User Guide

1
Chapter 1
2-3- Preface
Thank you for chosen 531CF mainboard. This mainboard is based on Pentium® processor PC/AT
compatible system with ISA bus and PCI local bus. This board has including some special designs, such as
share memory 3D AGP VGA on-board, 3D Stereo Sound System audio chip on-board, ACPI/APM power
management along with many other powerful features. We think you will enjoy your personal computer
because of your right choice.
1-2 Overview
• Support 100MHz Bus Frequency processor.
• Support SDRAM clock selectable in 100MHz by jumper setting in order to allow user has
wider choice of SDRAM.
• Provide PC Health Monitoring to track CPU temperature, CPU/SYSTEM FAN Speed and
system voltage.
• Built-In High performance 3D AGP VGA:
∗ Support share memory 2MB to 8MB selectable in BIOS SETUP.
∗ 64 bits memory data interface.
∗ Integrated programmable 24-bit true-color RAMDAC up to 230MHz pixel clock.
∗ Integrated two 96x64 video line buffers for MPEG video playback.
∗ Support 64 bit memory data bus interface.
∗ Integrated a high performance and high quality 3D engine.
∗ Support DIC, Direct Draw Driver.
∗ Support AGP Spec.1.0 compliant, 1x mode(66MHz), 2x mode(133MHz).
• Built in high quality PCI-Based HRTF 3D Extension Positional Audio Chip
∗ Supports rear side speakers, C3DX positional audio in 4 channels speaker mode.
∗ Professional digital audio interface to support 24-bit SPDIF IN and OUT (44.1K and 48K
format).
∗ HRTF-base 3D positional audio, supporting DirectSound™ 3D and Aureal A3D™
interface.
∗ Digital functions that capable to provide hi-fi stereo, Dolby, 3D surround effects, and
playing MP3 music.
• You can add our Fiber Optic upgrade kit (Optional) for super high quality sound transaction,
such as playing MD/CD; MD recording; CD-ROM directly recording to MD; (This upgrade kit
includes Optical Module, Optical Cable).