® Dual Pentium II/III Processor- PCA-6275 based PCI/ISA-bus CPU Card Accommodates three DIMM ATX power control modules, up to 768 MB connector Intel 82440BX PCI set Bi-directional parallel port Metal USB ports bracket for COM1 stability connector COM2 connector PS/2 mouse & keyboard FDD connector connector EIDE CPU temperature ® Intel Pentium II/III sensor connector connector + processor up to 500 MHz Introduction Features ® The PCA-6275 is a high-performance dual Pentium II/III • Dual Intel Slot 1 architecture, supports 66/100 MHz FSB CPU card. Using Intel's 82440BX chipset, the PCA-6275 is ® + • Pentium II/III processors up to 500 MHz able to support up to 500+ MHZ of processing speed. This • Intel 82440BX PCI set makes it an ideal choice for applications that require extremely high performance, such as computer telephony. • Three DIMM sockets for SDRAM up to 768 MB, supports ECC Each CPU provides 512 KB on-chip L2 cache, eliminating the need for external SRAM chips. The PCA-6275 has two • Winbond 837810 to support on-board security; for PCI EIDE interfaces (for up to four devices), and an FDD monitoring CPU fan, voltage and temperature interface (for up to two devices). Other features include • Award Flash BIOS two RS-232 serial ports (16C550 UARTs with 16-byte FIFO • On-board ATX power control connector to meet ACPI or compatible), one enhanced parallel port (supports requirements SPP/EPP/ECP), and support for two USB (Universal Serial Bus) ports. The PCI Bus Master IDE controller supports • Two enhanced IDE ports, supporting Ultra DMA/33, PIO Ultra DMA/33 operation. This provides data transfer rates Mode 4, and DMA Mode 2 up to 33 MB/sec, and allows drive capacities up to 8.4 GB. • Two USB ports System BIOS supports boot-up from IDE CD-ROM. • Two RS-232 serial ports A backup of CMOS data is stored in the Flash memory, • One bi-directional parallel port, supports SPP/ECP/EPP which protects data even after a battery failure. Also included is a 63-level watchdog timer, which resets the • One floppy port CPU or generates an interrupt if a program cannot be • PCI V2.1 compliant executed normally. This enables reliable operation in unattended environments. • 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 Mechanical and environmental specifications Specifications • Operating temperature: 0 ~ 60° C (32 ~ 140° F) ® + • CPU: Dual Intel Pentium II/III up to 500 MHz • Power supply voltage: +5 V @ max. 11.2 A • BIOS: Award Flash BIOS 2 MB +12 V @ max. 1.0 A • Green function: Supports power management operation -12 V @ max. 0.5 A via BIOS. Activated by keyboard or mouse activity • Board size: 338 x 122 mm (13.3" x 4.8") • Bus interface: PCI/ISA bus, PICMG compliant • Board weight: 0.5 kg (1.2 lbs) • Data bus: 64-bit Ordering Information • Bus speed: PCI: 33 MHz ISA: 8 MHz q PCA-6275-00A ® Dual Pentium II/III processor-based PCI full-size CPU • DMA channels: 7 card • 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