586/686 Processor Based PX5 Mainboard PS/2 mouse port IR Connector Built-in AT keyboard connector with option USB connector for two optional USB ports to convert to PS/2 keyboard connector Super I/O chip ¡´ ¡´ ¡´ 16550 compatible serial port (COM1) Four ISA slots ¡´ ¡´ ATX power connector ¡´ ¡´ ¡´ ¡´ AT power connector Four PCI slots ¡´ ¡´ 16550 compatible serial port (COM2) ¡´ Two floppy disk drive connectors support up Award Plug and Play BIOS to 2.88MB ¡´ Standard/EPP/ECP parallel port Clock generator chip ¡´ Two 168-pin DIMM sockets for 3.3V Employs switching power design to stabilize unbuffered DRAM modules CPU operation ɀDIMM sockets support SDRAM, EDO and FP DRAM Socket 7 ¡´ Two 72-pin SIMM sockets support EDO and ɀSupports 50,55,60,66,75 MHz CPU FP DRAM ¡´ external clock speeds ¡´ Primary IDE connector Supports 75-200 MHz Pentium processors ɀ ↧ ¡´ Secondary IED connector and 166/200 MHz Pentium↧ processors ¡´ Intel 430TX chipset (MTXC and PIIX4 with MMX™ technology ¡´ chips) ɀSupports AMD-K6™,AMD-K5™ PR75, PR90,PR100,PR120, PR133,PR150, ɀSupports Ultra DMA/33 IDE protocol ¡´ PR166 processors ɀSupports fast type-F DMA protocol ¡´ ¡´ Supports Advanced Configuration and ɀSupports Cyrix 6x86™ P120+, P133+, ɀ P150+ and P166+ processors ¡´ Power Interface (ACPI) specification ɀSupports OS directed power management Built-in 512K P.B.SRAM ¡´ (Windows↧95 soft power off) ɀSupports PCI Rev.2.1 TAG RAM ABIT Computer Corporation 3F-7, No. 79, Sec. 1, Hsin Tai Wu Rd. Hsi Chi, Taipei Hsien, Taiwan, R.O.C. Tel: 886-2-6981888 Fax: 886-2-6981811, 6981822, 6981833 http:// www.abit.com.tw PX5 Pentium↧ Processor Based AT Mainboard With CPU SOFT MENU™ Technology Based on Intel's 430TX chipset, the PX5 includes all of the required specifications for PC 97 such as Ultra DMA/33 IDE interface and ACPI power management functions. The PX5 also implements SOFT MENU™, a leading technology that eliminates all jumpers on the mainboard that set CPU parameters. With SOFT MENU™ end-users are able to use software to easily and correctly install their own CPU, enabling them to upgrade to a Pentium↧ processor with MMX™ technology, AMD-K6™ processor, or Cyrix M2™ processor. Specifications: * CPU Ɂ No jumpers or DIP switches needed to set CPU parameters Ɂ Employs switching power design to stabilize CPU operation Ɂ Supports 50, 55, 60, 66, 75 MHz CPU external clock speeds Ɂ Supports 75-200 MHz Pentium↧ processors and 166/200 MHz Pentium↧ processors with MMX™ technology Ɂ Supports AMD-K5™ PR75 ~ PR166 processors Ɂ Supports Cyrix 6x86™ PR120+ ~ PR166+ processors Ɂ Reserved circuitry for future processors *Chipset Ɂ Intel 430TX chipset (MTXC and PIIX4 chips) Ɂ Supports Ultra DMA/33 IDE protocol Ɂ Supports fast type-F DMA protocol Ɂ Supports Advanced Configuration and Power Interface (ACPI) specification Ɂ Supports OS directed power management (Windows↧ 95 soft power off) Ɂ Supports PCI Rev. 2.1 *Memory(DRAM) Ɂ Two 168-pin DIMM sockets support SDRAM, EDO and FP DRAM Ɂ Two 72-pin SIMM sockets support EDO and FP DRAM Ɂ Supports up to 256MB *L2 Cache Memory Ɂ Built-in 512K P. B. SRAM *System BIOS Ɂ Award Plug and Play BIOS Supports APM, DMI, and ACPI Ɂ Built-in user friendly SOFT MENU™ sets all CPU parameters *Multi I/O Functions Ɂ Two floppy disk drive connectors support up to 2.88MB Ɂ Two IDE channels[PIO mode 0~4 and Bus Master] Ɂ One Standard/EPP/ECP parallel port and two 16650 compatible serial ports Ɂ Built-in AT keyboard connector with option to convert to PS/2 keyboard connector Ɂ Built-in PS/2 mouse header with option to convert to PS/2 mouse connector Ɂ USB connector for two optional USB port *Miscellaneous Ɂ Baby AT form factor Ɂ Four ISA slots and four PCI slots Ɂ Supports keyboard Re-new fuse Ɂ Supports NEC PC98 3-mode FDD format Note: All brand names and trademarks are the property of their respective owners. ABIT Computer Corp. Rev 0.2.