flashes
System Off
Slow flashes
Off
Off
1.14.13USB 2.0 Connector (USB56, USB78)
These connectors are for USB 2.0 ports. Connect the USB/GAME module cable to
any of these connectors, then install the module to a slot opening at the back of the
system chassis. These USB connectors comply with USB 2.0 specification that supports up to 480 Mbps connection speed.
USB56
USB78
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AIMB-252 User Manual
Production Introduction
(JFP3 / PWR_LED&KEY LOCK) is a 5-pin connector for the power on LED and Key
Lock function. Refer to Appendix B for detailed information on the pin assignments.
The Power LED cable should be connected to pin 1-3. The key lock button cable
should be connected to pin 4-5.
There are 3 modes for the power supply connection. The first is “ATX power mode”,
system is on/off by a tentative power button. The second is “AT Power Mode”, system
is on/off by the switch of the Power supply. The third is another “AT Power Mode”
which is using the front panel power switch. The power LED status is indicated as following table:
Chapter 1
1.14.12Power LED and keyboard lock connector (JFP3 /
PWR_LED&KEY LOCK)
Caution! Never connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!
Note!
The USB module is purchased separately.
1.14.14ATX Power Connector (EATXPWR1)
This connector is for an ATX Micro-Fit power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
Important notes on the Motherboard Power Requirements
Note!

AIMB-252 User Manual
Make sure that your ATX 12 V power supply can provide 6 A on the
+12 V lead and at least 1A on the +5-volt standby lead (+5 VSB).
The minimum recommended wattage is 180 W for a fully configured system. The system can become unstable and might experience difficulty powering up if the power supply is inadequate.
You must install a PSU with a higher power rating if you intend to
install additional devices.
28

Production Introduction
Note!
Chapter 1
1.14.15LCD Inverter Connector (INV1) & LVDS (INV2)
Signal Description
Signal
Signal Description
VR
Vadj=0.75 V
(Recommended: 4.7K Ω , > 1/16 W)
ENBKL
LCD backlight ON/OFF control signal
29
AIMB-252 User Manual
Note!

Signal Description
Signal
Signal Description
VR
Vadj=0.75 V ~ 4.25 V
(Recommended: 4.7K Ω , > 1/16 W)
ENBKL
AIMB-252 User Manual
LCD backlight ON/OFF control signal
30
1
VDDSAFE_2
GND_7
VDDSAFE_4
ED0ED0+
GND_8
ED1ED1+
GND_9
ED2ED2+
GND_10
ECKECK+
GND_11
DDC_DAT
GND_12
NC
NC
VCON
1.14.17LVDS Connector (LVDS2)
1
VDDSAFE_1
GND_1
VDDSAFE_3
OD0OD0+
GND_2
OD1OD1+
GND_3
OD2OD2+
GND_4
OCKOCK+
GND_5
DDC_CLK
GND_6
OD3OD3+
HPLG
31
VDDSAFE_2
GND_7
VDDSAFE_4
ED0ED0+
GND_8
ED1ED1+
GND_9
ED2ED2+
GND_10
ECKECK+
GND_11
DDC_DAT
GND_12
ED3ED3+
VCON
AIMB-252 User Manual
Production Introduction
VDDSAFE_1
GND_1
VDDSAFE_3
OD0OD0+
GND_2
OD1OD1+
GND_3
OD2OD2+
GND_4
OCKOCK+
GND_5
DDC_CLK
GND_6
NC
NC
HPLG
Chapter 1
1.14.16LVDS Connector (LVDS1)
1.14.18Digital I/O Connector (GPIO1)
1.14.19Serial ATA Connector 1 & 2 (SATA1, SATA2)
SATA1
SATA2
Note!

AIMB-252 User Manual
Install the Windows® 2000 Service Pack 4 or the Windows® XP
Service Pack1 before using Serial ATA.
When using the connectors in Standard IDE mode, connect the primary (boot) hard disk drive to the SATA1 connector.
32
Chapter
2
BIOS Operation
2
2.1 BIOS Introduction
Advantech provide full-featured AwardBIOS 6.0 and delivers the superior performance, compatibility and functionality that manufactures of Industry PC and Embedded boards, it’s many options and extensions let you customize your products to a
wide range of designs and target markets.
The modular, adaptable AwardBIOS 6.0 supports the broadest range of third-party
peripherals and all popular chipsets, plus Intel, AMD, nVidia, VIA, and compatible
CPUs from 386 through Pentium and AMD Geode, K7 and K8 (including multiple processor platforms), and VIA Eden C3 and C7 CPU.
You can use Advantech’s utilities to select and install features to suit your designs for
customers need.
2.2 BIOS Setup
The AIMB-252 Series system has build-in AwardBIOS with a CMOS SETUP utility
which allows user to configure required settings or to activate certain system features.
The CMOS SETUP saves the configuration in the CMOS RAM of the motherboard.
When the power is turned off, the battery on the board supplies the necessary power
to the CMOS RAM.
When the power is turned on, press the <Del> button during the BIOS POST (PowerOn Self Test) will take you to the CMOS SETUP screen.
CONTROL KEYS
< ↑ >< ↓ >< ← >< → >
Move to select item
<Enter>
Select Item
<Esc>
Main Menu - Quit and not save changes into CMOS
Sub Menu - Exit current page and return to Main Menu
<Page Up/+>
Increase the numeric value or make changes
<Page Down/->
Decrease the numeric value or make changes
<F1>
General help, for Setup Sub Menu
<F2>
Item Help
<F5>
Load Previous Values
<F7>
Load Optimized Default
<F10>
Save all CMOS changes
AIMB-252 User Manual
34
Press <Del> to enter AwardBIOS CMOS Setup Utility, the Main Menu will appear on
the screen. Use arrow keys to select among the items and press <Enter> to accept or
enter the sub-menu.
Chapter 2
2.2.1 Main Menu
BIOS Operation

Standard CMOS Features
This setup page includes all the items in standard compatible BIOS.
Advanced BIOS Features
This setup page includes all the items of Award BIOS enhanced features.
Advanced Chipset Features
This setup page includes all the items of Chipset configuration features.
Integrated Peripherals
This setup page includes all onboard peripheral devices.
Power Management Setup
This setup page includes all the items of Power Management features.
PnP/PCI Configurations
This setup page includes PnP OS and PCI device configuration.
PC Health Status
This setup page includes the system auto detect CPU and system temperature,
voltage, fan speed.
Frequency/Voltage Control
This setup page includes CPU host clock control, frequency ratio and voltage.
Load Optimized Defaults
This setup page includes Load system optimized value, and the system would
be in best performance configuration.
Set Password
Establish, change or disable password.
Save & Exit Setup
Save CMOS value settings to CMOS and exit BIOS setup.
Exit Without Saving
Abandon all CMOS value changes and exit BIOS setup.
35
AIMB-252 User Manual
2.2.2 Standard CMOS Features

Date
The date format is <week>, <month>, <day>, <year>.
Week
From Sun to Sat, determined and display by BIOS only
Month
From Jan to Dec.
Day
From 1 to 31
Year
From 1999 through 2098
Time
The times format in <hour> <minute> <second>, base on the 24-hour time
IDE Channel 0/1, Master/Slave
IDE HDD Auto-Detection Press "Enter" for automatic device detection.
Halt on
The item determines whether the computer will stop if an error is detected during power up.
No Errors
The system boot will not stop for any error
All Errors
Whenever the BIOS detects a non-fatal error the system will be
stopped.
All, But Keyboard
The system boot will not stop for a keyboard error; it will stop for
all other errors. (Default value)
All, But Diskette
The system boot will not stop for a disk error; it will stop for all
other errors.
All, But Disk/Key
The system boot will not stop for a keyboard or disk error; it will
stop for al other errors.
Base Memory
The POST of the BIOS will determine the amount of base (or conventional)
memory installed in the system.
Extended Memory
The POST of the BIOS will determine the amount of extended memory (above
1MB in CPU’s memory address map) installed in the system.
Total Memory
This item displays the total system memory size.
AIMB-252 User Manual
36

CPU Feature
This item allows user to adjust CPU features, CPU ratio, VID and Thermal and
special feature like XD flag.
Hard Disk Boot Priority
This item allows user to select boot sequence for system device HDD, SCSI,
RAID.
Virus Warning [Disabled]
Enables or disables the virus warning.
CPU L1 & L2 Cache [Enabled]
This item allows user to enable CPU L1 and L2 cache.
Quick Power On Self Test [Enabled]
This field speeds up the Power-On Self Test (POST) routine by skipping retesting a second, third and forth time. Setup setting default is enabled.
First / Second / Third / Other Boot Drive
Hard Disk
Select boot device priority by Hard Disk.
CDROM
Select boot device priority by CDROM.
USB-FDD
Select boot device priority by USB-FDD.
USB-ZIP
Select boot device priority by USB-ZIP.
USB-CDROM
Select boot device priority by USB-CDROM.
LAN
Select boot device priority by LAN.
Disabled
Disable this boot function.
Swap Floppy Drive[Disabled]
This item enables users to swap floppy “A°” and “B” identified without change
hardware cable connection.
Boot Up Floppy Seek [Disabled]
When enabled, the BIOS will seek the floppy “A” drive one time
Boot Up NumLock Status [Enabled]
This item enables users to activate the Number Lock function upon system boot
Gate A20 Option [Fast]
This item enables users to switch A20 control by port 92 or not.
37
AIMB-252 User Manual
BIOS Operation

Chapter 2
2.2.3 Advanced BIOS Features

Typematic Rate Setting
This item enables users to set the two typematic controls items.
This field controls the speed at
– Typematic Rate (Chars/Sec)
This item controls the speed at system registers repeated keystrokes.
Eight settings are 6, 8, 10, 12, 15, 20, 24 and 30.
– Typematic Delay (Msec)
This item sets the time interval for displaying the first and second characters.
Four delay rate options are 250, 500, 750 and 1000.
Security Option [Setup]
System
System can not boot and can not access to Setup page if the correct password is not entered at the prompt.
Setup
System will boot, but access to Setup if the correct password is not
entered at the prompt. (Default value)
APIC Mode [Enabled]
This item allows user to enabled of disabled “Advanced Programmable Interrupt
Controller”. APIC is implemented in the motherboard and must be supported by
the operating system, and it extends the number of IRQ's available.
2.2.4 Advanced Chipset Features
Note!

This “Advanced Chipset Features” option controls the configuration of
the board?Os chipset, this page is developed by Chipset independent,
for control chipset register setting and fine tune system performance. It
is strongly recommended only technical users make changes to the
default settings.
DRAM Timing Selectable [By SPD]
This item enables users to set the optimal timings for items 2 through 5, system
default setting of “By SPD” to follow the SPD information and ensure the system
running in stable and optimal performance.
CAS Latency Time [Auto]
This item enables users to set the timing delay in clock cycles before SDRAM
start a read command after receiving it.
AIMB-252 User Manual
38

39
AIMB-252 User Manual
BIOS Operation

DRAM RAS# to CAS# Delay [Auto]
This item enables users to set the timing of the transition from RAS (row
address strobe) to CAS (column address strobe) as both rows and column are
separately addressed shortly after DRAM is refreshed.
DRAM RAS# Precharge [Auto]
This item enables users to set the DRAM RAS# precharge timing, system
default is setting to “Auto” to reference the data from SPD ROM.
Prechage delay (tRAS) [Auto]
This item allows user to adjust memory precharge time.
System Memory Frequency [Auto]
This item allows user to adjust memory frequency to improvement performance.
SLP_S4# Assertion Wideth {1 to 5 sec}
System BIOS Cacheable [Enabled]
This item allows the system BIOS to be cached to allow faster execution and
better performance.
Video BIOS Cacheable [Disabled]
This item allows the video BIOS to be cached to allow faster execution and better performance.
Memory Hole At 15 M-16 M [Disabled]
This item reserves 15 MB-16 MB memory address space to ISA expansion
cards that specifically require the setting. Memory from 1 5MB-16 MB will be
unavailable to the system because of the expansion cards can only access
memory at this area.
PCI Express Root Port Function [Press Enter]
This item allows the user to adjust PCIE port on,off or auto.
VGA setting
PEG/Onchip VGA Control
Use this field to select PEG or Onchip VGA. The default is AUTO.
On-Chip Frame Buffer Size [8 MB]
This item allows the user to adjust on-chip graphics of memory buffer.
DVMT Mode [DVMT]
This item allows the user to adjust Intel's Dynamic Video Memory Technology
(DVMT).Bios provide three option to choose (DVMT, FIXED and Both).
DVMT/FIXED Memory Size [128 MB]
This item allows the user to adjust DVMT/FIXED graphics memory size.
Boot Display [Auto]
This item allows the user to decide that display mode.
LVDS Panel Type [1024 * 768]
This item allows the user to adjust panel resolution.
Chapter 2

2.2.5 Integrated Peripherals
Note!

This “Integrated Peripherals” option controls the configuration of the
board?Os chipset, includes IDE, ATA, SATA, USB, AC97, MC97 and
Super IO and Sensor devices, this page is developed by Chipset independent.
OnChip IDE Device
This item enables users to set the OnChip IDE device status, includes enable
IDE devices and setting PIO and DMA access mode, and some of new chipset
also support for SATA device (Serial-ATA)
Onboard Device
This item enables users to set the Onboard device status, includes enable USB,
AC97, MC97 and LAN devices.
Super IO Device
This item enables users to set the Super IO device status, includes enable
Floppy, COM, LPT, IR and control GPIO and Power fail status.
AIMB-252 User Manual
40

41
AIMB-252 User Manual
BIOS Operation

Onboard Serial port 1 [3F8 / IRQ4]
This item allows user to adjust serial port 1 of address and IRQ.
Onboard Parallel Port [378/IRQ7]
This item allows user to adjust parallel port of address and irq.
Parallel Port Mode [ECP+EPP]
This item allows user to adjust parallel port mode.
EPP Mode Select [EPP1.9]
This field allows you to select EPP port type 1.7 or 1.9. The choices are
“EPP1.9” and “EPP1.7”.
ECP Mode Use DMA [3]
This item allows user to adjust ECP DMA resource.
Power on after power fail
Use this to set up the system after power failure. The .Off. setting keeps the system powered off after power failure. The .On. setting boots up the system after
failure.
Watch Dog Timer Select [Disabled]
When disabled, the Watchdog Timer will be disabled. It will not monitor the time
taken for each task performed by the operating system.
When set to any time period from 10 Sec to 4 Min, the Watchdog Timer will be
enabled after that time period passes, every time the system boots up
Onboard Serial Port 3 [4F8]
This item allows user to adjust serial port 3 of address.
Serial Port 3 Use IRQ [IRQ5]
This item allows user to adjust serial port 3 of IRQ.
Onboard Serial Port 4 [4E8]
This item allows user to adjust serial port 4 of address.
Serial Port 4 Use IRQ [IRQ10]
This item allows user to adjust serial port 4 of IRQ.
Onboard Serial Port 5 [4F0]
This item allows user to adjust serial port 5 of address.
Serial Port 5 Use IRQ [IRQ11]
This item allows user to adjust serial port 5 of IRQ.
Chapter 2

2.2.6 Power Management Setup
Note!

This “Power management Setup” option configure system to most effectively saving energy while operating in a manner consistent with your
computer use style.
PCI Express PM Function
This allow you to control Power On by onboard LAN chip feature.
ACPI Function [Enabled]
This item defines the ACPI (Advanced Configuration and Power Management)
feature that makes hardware status information available to the operating system, and communicate PC and system devices for improving the power management.
ACPI Suspend Type [S1 (POS)]
This item allows user to select sleep state when suspend.
S1(POS)
The suspend mode is equivalent to a software power down;
S3(STR)
The system shuts down with the exception of a refresh current to
the system memory.
Run VGA BIOS if S3 Resume [Auto]
This item allows system to reinitialize VGA BIOS after system resume from
ACPI S3 mode.
Power Management [User Define]
This item allows user to select system power saving mode.
Min Saving
Minimum power management. Suspend Mode=1 hr.
Max Saving
Maximum power management. Suspend Mode=1 min.
User Define
Allows user to set each mode individually. Suspend Mode= Disabled or 1 min ~1 hr.
AIMB-252 User Manual
42
Video Off Method [DPMS]
This item allows user to determine the manner is which the monitor is blanked.
V/H SYNC+Blank This option will cause system to turn off vertical and horizontal synchronization ports and write blanks to the video buffer.

This option only writes blanks to the video buffer.
DPMS
Initial display power management signaling.
Video Off In Suspend [Yes]
This item allows user to turn off Video during system enter suspend mode.
Suspend Type [Stop Grant]
This item allows user to determine the suspend type.
Modem use IRQ [3]
This item allows user to determine the IRQ which the MODEM can use.
Suspend Mode [Disabled]
This item allows user to determine the time of system inactivity, all devices
except the CPU will be shut off.
HDD Power Down Mode [Disabled]
This item allows user to determine the time of system inactivity, the hard disk
drive will be powered down.
Soft-Off by PWR-BTTN [Instant-Off]
This item allows user to define function of power button.
Instant-Off
Press power button then Power off instantly.
Delay 4 Sec
Press power button 4 sec. to Power off.
Wake up by PCI card
This item allows user to Wake up the system by PCI card. The choices are
“Enabled” and “Disabled”.
Wake up by LAN [Enabled]
This item allows user to Wake up the system by LAN. The choices are “Enabled”
and “Disabled”.
Wake up by ring [Enabled]
This item allows you to wake up the system via COM port from the remote host.
The choices: "Enabled", "Disabled".
USB KB Wake_Up From S3 [Disabled]
This item allows user to set USB keyboard wake up system from S3 Enable or
Disable.
Resume by Alarm [Disabled]
The choices are “Enabled” and “Disabled”. Fields that follow below indicate date
of current month and time of alarm settings, if enabled.
Primary IDE 0 (1) and Secondary IDE 0 (1) [Disabled]
When Enabled, the system will resume from suspend mode if Primary IDE 0 (1)
or Secondary IDE 0 (1) becomes active. The choices are “Enabled” and “Disabled”.
FDD, COM, LPT PORT [Disabled]
When Enabled, the system will resume from suspend mode if the FDD, interface, COM port, or LPT port is active. The choices are “Enabled” and “Disabled”.
PCI PIRQ [A-D]# [Disabled]
When Enabled, the system resumes from suspend mode if an interrupt occurs.
The choices are “Enabled” and “Disabled”.
43
AIMB-252 User Manual
BIOS Operation

Blank Screen
Chapter 2

2.2.7 PnP/PCI Configurations

Init Display first [PCI slot]
Choose the first display interface to initiate while booting. The choice is "PCI
Slot" or "Onboard."
Reset Configuration Data [Disabled]
The default is Disabled. Select Enabled to reset Extended System Configuration
Data (ESCD) if you have installed a new add-on card, and system configuration
is in such a state that the OS cannot boot.
Resources Controlled By [Auto(ESCD)]
The commands here are “Auto(ESCD)” or “Manual”. Choosing “Manual”
requires you to choose resources from the following sub-menu. ”Auto(ESCD)”
automatically configures all of the boot and Plug and Play devices, but you must
be using Windows 95 or above.
PCI / VGA Palette Snoop [Disabled]
This is set to “Disabled” by default.
Maximum Payload Size [4096]
This allows you to set the maximum TLP payload size for PCI Express devices.
The options are [128 bytes], [256 bytes], [512 bytes], [1024 bytes], [2048 bytes],
and [4096 bytes].
AIMB-252 User Manual
44

CPU Warning Temperature
This item will prevent the CPU from overheating. The choices are “Disabled”,
“60C/140F”, “63C/145F”, “66C/151F”, “70C/158F”, “75C/167F”, “80C/176F”,
“85C/185F”, “90C/194F”, and “95C/205F”.
Current System Temperature
This shows you the current temperature of system.
Current CPU Temperature
This shows the current CPU temperature.
VCORE and Other Voltages
This shows the voltage of VCORE, +1.5 V, +3.3, +5 V, VBAT (V), and 5 VSB (V).
Shutdown Temperature
The system will shut down automatically when the CPU temperature is over the
selected setting. This function can prevent CPU damage caused by overheating.
45
AIMB-252 User Manual
BIOS Operation

Chapter 2
2.2.8 PC Health Status
2.2.9 Frequency/voltage Control

Auto Detect PCI Clk [Enabled]
When enabled, the BIOS will monitor PCI slots and turn off clock signals to all
unoccupied and inactive slots.
When disabled, the BIOS will not monitor PCI slots. All clock signals will remain
active even to unoccupied or inactive slots.
Spread Spectrum [Disabled]
This item enables users to set the spread spectrum modulation.
CPU Clock
It shows CPU Clock frequency
2.2.10 Load Setup Defaults
Note!
Load Setup Defaults loads the default system values directly from ROM.
If the stored record created by the Setup program should ever become
corrupted (and therefore unusable).
These defaults will load automatically when you turn the AIMB-252
Series system on.
AIMB-252 User Manual
46
To enable this feature, you should first go to the Advanced BIOS Features menu, choose the Security Option, and select either Setup or System, depending on which aspect you want password protected. Setup
requires a password only to enter Setup. System requires the password
either to enter Setup or to boot the system. A password may be at most
8 characters long.
To Establish Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see “Enter Password”, enter the desired password and press
<Enter>.
3. At the “Confirm Password” prompt, retype the desired password, then press
<Enter>.
4. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
To Change Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see “Enter Password”, enter the existing password and press
<Enter>.
3. You will see “Confirm Password”. Type it again, and press <Enter>.
4. Select Set Password again, and at the “Enter Password” prompt, enter the new
password and press <Enter>.
5. At the “Confirm Password” prompt, retype the new password, and press
<Enter>.
6. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
47
AIMB-252 User Manual
BIOS Operation
Note!
Chapter 2
2.2.11 Set Password
To Disable Password
1. Choose the Set Password option from the CMOS Setup Utility main menu and
press <Enter>.
2. When you see “Enter Password”, enter the existing password and press
<Enter>.
3. You will see “Confirm Password”. Type it again, and press <Enter>.
4. Select Set Password again, and at the “Enter Password” prompt, please don’t
enter anything; just press <Enter>.
5. At the “Confirm Password” prompt, again, don’t type in anything; just press
<Enter>.
6. Select Save to CMOS and EXIT, type <Y>, then <Enter>.
AIMB-252 User Manual
48
Type "Y" will quit the BIOS Setup Utility and save user setup value to
CMOS.
Type "N" will return to BIOS Setup Utility.
2.2.13 Quit Without Saving
Note!
Type "Y" will quit the BIOS Setup Utility without saving to CMOS.
Type "N" will return to BIOS Setup Utility.
49
AIMB-252 User Manual
BIOS Operation
Note!
Chapter 2
2.2.12 Save & Exit Setup
AIMB-252 User Manual
50
Chapter
3
Chipset Software
Install Utility
3
3.1 Before you Begin
To facilitate the installation of the enhanced display device drivers and utility software, you should read the instructions in this chapter carefully before you attempt
installation. The device drivers for the AIMB-252 board are located on the software
installation CD. The auto-run function of the driver CD will guide and link you to the
utilities and device drivers under a Windows system. The Intel® Chipset Software
Installation Utility is not required on any systems running Windows NT 4.0. Updates
are provided via Service Packs from Microsoft*.
Note!
The files on the software installation CD are compressed. Do not
attempt to install the drivers by copying the files manually. You must use
the supplied SETUP program to install the drivers
Before you begin, it is important to note that most display drivers need to have the
relevant software application already installed in the system prior to installing the
enhanced display drivers. In addition, many of the installation procedures assume
that you are familiar with both the relevant software applications and operating system commands. Review the relevant operating system commands and the pertinent
sections of your application software's user's manual before performing the installation.
3.2 Introduction
The Intel® Chipset Software Installation utility installs to the target system the Windows INF files that outline to the operating system how the chipset components will
be configured. This is needed for the proper functioning of the following features:
Core PCI and ISA PnP services
IDE Ultra ATA 100/66/33 and Serial ATA interface support
USB 1.1/2.0 support
Identification of Intel® chipset components in the Device Manager
Integrates superior video features. These include filtered sealing of 720 pixel
DVD content, and MPEG-2 motion compensation for software DVD
Note!
This utility is used for the following versions of Windows system, and it
has to be installed before installing all the other drivers:
Windows 2000
Windows NT
Windows XP
AIMB-252 User Manual
52
Insert the driver CD into your system's CD-ROM drive. You can see the driver folders
items. Move the mouse cursor over the folder "INF". In INF folder, you can click
"setup.exe" to complete the implement of the driver.
Chapter 3
3.3 Windows XP Driver Setup
Chipset Software Install Utility
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54
Chapter
4
VGA Setup
4
4.1 Introduction
The Intel 915GME/910GMLE integrated graphics controller provides an analog display port. You need to install the VGA driver to enable the function.
Intel Graphics Media Accelerator 900: Incorporating the latest Microsoft* DirectX*9
support capabilities, it allows software developers to create lifelike environments and
characters. Dual independent display, enhanced display modes for widescreen flat
panels, and optimized 3D support deliver an intense and realistic visual experience
without requiring a separate graphics card. @ 75 Hz refresh rate).
LVDS Interface:LVDS1: single channel 18-bit/dual channel 36-bit, LVDS2: single
channel 24-bit/dual channel 48-bit. LVDS2 is only available in AIMB-252G2M0A1E sku,(detail please see 4.3 Dual display supporting table)
supporting up to WUXGA(1600X1200) panel resolution
4.2 Windows XP Driver Setup
Note!
Before installing this driver, make sure the CSI utility has been installed
in your system. See Chapter 3 for information on installing the CSI utility.
Insert the driver CD into your system's CD-ROM drive. In a few seconds, the software
installation main menu appears, as shown in the following figure.
The following installation procedure is for Windows XP. For other operating systems,
please do a manual installation.
Move the mouse cursor over the folder "Drv_VGA". In Drv_VGA folder, you can click
Installshield Wizard under Windows\win2k_xp142550 to automatic complete the
implement of the driver.
AIMB-252 User Manual
56
Chapter 4
VGA Setup
57
AIMB-252 User Manual
BMP
Driver Information Panel Type
Ver: 6.14.10.4764 LVDS1: 800 * 600
LVDS2: 1280 * 1024
Primary
CRT
Secondary
CRT
OK
Only Display
Twin Display
Extend Display
Clone Display
Extend Display
Clone Display
AIMB-252 User Manual
-
-
-
OK
-
LVDS2
-
-
OK
CRT
-
OK
OK
LVDS1
X
-
X
LVDS2
X
X
-
CRT
-
OK
OK
LVDS1
X
-
OK
LVDS2
X
OK
-
CRT
-
OK
OK
LVDS1
X
-
X-
LVDS2
X
X
-
Drive rInformation Panel Type
Ver: 8.0
LVDS1: 800 * 600
LVDS2: 1280 * 1024
Primary
CRT
Secondary
CRT
OK
Twin Display
LVDS2
LVDS1
Driver: IEGD
VBIOS: BMP
Only Display
LVDS1
LVDS1
LVDS2
-
-
LVDS1
-
OK
-
LVDS2
-
-
OK
CRT
-
X
(No item)
OK
LVDS1
X
(No item)
-
OK
LVDS2
X
(No item)
X
(No item)
-
CRT
-
X
(No item)
X
(No item)
LVDS1
OK
-
X
(No item)
LVDS2
OK
OK
-
CRT
-
X
(No item)
X
(No item)
LVDS1
OK
-
X
(No item)
LVDS2
OK
OK
-
58
Chapter
5
5
LAN Configuration
5.1 Introduction
The AIMB-252 features single/dual Gigabit Ethernet network interface. With the
Realtek RTL8111C GbE controller designed-in, AIMB-252 implements the PCI
Express host interface (PCI-E X1) in LAN connection with the maximum throughput
of 2Gbps for heavy-duty industrial network application.
5.2 Features
Integrated 10/100/100 BASE-T transceiver
1. 10/100/1000 BASE-T triple-speed MAC
2. High-speed RISC core with 24-KB cache
3. On-chip voltage regulation
4. Supporting Wake-on-LAN (WOL) function
5. PCI Express X1 host interface
5.3 Installation
Note!
Before installing the LAN drivers, make sure the CSI utility has been
installed on your system. See Chapter 3 for information on installing the
CSI utility.
The AIMB-252's Realtek RTL8111C Gigabit integrated controller supports all major
network operating systems. However, the installation procedure varies with different
operating systems. In the following sections, refer to the one that provides driver
setup procedure for the operating system you are using.
5.4 Win XP Driver Setup (Realtek RTL8111C)
Insert the driver CD into your system's CD-ROM drive. Select the Drv_LAN folder
then click the proper Lan driver for the OS.
AIMB-252 User Manual
60
Chapter 5
Based on different OS, choose proper LAN driver to install.
LAN Configuration
61
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62
Appendix
A
A
Programming the
Watchdog
A.1 Programming the Watchdog Timer
The AIMB-252's watchdog timer can be used to monitor system software operation
and take corrective action if the software fails to function after the programmed
period. This section describes the operation of the watchdog timer and how to program it.
A.1.1 Watchdog timer overview
The watchdog timer is built into the super I/O controller W83627DHG-A. It provides
the following functions for user programming:
Can be enabled and disabled by user's program.
Timer can be set from 1 to 255 seconds or 1 to 255 minutes.
Generates an interrupt or resets signal if the software fails to reset the timer
after time-out.
A.1.2 Programming the Watchdog Timer
The I/O port address of the watchdog timer is 2E(hex) and 2F(hex).
2E (hex) is the address port. 2F(hex) is the data port.
You must first assign the address of register by writing address value into address
port 2E(hex), then write/read data to/from the assigned register through data port 2F
(hex).
AIMB-252 User Manual
64
Appendix A Programming the Watchdog
Unlock
W83627DHG-A
Select register of
watchdog timer
Enable the function of
the watchdog timer
Use the function of
the watchdog timer
Lock
W83627DHG-A
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AIMB-252 User Manual
Table A.1: Watchdog Timer Registers
Address of register (2E) Attribute
Read/Write
Value (2F) and description
87 (hex)
-
Write this address to I/O address port
2E (hex) twice to unlock the W83627HF
07 (hex)
write
Write 08 (hex) to select register of
watchdog timer.
30 (hex)
write
Write 01 (hex) to enable the function of
the watchdog timer. Disabled is set as
default.
F5 (hex)
write
Set seconds or minutes as units for the
timer.
Write 0 to bit 3: set second as counting unit. [default]
Write 1 to bit 3: set minute as counting unit.
F6 (hex)
write
0: stop timer [default]
01~FF (hex): The amount of the count,
in seconds or minutes, depends on the
value set in register F5 (hex). This number decides how long the watchdog
timer waits for strobe before generating
an interrupt or reset signal. Writing a
new value to this register can reset the
timer to count with the new value.
F7 (hex)
read/write
Bit 6: Write 1 to enable keyboard to
reset the timer, 0 to disable.[default]
Bit 5: Write 1 to generate a timeout signal immediately and automatically
return to 0. [default=0]
Bit 4: Read status of watchdog timer, 1
means timer is ""time out""."
AA (hex)
-
Write this address to I/O port 2E (hex)
to lock the watchdog timer.2.
AIMB-252 User Manual
66
Appendix A Programming the Watchdog
A.1.3 Example Program
1. Enable watchdog timer and set 10 sec. as timeout interval
;----------------------------------------------------------Mov dx,2eh ; Unlock W83627DHG-A
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;----------------------------------------------------------Dec dx ; Set second as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In al,dx
And al,not 08h
Out dx,al
;----------------------------------------------------------Dec dx ; Set timeout interval as 10 seconds and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,10
Out dx,al
;----------------------------------------------------------Dec dx ; lock W83627DHG-A
Mov al,0aah
Out dx,al
2. Enable watchdog timer and set 5 minutes as timeout interval
;----------------------------------------------------------Mov dx,2eh ; unlock W83627DHG-A
Mov al,87h
Out dx,al
Out dx,al
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AIMB-252 User Manual
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;----------------------------------------------------------Dec dx ; Set minute as counting unit
Mov al,0f5h
Out dx,al
Inc dx
In al,dx
Or al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Set timeout interval as 5 minutes and start counting
Mov al,0f6h
Out dx,al
Inc dx
Mov al,5
Out dx,al
;----------------------------------------------------------Dec dx ; lock W83627DHG-A
Mov al,0aah
Out dx,al
3. Enable watchdog timer to be reset by mouse
;----------------------------------------------------------Mov dx,2eh ; unlock W83627DHG-A
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;-----------------------------------------------------------
AIMB-252 User Manual
68
69
AIMB-252 User Manual
Appendix A Programming the Watchdog
Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable watchdog timer to be reset by mouse
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,80h
Out dx,al
;----------------------------------------------------------Dec dx ; lock W83627DHG-A
Mov al,0aah
Out dx,al
4. Enable watchdog timer to be reset by keyboard
;----------------------------------------------------------Mov dx,2eh ; unlock W83627DHG-A
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable watchdog timer to be strobed reset by keyboard
Mov al,0f7h
Out dx,al
Inc dx
In al,dx
Or al,40h
Out dx,al
;----------------------------------------------------------Dec dx ; lock W83627DHG-A
Mov al,0aah
Out dx,al
5. Generate a time-out signal without timer counting
;----------------------------------------------------------Mov dx,2eh ; unlock W83627DHG-A
Mov al,87h
Out dx,al
Out dx,al
;----------------------------------------------------------Mov al,07h ; Select registers of watchdog timer
Out dx,al
Inc dx
Mov al,08h
Out dx,al
;----------------------------------------------------------Dec dx ; Enable the function of watchdog timer
Mov al,30h
Out dx,al
Inc dx
Mov al,01h
Out dx,al
;----------------------------------------------------------Dec dx ; Generate a time-out signal
Mov al,0f7h
Out dx,al ;Write 1 to bit 5 of F7 register
Inc dx
In al,dx
Or al,20h
Out dx,al
;----------------------------------------------------------Dec dx ; lock W83627DHG-A
Mov al,0aah
Out dx,al
AIMB-252 User Manual
70
Appendix
B
B
Pin Assignments
B.1 IDE Hard Drive Connector (IDE1)
Table B.1: IDE Hard Drive Connector (IDE1)
Pin
Signal
Pin
Signal
1
IDE RESET*
2
GND
3
DATA 7
4
DATA 8
5
DATA 6
6
DATA 9
7
DATA 5
8
DATA 10
9
DATA 4
10
DATA 11
11
DATA 3
12
DATA 12
13
DATA 2
14
DATA 13
15
DATA 1
16
DATA 14
17
DATA 0
18
DATA 15
19
GND
20
N/C
21
DISK DMA REQUEST
22
GND
23
IO WRITE
24
GND
25
IO READ
26
GND
27
IO CHANNEL READY
28
CSEL
29
HDACKO*
30
GND
31
IDE IRQ
32
NC
33
ADDR 1
34
PDIAG
35
ADDR 0
36
ADDR 2
37
HARD DISK SELECT 0*
38
HARD DISK SELECT 1*
39
IDE ACTIVE*
40
GND
* low active
AIMB-252 User Manual
72
2 1
13 12
15 14
25 24
Table B.2: Parallel Port Connector (LPT1)
Pin
Signal
Pin
Signal
1
STROBE*
14
AUTOFD*
2
D0
15
ERR
3
D1
16
INIT*
4
D2
17
SLCTINI*
5
D3
18
GND
6
D4
19
GND
7
D5
20
GND
8
D6
21
GND
9
D7
22
GND
10
ACK*
23
GND
11
BUSY
24
GND
12
PE
25
GND
13
SLCT
* low active
B.3 USB Connector (USB56,USB78)
7 5 3 1
10 8 6 4
2
Table B.3: USB5/USB6 Connector (USB56)
Pin
USB1 Signal
Pin
USB2 Signal
1
+5 V
2
+5 V
3
LP5-
4
LP5+
5
LP5+
6
LP5-
7
GND
8
GND
9
NC
10
GND
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AIMB-252 User Manual
Appendix B Pin Assignments
B.2 Parallel Port Connector (LPT1)
B.4 VGA Connector (VGA1)
5
1
10
6
15
11
Table B.4: VGA Connector (VGA1)
Pin
Signal
Pin
Signal
1
RED
9
VCC
2
GREEN
10
GND
3
BLUE
11
N/C
4
N/C
12
SDAT
5
GND
13
H-SYNC
6
GND
14
V-SYNC
7
GND
15
SCLK
8
GND
B.5 RS-232 Serial Port (COM1)
1
6
Table B.5: Rs-232 Serial Port (COM1)
Pin
Signal
1
DCD
2
SIN
3
SOUT
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
AIMB-252 User Manual
74
1
2
3
4
17
18
19
20
Table B.6: RS-232 Serial Port (COM23)
Pin
Signal
Pin
Signal
1
DDCD2_N
2
DDSR2_N
3
RRXD2
4
RRTS2_N
5
TTXD2
6
CCTS2_N
7
DDTR2_N
8
RRI2_N
9
GND
10
GND
11
DDCD3_N
12
DDSR3_N
13
RRXD3
14
RRTS3_N
15
TTXD3
16
CCTS3_N
17
DDTR3_N
18
RRI3_N
19
GND
20
GND
Table B.7: RS-232 Serial Port (COM45)
Pin
Signal
Pin
Signal
1
DDCD4_N
2
DDSR4_N
3
RRXD4
4
RRTS4_N
5
TTXD4
6
CCTS4_N
7
DDTR4_N
8
RRI4_N
9
GND
10
GND
11
DDCD5_N
12
DDSR5_N
13
RRXD5
14
RRTS5_N
15
TTXD5
16
CCTS5_N
17
DDTR5_N
18
RRI5_N
19
GND
20
GND
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AIMB-252 User Manual
Appendix B Pin Assignments
B.6 RS-232 Serial Port (COM2 ~ COM5)
B.7 PS/2 Keyboard/ Mouse Connnector (KBMS1)
11
12
10
9
8
7
6
5
4
3
2
1
Table B.8: PS/2 Keyboard/ Mouse Connector (KBMS1)
Pin
Signal
Pin
Signal
1
KB DATA
2
NC
7
MS DATA
6
NC
3
GND
8
NC
4
VCC
9
GND
5
KB CLOCK
10
VCC
11
MS CLOCK
12
NC
B.8 CPU Fan Power Connector (CPUFAN1)
1
Table B.9: CPU Fan Power Connector (CPUFAN1)
Pin
Signal
1
FAXIO
2
+12 V
3
GND
4
NC
AIMB-252 User Manual
76
You can use an LED to indicate when the single board computer is on. Pin 1 of JFP3
supplies the LED's power, and Pin 3 is the ground.
Table B.10: Power LED and Keylock Connector (JFP3)
Pin
Function
1
LED power (+5 V)
2
NC
3
GND
4
KEYLOCK#
5
GND
B.10 External Speaker Connector (JFP2/ SPEAKER)
The single board computer has its own buzzer. You can also connect it to the external
speaker on your computer chassis.
Table B.11: External Speaker Connector (JFP2/SPEAKER)
Pin
Signal
Pin
Signal
1
SPK+
2
HDDLED+
3
NC
4
HDDLED-
5
SPK_IN
6
SMB_DAATA
7
SPK-
8
SMB_CLK
77
AIMB-252 User Manual
Appendix B Pin Assignments
B.9 Power LED & Keyboard Lock Connector (JFP3)
B.11 Reset Connector (JFP1/ RESET)
1
2
3
4
Table B.12: Reset Connector (JFP1/ RESET)
Pin
Signal
1
PWR_BTN#
2
GND
3
RESET
4
GND
B.12 HDD LED Connector (JFP2/ HDDLED)
2
4
Table B.13: HDD LED Connector (JFP2/ HDDLED)
Pin
Signal
2
HDDLED+
4
HDDLED-
B.13 ATX Soft Power Switch (JFP1/ PWR_SW)
1
Table B.14: ATX Soft Power Switch (JFP1/ PWR_SW)
Pin
Signal
1
PWR-BTN
2
GND
AIMB-252 User Manual
78
Appendix B Pin Assignments
B.14 AC-97 Audio Interface (FPAUD1)
1
Table B.15: AC-97 Audio Interface (FPAUD1)
1 MIC-IN
2 GND
3 MIC_VCC
4 VCC
5 LRR
6 LOUT_R
7 JDO
8 NC
9 LRL
10 LOUT_L
B.15 SM Bus Connector (JFP2)
6
8
Table B.16: SM Bus Connector (JFP2)
Pin
Signal
6
SMB_DATA
8
SMB_CLK
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AIMB-252 User Manual
B.16 GPIO Pin Header (GPIO1)
1
2
3
4
17
18
19
20
Table B.17: GPIO Pin Header (GPIO1)
Pin
Signal
Pin
Signal
1
DIO_GP20
2
DIO_GP10
3
DIO_GP21
4
DIO_GP11
5
DIO_GP22
6
DIO_GP12
7
DIO_GP23
8
DIO_GP13
9
DIO_GP24
10
DIO_GP14
11
DIO_GP25
12
DIO_GP15
13
DIO_GP26
14
DIO_GP16
15
DIO_GP27
16
DIO_GP17
17
SMBCLK_PCI
18
SMBDATA_PCI
19
GND
20
VCC5_DIO
AIMB-252 User Manual
80
1 3
37 39
2 4
38 40
Table B.18: LVDS Connector (LVDS1/2)
Pin
Signal
Pin
Signal
1
VDDSAFE_1
21
VDDSAFE_2
2
GND_1
22
GND_7
3
VDDSAFE_3
23
VDDSAFE_4
4
OD0-
24
ED0-
5
OD0+
25
ED0+
6
GND_2
26
GND_8
7
OD1-
27
ED1-
8
OD1+
28
ED1+
9
GND_3
29
GND_9
10
OD2-
30
ED2-
11
OD2+
31
ED2+
12
GND_4
32
GND_10
13
OCK-
33
ECK-
14
OCK+
34
ECK+
15
GND_5
35
GND_11
16
DDC_CLK
36
DDC_DAT
17
GND_6
37
GND_12
18
OD3-
38
ED3-
19
OD3+
39
ED3+
20
HPLG
40
VCON
81
AIMB-252 User Manual
Appendix B Pin Assignments
B.17 LVDS Connector (LVDS1/LVDS2)
B.18 LVDS Power Jumper (JLV1, JLV2)
Voltage
Jumper Setting
1
*3.3V
2
3
1
5V
2
3
*default setting
Table B.19: LVDS Power Jumper (JLV1, JLV2)
Pin
Signal
1
VCC3
2
VDD_LCD
3
VCC
B.19 LVDS Invert (INV1, INV2)
Table B.20: LVDS Invert (INV1, INV2)
Pin
Signal
1
VCC12
2
GND
3
BKLTEN
4
VBR
5
VCC
AIMB-252 User Manual
82
Table B.21: System I/O Ports
Addr. range (Hex)
Device
000-01F
DMA controller
020-021
Interrupt controller 1, master
022-023
Chipset address
040-05F
8254 timer
060-06F
8042 (keyboard controller)
070-07F
Real-time clock, non-maskable interrupt (NMI)
mask
080-09F
DMA page register
0A0-0BF
Interrupt controller 2
0C0-0DF
DMA controller
0F0
Clear math co-processor
0F1
Reset math co-processor
0F8-0FF
Math co-processor
1F0-1F8
Fixed disk
200-207
Game I/O
278-27F
Parallel printer port 2 (LPT3)
290-297
On-board hardware monitor
2F8-2FF
Serial port 2
300-31F
Prototype card
360-36F
Reserved
378-37F
Parallel printer port 1 (LPT2)
380-38F
SDLCm bisynchronous 2
3A0-3AF
Bisynchronous 1
3B0-3BF
Monochrome display and printer adapter (LPT1)
3C0-3CF
Reserved
3D0-3DF
Color/graphics monitor adapter
3F0-3F7
Diskette controller
3F8-3FF
Serial port 1
B.21 DMA Channel Assignments
Table B.22: DMA Channel Assignments
Channel
Function
0
Available
1
Available
2
Floppy disk (8-bit transfer)
3
Available
4
Cascade for DMA controller 1
5
Available
6
Available
7
Available
83
AIMB-252 User Manual
Appendix B Pin Assignments
B.20 System I/O Ports
B.22 Interrupt Assignments
Table B.23: Interrupt Assignments
Priority
Interrupt#
Interrupt Source
1
NMI
Parity error detected
2
IRQ0
Interval timer
3
IRQ1
Keyboard
-
IRQ2
Interrupt from controller 2 (cascade)
4
IRQ8
Real-time clock
5
IRQ9
Cascaded to INT 0A (IRQ 2)
6
IRQ10
Serial communication port 4
7
IRQ11
Serial communication port 5
8
IRQ12
PS/2 mouse
9
IRQ13
INT from co-processor
10
IRQ14
Primary IDE Channel
12
IRQ3
Serial communication port 2
13
IRQ4
Serial communication port 1
14
IRQ5
Serial communication port 3
15
IRQ6
Diskette controller (FDC)
16
IRQ7
Parallel port 1 (print port)
B.23 1st MB Memory Map
Table B.24: 1st MB Memory Map
Addr. range (Hex)
Device
E0000h - FFFFFh
BIOS
CC000h - DFFFFh
Unused
C0000h - CBFFFh
VGA BIOS
A0000h - BFFFFh
Video Memory
00000h - 9FFFFh
Base memory
B.24 PCI Bus Map
Table B.25: PCI Bus Map
Function Signals
Device ID
INT# pin
GNT
PCI slot 1
AD31
INT B, C, D, A
SNT0 REQ0
AIMB-252 User Manual
84
REQ
Appendix B Pin Assignments
AIMB-252 User Manual
85
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Please verify specifications before quoting. This guide is intended for reference
purposes only.
All product specifications are subject to change without notice.
No part of this publication may be reproduced in any form or by any means,
electronic, photocopying, recording or otherwise, without prior written permission of the publisher.
All brand and product names are trademarks or registered trademarks of their
respective companies.
© Advantech Co., Ltd. 2008

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