User Guide

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Memory
This motherboard provides three 168-pin SDRAM DIMM socket that support up to 3GB of PC-100 and PC-133 compliant
SDRAM (Synchronous Dynamic Random Access Memory). You may install 64, 128, 256 and 512MB with Non-ECC SDRAM
modules.
Ultra DMA 33/66/100 Bus Mater IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels,
supports Ultra DMA
33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 4, and supports Enhanced IDE devices.
On-board AC97 Sound
AX4BS Pro / AX4BS-V is equipped with the AC97 sound chip. This on-board audio includes a complete audio recording and
playback system.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust CPU FSB
frequency from 100~248MHz by 1MHz stepping adjustment, and lets your system can get maximum performance.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
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