MATSONIC SiS 620 User Manual

The information presented in this publication has been
carefully checked for reliability; however, no responsibil­ity is assumed for inaccuracies. Specifications are subject
to change without notice.

Trademarks

PS/2, OS/2, IBM, PC/AT, and PC/XT are registered trademarks of
International Business Machines Corporation.

Intel, Celeron and Pentium® II/III are registered trademarks of Intel
Corporation.

Award is a registered trademark of Award Software Inc.
MS-DOS, Windows 3.1/95/98/NT, Direct Sound 3D and Direct Mu-

sic are registered trademarks of Microsoft Corporation.
A3D is a registered trademark of Aureal Inc.
Sound Blaster is a registered trademark of Creative Technology, Ltd.
PC-cillin and ChipAway Virus are registered trademarks of Trend

Micro, Inc.
SiS is a registered trademark of Silicon Integrated Systems

Corporation.

Copy right (C) 1999.
All Rights Reserved.

MS7380SG, Version 1.1

S6X/March 1999

Chapter 1: Introduction ........................................................................... 0

Key Features ........................................................................................ 1

Unpacking the Mainboard & Static Electricity Precautions ................ 3

Notice ................................................................................................... 4

Chapter 2: Hardware Configuration ...................................................... 5

Mainboard Component Locations ....................................................... 6

CPU Installation ................................................................................... 7

Installation Procedures .................................................................... 8

CPU Speed Setting .......................................................................... 10

Memory Installation ............................................................................. 11

Jumper Settings .................................................................................... 12

J12 - CMOS RAM Clear Selector ................................................... 12

J13 - Keyboard Power On Selector ................................................. 12

ATX Functions & Connectors ............................................................. 13

Software Power-Off ........................................................................ 13

Modem Ring Power Up .................................................................. 13

Alarm Wake Up .............................................................................. 13

Keyboard Power On ........................................................................ 13

PWR1 - ATX Power Connector ...................................................... 14

J10(21,22) - Power Button/Suspend Switch Connector .................. 14

J4 - Wake On LAN Connector ........................................................ 14

Connectors ............................................................................................ 15

External Connectors Location ......................................................... 15

FDC1 - Floppy Disk Port ................................................................. 16

IDE1/IDE2 - Primary/Secondary IDE Ports .................................... 16

FAN1,2 - Fan Power Connectors ..................................................... 16

IR - InfraRed Connector .................................................................. 17

J10 - Case Connectors ..................................................................... 18

ii Contents

Onboard PCI Sound ..............................................................................19

Sound and Game .............................................................................19

CD1/CD2 - Analog Audio from CD-ROM .....................................19

J16 - Digital Audio Connector ........................................................20

J6 - SPDIF OUT Signal Level Selector ..........................................20

J17 - Internal SPDIF IN Connector ................................................20

Notice for PCI Sound application ...................................................21

The Four Speakers System ..............................................................22

Onboard VGA .......................................................................................23

Chapter 3: BIOS Setup ...........................................................................24

Running the Setup Utility .....................................................................25

Standard CMOS Setup Page .................................................................26

BIOS & CPU Features Setup Page .......................................................27

Chipset Features Setup Page .................................................................29

Power Management Setup Page ...........................................................31

PnP / PCI Configuration Page ..............................................................34

Load BIOS Defaults .............................................................................35

Load Setup Defaults .............................................................................35

Integrated Peripherals Setup Page ........................................................36

Password Settings .................................................................................38

Change or Remove the Password ...................................................38

IDE HDD Auto Detection ....................................................................38

Save and Exit Setup ..............................................................................38

Exit Without Saving ..............................................................................39

Chapter 4: Software Driver ....................................................................40

iii

This mainboard is a SiS 620 100MHz high-performance
mainboard based on the Slot 1 microprocessor, and pro­vides CPU Plug and Play feature for faster and easier CPU
installation. The mainboard features with highly flexible
configurations and is fully IBM PC/AT compatible.

The mainboard uses a highly integrated Slot 1 chipset with

3D video inside that is built-in a high performance 64-bit
3D AGP Graphics Accelerator with 8MB frame buffer

shared from system memory. It supports the PCI/ISA and
Green standards, it provides the Host/AGP bridge, and
integrates all system control functions such as ACPI
(Advanced Configuration and Power Interface). The ACPI
provides more energy saving features for the OSPM(OS
Direct Power Management) function.

The mainboard has an onboard 3D PCI Sound to meet
PC98 Audio requirement. It is also

built-in Hardware

Monitor circuit for abnormal CPU fan speed/temperature/
voltages detection. The mainboard BIOS provides Trend’s
ChipAway Virus to ensure the entire boot process virus
free.

Chapter 1

Introduction

The advanced features of the mainboard include:

Supports Pentium® II 233~450 MHz, Celeron 266~433 MHz and
Pentium III (Katmai New Instruction) 450~500 MHz CPUs.

- supports both 66.6MHz and 100MHz FSB (Front Side Bus).

- provides CPU Plug and Play feature for faster and easier CPU
installation.

Provides 3 DIMMs for SDRAM memory modules.

- supports a maximum size of 768MB system memory.

Provides 3 PCI and 1 ISA slots.

Onboard 2 channel IDE,

- supports four IDE devices maximum.

- supports PIO, Bus Master and Ultra DMA 33/66 operation modes.

Provides ATX power connectors and features of ATX power,

- Power Button/Suspend Switch and Keyboard Power On.

- Alarm Wake Up, Modem Wake Up and Wake On LAN.

Onboard 64-bit 3D AGP Graphics Accelerator,

- AGP 2.0 spec. compliant.

- built in 8-way/16-entry setassociative GART cache for AGP

- maximum 8MB frame buffer share from system memory.

- high resolution graphic modes up to 1600 x 1200.
Onboard PCI Sound meets PC98' specifications,

- full duplex playback and recording, built-in 16-bits CODEC.

- HRTF 3D positional audio, supports both Direct Sound 3D® &
A3D® interfaces, and support four channel speakers mode.

- supports Windows 3.1/95/98 and Windows NT 4.0.

- built-in 32 ohm earphone buffer and 3D surround.

Key Features

Introduction 1

- supports MPU-401 Game/Midi port and legacy audio SB16.

- downloadable Wave-table Synthesizer support Direct Music®.

- Digital Audio Interface(SPDIF) IN/OUT up to 24-bit stereo
44KHz sampling rate voice and measured 120dB audio quality.

- Stereo Mixer supports analog mixing from CD-Audio, Line-In,
and digital mixing from voice, FM/Wave-table and digital CD­ Audio.

Onboard Multi-I/O and Peripheral interface, include:

- 1 floppy port with 1 Mb/s transfer rate.

- 2 serial ports with 16550 compatible Fast UART.

- 1 parallel port with EPP and ECP capabilities.

- 2 USB ports & PS/2 keyboard/mouse ports.

- 1 IR interface.
Built-in Hardware Monitor circuit,

- detects CPU temperature/fan speed and current voltages.

- supports optional Intel LANDesk Client Manager.
Onboard 2M Flash ROM supports complete ACPI and Legacy

PMU, and is fully compatible with PC97 and PC98.

- provides Plug & Play function which detects the peripheral
devices and expansion cards automatically.

- provides Trend’s ChipAway Virus to ensure the entire boot
process is virus free, no installation and configuration worries.

Bundled PC-cillin98 (OEM) provides automatic virus protection
for Windows 95/98 and the Internet.

Dimension: ATX Form Factor, 24.4cm(L) x 19cm(W).

2 Chapter 1

Introduction 3

Unpacking the Mainboard & Static
Electricity Precautions

This Mainboard package contains the following items:

1. This Mainboard and the Device Driver

2. The Slot1 holder and AT cables

3. This UserÕs Guide

4.

Optional Digital Audio cables/bracket

The mainboard is easily damaged by static electricity.
Follow the precautions below while unpacking or
installing the mainboard.

1. Do not remove the mainboard from its original
package until you are ready to install it.

2. Frequently ground yourself to discharge any static
electric charge that may build up in your body
while working on installation and/or
configuration. For example, you may ground
yourself by grasping an unpainted portion of the
systemÕs metal chassis.

3. Remove the mainboard from its anti-static
packaging and place it on a grounded surface,
component side up.

4. Handle the mainboard by its edges or by the
mounting bracket to avoid touching its
components.

5. Check the mainboard for damage. If any integrated
circuit appears loose, press carefully to seat it
firmly in its socket.

6. Do not apply power if the mainboard appears
damaged. If there is damage to the board contact
your dealer immediately.

Notice :
Make sure the CMOS Clear jumper is set to
Normal Mode before use.
The shipped mainboard is set to Clear CMOS
that will be not boot the system.
See CMOS Clear Selector section.

Chapter 2

Hardware Configuration

Before you install the mainboard into the system
chassis, you may find it convenient to first configure
the mainboardÕs hardware. This chapter describes how
to set jumpers and install memory modules, and where
to attach components.