PCA-6275 Dual Pentium® II/III Processorbased PCI/ISA-bus CPU Card Accommodates three DIMM modules, up to 768 MB ATX power control connector Bi-directional parallel port Intel 82440BX PCI set Metal bracket for stability USB ports COM1 connector COM2 connector FDD connector CPU temperature sensor connector Intel Pentium® II/III processor up to 500+ MHz PS/2 mouse & keyboard connector EIDE connector Introduction Features The PCA-6275 is a high-performance dual Pentium® II/III CPU card. Using Intel's 82440BX chipset, the PCA-6275 is able to support up to 500+ MHZ of processing speed. This makes it an ideal choice for applications that require extremely high performance, such as computer telephony. • Dual Intel Slot 1 architecture, supports 66/100 MHz FSB Each CPU provides 512 KB on-chip L2 cache, eliminating the need for external SRAM chips. The PCA-6275 has two PCI EIDE interfaces (for up to four devices), and an FDD interface (for up to two devices). Other features include two RS-232 serial ports (16C550 UARTs with 16-byte FIFO or compatible), one enhanced parallel port (supports SPP/EPP/ECP), and support for two USB (Universal Serial Bus) ports. The PCI Bus Master IDE controller supports Ultra DMA/33 operation. This provides data transfer rates up to 33 MB/sec, and allows drive capacities up to 8.4 GB. System BIOS supports boot-up from IDE CD-ROM. A backup of CMOS data is stored in the Flash memory, which protects data even after a battery failure. Also included is a 63-level watchdog timer, which resets the CPU or generates an interrupt if a program cannot be executed normally. This enables reliable operation in unattended environments. • Pentium® II/III processors up to 500+ MHz • Intel 82440BX PCI set • Three DIMM sockets for SDRAM up to 768 MB, supports ECC • Winbond 837810 to support on-board security; for monitoring CPU fan, voltage and temperature • Award Flash BIOS • On-board ATX power control connector to meet ACPI requirements • Two enhanced IDE ports, supporting Ultra DMA/33, PIO Mode 4, and DMA Mode 2 • Two USB ports • Two RS-232 serial ports • One bi-directional parallel port, supports SPP/ECP/EPP • One floppy port • PCI V2.1 compliant • PICMG 2.0 compliant • Additional metal bracket to provide board stability for the Pentium® II/III processors • CMOS backup battery 7 year lifetime • ISA High Drive Note: All features and specifications are subject to change without notice. PCA-6275 Specifications • CPU: Dual Intel Pentium® II/III up to 500+ MHz • BIOS: Award Flash BIOS 2 MB • Green function: Supports power management operation via BIOS. Activated by keyboard or mouse activity • Bus interface: PCI/ISA bus, PICMG compliant Mechanical and environmental specifications • Operating temperature: 0 ~ 60° C (32 ~ 140° F) • Power supply voltage: +5 V @ max. 11.2 A +12 V @ max. 1.0 A -12 V @ max. 0.5 A • Board size: 338 x 122 mm (13.3" x 4.8") • Board weight: 0.5 kg (1.2 lbs) • Data bus: 64-bit • Bus speed: PCI: 33 MHz ISA: 8 MHz • DMA channels: 7 • Interrupt levels: 15 • RAM: Up to 768 MB in three available 168-pin DIMM sockets. Supports SDRAM PC100 • Error correction (parity DRAM only): Modules can detect multi-bit memory errors. Correction of 1-bit memory errors • PCI enhanced IDE hard disk drive interface: Supports up to four IDE (AT bus) large (up to 8.4 GB) hard disk drives or other enhanced IDE devices. Supports PIO Mode 4 (16.67 MB/s data transfer rate) and Ultra DMA/33 (33 MB/s data transfer rate). BIOS enabled/disabled • Floppy disk drive interface: Supports up to two floppy disk drives, 5¼" (360 KB and 1.2 MB) and/or 3½" (720 KB, 1.44 MB, and 2.88 MB). BIOS enabled/disabled. Also supports Japanese "Floppy 3" mode • Enhanced parallel port: Configurable to LPT1, LPT2, LPT3 or disabled. Standard DB-25 female connector provided. Supports SPP/EPP/ECP • Serial ports: Two RS-232 ports with 16C550 UARTs (or compatible) with 16-byte FIFO buffer. Supports speeds up to 115.2 Kbps. Ports can be individually configured to COM1, COM2 or disabled • Watchdog timer: Can generate a system reset or IRQ11. The watchdog timer is programmable, with each unit equal to one second (63 levels). The program uses I/O ports hex 043h and 443h to control the watchdog timer • Keyboard and PS/2 mouse connector: A 6-pin mini-DIN connector is located on the mounting bracket for easy connection to a keyboard or PS/2 mouse. An on-board keyboard pin header connector is also available • ISA High Drive: Up to 64 mA 2010617500 MN8g Ordering Information q PCA-6275-00A Dual Pentium® II/III processor-based PCI full-size CPU card