System Chipset

ALi M1531

Form Factor

ATX

ATX Power Control Interface

One 4-pin header to support; ATX power control with Modem Ring-On and Wake-On-LAN function

Auxiliary I/O Interfaces

System reset switch, external speaker, Keyboard lock and HDD active LED

BIOS

AMI system BIOS with 256KB Flash ROM

Board Weight

0.9 lb. (0.41kg)

Bus Interface

Follow PICMG standard (32-bit PCI and 16-bit ISA); Fully complies with PCI bus specification V2.1; AGP specification V1.0 compliant

Chipset

ALi M1541/M1543C Aladdin 5

CPU Temperature Control

Automatically control CPU speed to prevent it from over heating

Disk-On-Chip (DOC) Feature

Reserved one 32-pin socket for M-system Flash Disk up to 72MB

External Power Connector

Supports one standard P8 power connector to enhance power driving

FIR Interface

Supports one 6-pin header for serial Fast Infra Red wireless communication

Floppy Drive Interface

Supports one FDD port up to two floppy drives and 5-1/4"(360K, 1.2MB), 3-1/2" (720K, 1.2MB, 1.44MB, 2.88MB) diskettes

High Driving Capability

Supports high driving capability for multi-slots ISA-bus

L2 Cache Memory

On-board 512KB Pipeline Burst Static RAM

Main Memory

Three 168-pin DIMM sockets, supporting 3.3V SDRAM or EDO DRAM with parity and ECC function up to 768MB

Main processor

Intel Pentium P54C/P55C, AMD K5/K6/K6-2 series, Cyrix M1/M2 series or compatible up to 400 MHz. CPU bus clock : 66/75/83/100 MHz; CPU core/bus clock ratio : X1.5 to X5.5; CPU Vcore Voltage : 1.8V to 3.5V

On-board VGA Feature

3D ATI RAGE PRO AGP display with 4MB/8MB SGRAM and one DSUB-15 VGA connector to support max. resolution of 1600x1200 at 65K colors

Operating Temperature

0 ? ? 60 ? (32? ? 1 40?)

Outline Dimension (L X W)

339.5mm (13.36”) X 121.5mm (4.78”)

Parallel Port

Supports one SPP, EPP/ECP bi-directional parallel port

PCB layout

6 layer

PCI IDE Interface

Supports two enhanced IDE ports up to four HDD devices with PIO mode 5 and Ultra DMA-33 mode 2 timing feature

Power Good

On-board power good generator with reset time, 300ms ? 500ms

Power Requirements

+5V @10.0A (typ.), +12V @80mA, -12V @20mA

Processor

Cyrix M1/M2

PS/2 Mouse and Keyboard Interface

Supports two 6-pin Mini-DIN connectors and one 5-pin shrouded connector for PS/2 mouse, keyboard and Backplane connection

Real Time Clock/Calendar (RTC)

Real Time Clock/calendar with battery backup for 10-year data retention

Relative Humidity

5% ? 95%, non-condensing

Serial Ports

Support two high-speed serial ports with 16-byte FIFOs

Storage Temperature

-20? ? 80 ?

USB Interface

Supports two USB (Universal Serial Bus) ports for high speed I/O peripheral devices

Watchdog Timer

0.5,1,2,4,8,16,32,64 sec time-out intervals by jumper setting