PCchips M938 Series User manual

This publication, including all photographs, illustrations and
software, is protected under international copyright laws, with all
rights reserved. Neither this manual, nor any of the material
contained herein, may be reproduced without the express written
consent of the manufacturer.
The information in this document is subject to change without
notice. The manufacturer makes no representations or warranties
with respect to the contents hereof and specifically disclaims any
implied warranties of merchantability or fitness for any particular
purpose. Further, the manufacturer reserves the right to revise this
publication and to make changes from time to time in the content
hereof without obligation of the manufacturer to notify any person
of such revision or changes.
Trademarks
IBM, VGA, and PS/2 are registered trademarks of International
Business Machines.
Intel, Pentium/II/III, Pentium 4, Celeron and MMX are registered
trademarks of Intel Corporation.
Microsoft, MS-DOS and Windows 98/ME/NT/2000/XP are
registered trademarks of Microsoft Corporation.
PC-cillin is a registered trademark of Trend Micro Inc.
AMI is a registered trademark of American Megatrends Inc.
A3D is a registered trademark of Aureal Inc.
MediaRing Talk is a registered trademark of MediaRing Inc.
3Deep is a registered trademark of E-Color Inc.
SiS is a trademark of Silicon Integrated System Corporation.
Other names used in this publication may be trademarks and are
acknowledged.
Copyright © 2003
All Rights Reserved
M938 Series, V3.1
S645DX/May 2003

Notice:
Owing to Microsoft’s certifying schedule is various to every
supplier, we might have some drivers not certified yet by
Microsoft. Therefore, it might happen under Windows XP that a
dialogue box (shown as below) pop out warning you this
software has not passed Windows Logo testing to verify its
compatibility with Windows XP. Please rest assured that our RD
department has already tested and verified these drivers. Just
click the “Continue Anyway” button and go ahead the
installation.
II

Table of Contents
Chapter 1: Introduction....................................................................1
Key Features............................................................................2
Package Contents.....................................................................5
Static Electricity Precautions...................................................6
Pre-Installation Inspection.......................................................6
Chapter 2: Mainboard Installation...................................................7
Mainboard Components ..........................................................8
I/O Ports...................................................................................8
Installing the Processor............................................................9
Installing Memory Modules ..................................................10
Setting Jumper Switches........................................................11
Install the Mainboard.............................................................12
Connecting Optional Devices................................................13
Install Other Devices.............................................................15
Expansion Slots ....................................................................17
Chapter 3: BIOS Setup Utility.......................................................18
Introduction ...........................................................................18
Running the Setup Utility...........…………………………...19
Standard CMOS Setup Page..................................................20
Advanced Setup Page............................................................21
Power Management Setup Page............................................24
PCI/Plug and Play Setup Page...............................................25
Load Optimal Settings...........................................................26
Load Best Performance Settings............................................26
Features Setup Page...............................................................27
CPU PnP Setup Page.............................................................28
Hardware Monitor Page.........................................................29
Change Password...................................................................30
Exit ........................................................................................30
Chapter 4: Software & Applications .............................................31
Introduction ...........................................................................31
Installing Support Software...................................................32
Bundled Software Insatllation...............................................34
Appendis:Hyper Threading CPU...........................................35
III

IV

Chapter 1
Introduction
This mainboard has a Socket-478 processor socket for Intel
Pentium 4/Hyper Threading Technology processors with front-
side bus (FSB) speeds up to 533 MHz. Hyper Threading
Technology, designed to take advantage of the multitasking
features in Windows XP, gives you the power to do more things at
once.
This mainboard integrates the SiS645DX/650GX/651 Northbridge
along with SiS962L Southbridge chipsets that supports built-in
AC97 Codec , 2DDR modules up to 2GB system memory, and
provides Ultra DMA 33/66/100/133 function. These chipsets’
function is detailed as the Chipset description in next section. This
mainboard integrates a 256-bit 3D/2D Graphics Engine, Video
Accelerator and Advanced Hardware Acceleration
MPEGI/MPEGII Video Decoder for the Intel Pentium 4 series
based PC systems. It has the external AGP slot with AGP 4X
266MHz capability, one CNR (Communications and Networking
Riser) slot, and built-in 10BaseT/100BaseTX Network
Interface(optional). In addition, there is a full set of I/O Ports
including PS/2 keyboard and mouse ports, one serial port, one
VGA port, one parallel port, and maximum six USB2.0 ports –
four back-panel ports and onboard USB header JUSB1 providing
two extra ports by connecting the Extended USB Module to the
mainboard.
This mainboard is ATX size and has power connectors for an ATX
power supply and measures 305 x 190mm.
Note: You must initiate the HT CPU function through
BIOS setup. It is strongly recommended you refer
to the Appendix (page 35) for relative details.

Key Features
The key features of this mainboard include:
Socket-478 Processor
♦ The PGA Socket 478
♦ Supports Intel Pentium 4 series CPU with/without Hyper
Threading Technology
♦ Supports up to 533 MHz Front-Side Bus
Chipset
There are SiS645DX/650GX/651 Northbridge and SiS962L
Southbridge in this chipset in accordance with an innovative and
scalable architecture with proven reliability and performance. Here
is a list of the chipset arrangement and their respective features:
Northbridge Southbridge Function
SiS645DX 962L CPU FSB: 533MHz, Ultra DMA
ATA133, DDR333, USB2.0
Supports Hyper-Threading
CPU, without VGA
SiS650GX SiS962L CPU FSB: 533MHz, Ultra DMA
ATA133, DDR266, USB2.0
SiS651 SiS962L CPU FSB: 533MHz, Ultra DMA
ATA133, DDR333, USB2.0
Supports Hyper-Threading
CPU
Memory Support
♦ Two 184-pin DIMM slots for DDR memory modules
♦ Maximum installed memory is 2GB
Expansion Slots
♦ One CNR slot
♦ One 2x/4xAGP slot for AGP 2.0-compliant interface
♦ Five 32-bit PCI slots for PCI 2.2-compliant bus interface
Onboard IDE channels
♦ Primary and Secondary PCI IDE channels
♦ Support for PIO (programmable input/output) modes
2

♦ Support for Multiword DMA modes
♦ Support for Bus Mastering and Ultra DMA ATA
33/66/100/133 modes
Power Supply and Power Management
♦ ATX power supply connector
♦ Meets ACPI 1.0b and APM 1.2 requirements, keyboard
power on/off
♦ Supports RTC Alarm, Wake On Modem, AC97 Wake-Up
and USB Wake-Up
Onboard VGA
♦ Supports AGP V2.0 Compliant
♦ Supports AGP 4X/2X interface and Fast Write Transaction
♦ Supports high performance & high quality 3D
Accelerator—A built-in 256-bit 3D engine, up to 143 MHz
3D engine clock speed
♦ Supports high performance 128-bit 2D Accelerator—Ultra-
AGPIITM 2GB/s data read for all 2D engine functions
♦ Maximum Share Memory size is 64MB
AC97 Audio Codec
♦ 6-CH hardware architecture allows multi-channel south
bridge to playback 6CH audio
♦ IntelAC’97 (REV. 2.2) compatible, meeting Microsoft
PC2001 requirements
♦ Built-in earphone buffer and internal PLL, the latter saving
additionsl crystal
♦ Line-in/rear out share the same jack; Center/bass share the
MIC jack
♦ Digital S/PDIF OUT Support
♦ CRL3D: HRTF based BS3D compatible audio engine
Built-in Ethernet LAN (optional)
♦ 10Base-T/100Base-TX Physical Layer Solution
♦ Dual Speed – 100/10 Mbps
♦ MII Interface to Ethernet Controller/Configuration & Status
♦ Auto Negotiation: 10/100, Full/Half Duplex
3

♦ Meet All Applicable IEEE802.3, 10Base-T and 100Base-
TX Standards
Onboard I/O Ports
The mainboard has a full set of I/O ports and connectors:
♦ Two PS/2 ports for mouse and keyboard
♦ One serial port
♦ One parallel port
♦ One VGA port
♦ Four back-panel USB2.0 ports and extra two USB2.0 ports
(onboard USB header JUSB1)
♦ Audio jacks for microphone, line-in and line-out
Hardware Monitoring
♦ Built-in hardware monitoring for CPU & System
temperatures, fan speeds and mainboard voltages.
Onboard Flash ROM
♦ Supports Plug and Play configuration of peripheral devices
and expansion cards
USB 2.0
♦ Compliant with Universal Serial Bus Specification
Revision 2.0
♦ Compliant with Intel’s Enhanced Host Controller
Interface Specification Revision 0.95
♦ Compliant with Universal Host Controller Interface
Specification Revision 1.1
♦ PCI multi-function device consists of two UHCI Host
Controller cores for full-/low-speed signaling and one
EHCI Host Controller core for high-speed signaling
♦ Root hub consists 4 downstream facing ports with
integrated physical layer transceivers shared by UHCI and
EHCI Host Controller
♦ Support PCI-Bus Power Management Interface
Specification release 1.1
♦ Legacy support for all downstream facing ports
4

Bundled Software
♦ PC-Cillin2002 provides automatic virus protection under
Windows 98/ME/NT/2000/XP
♦ MediaRing Talk provides PC to PC or PC to Phone
internet phone communication
♦ 3Deep delivers the precise imagery and displays accurate
color in your monitor
♦ PC DJ is a dual-MP3 player that enables users to actually
mix music right on their own personal computers.
♦ Adobe Acrobat Reader V5.0 is the software to help users
read .PDF files.
Dimensions
♦ ATX form factor 305 x 190mm
Package Contents
Attention: This mainboard serial has three models,
M938HLU(SiS651 NB+ SiS962L SB, Hyper-Threading CPU,
LAN, USB2.0), M938HLUX(SiS645DX NB+ SiS962L SB,
Hyper-Threading CPU, LAN, USB2.0, without VGA), and
M938LU(SiS650GX NB+ SiS962L SB, LAN, USB2.0). Please
contact your local supplier for more information about your
purchased model. Each model will support different specification
listed as below:
Model Specification
M938HLU SiS651 NB+ SiS962L SB, Hyper-Threading
CPU, onboard LAN PHY chip, RJ-45 LAN
connector, USB2.0
M938HLUX SiS645DX NB+ SiS962L SB, Hyper-
Threading CPU, onboard LAN PHY chip, RJ-
45 LAN connector, USB2.0, without VGA
M938LU SiS650GX NB+ SiS962L SB, onboard LAN
PHY chip, RJ-45 LAN connector, USB2.0
Your mainboard package contains the following items:
 The mainboard
 The User’s Manual
5

 One diskette drive ribbon cable (optional)
 One IDE drive ribbon cable
 Software support CD
Optional Accessories
You can purchase the following optional accessories for this
mainboard.
 Extended USB module
 Card Reader (You can buy your own Card Reader from the
third party, but please contact your local Card Reader vendor
on any issues of the specification and compatibility.)
Static Electricity Precautions
Components on this mainboard can be damaged by static
electricity. Take the following precautions when unpacking the
mainboard and installing it in a system.
1. Keep the mainboard and other components in their original
static-proof packaging until you are ready to install them.
2. During installation, wear a grounded wrist strap if possible. If
you don’t have a wrist strap, discharge static electricity by
touching the bare metal of the system chassis.
3. Handle the mainboard carefully by the edges. Avoid touching
the components unless it is absolutely necessary. During
installation put the mainboard on top of the static-protection
packaging it came in with the component side facing up.
Pre-Installation Inspection
1. Inspect the mainboard for damage to the components and
connectors on the board.
2. If you suspect that the mainboard has been damaged, do not
connect power to the system. Contact your mainboard vendor
and report the damage.
6

Chapter 2
Mainboard Installation
To install this mainboard in a system, please follow the instructions
in this chapter:
 Identify the mainboard components
 Install a CPU
 Install one or more system memory modules
 Verify that all jumpers or switches are set correctly
 Install the mainboard in a system chassis (case)
 Connect any extension brackets or cables to connecting
headers on the mainboard
 Install other devices and make the appropriate connections to
the mainboard connecting headers.
Note:
1. Before installing this mainboard, make sure jumper JP2 is
under Normal setting. See this chapter for information about
locating JP2 and the setting options.
2. Never connect power to the system during installation;
otherwise, it may damage the mainboard.

Mainboard Components
Use the diagram below to identify the major components on the
mainboard.
Note: Any jumpers on your mainboard not appearing in the
illustration above are for testing only.
I/O Ports
The illustration below shows a side view of the built-in I/O ports
on the mainboard.
(
o
p
tional
)
(shared
with
READ1
)
8

PS/2 Mouse Use the upper PS/2 port to connect a PS/2
pointing device.
PS/2 Keyboard Use the lower PS/2 port to connect a PS/2
keyboard.
LPT1 Use LPT1 to connect printers or other
parallel communications devices.
COM1 Use the COM port to connect serial devices
such as mice or fax/modems. COM1 is
identified by the system as COM1.
VGA Use the VGA port to connect VGA devices.
LAN Port
(optional) Connect an RJ-45 jack to the LAN port to
connect your computer to the Network.
USB Ports Use the USB ports to connect USB devices.
Note: The lower USB port located beside the
VGA port is shared with the READ1 connector.
Audio Ports Use the three audio ports to connect audio
devices. The first jack is for stereo Line-In
signal. The second jack is for stereo
Line-Out signal. The third jack is for
Microphone.
Installing the Processor
This mainboard has a Socket 478 processor socket. When choosing
a processor, consider the performance requirements of the system.
Performance is based on the processor design, the clock speed and
system bus frequency of the processor, and the quantity of internal
cache memory and external cache memory.
CPU Installation Procedure
Follow these instructions to install the CPU:
1. Unhook the CPU socket’s locking lever by pulling
it away from socket and raising it to the upright
position.
2. Match the pin 1 corner of CPU socket to the one of
processor, and insert the processor into the socket.
Do not use force.
3. Push the locking lever down and hook it under the
latch on the edge of socket.
9

4. Apply thermal grease to the top of the CPU.
5. Lower the CPU fan/heatsink unit onto the CPU and
CPU socket, and then use the retention module
clamps to snap the fan/heatsink into place.
6. Plug the CPU fan power cable into the CPU
cooling fan power supply (CPUFAN) on the
mainboard.
Installing Memory Modules
This mainboard accommodates two 184-pin 2.5V unbuffered
Double Data Rate SDRAM (DDR SDRAM) Dual Inline Memory
Module (DIMM) sockets, and supports up to 2.0 GB
of 266/333 MHz DDR SDRAM.
DDR SDRAM is a type of SDRAM that supports data transfers on
both edges of each clock cycle (the rising and falling edges),
effectively doubling the memory chip’s data throughput. DDR
DIMMs can synchronously work with 100 MHz or 133 MHz
memory bus.
DDR SDRAM provides 1.6 GB/s or 2.1 GB/s data transfer rate
depending on whether the bus is 100 MHz or 133 MHz.
DDR SDRAM uses additional power and ground lines and requires
184-pin 2.5V unbuffered DIMM module.
DIMM1
DIMM2
Installation Procedure
These modules can be installed with up to 2 GB system memory.
Refer to the following steps to install the memory module.
10

1. Push the latches on each side of the DIMM socket
down.
2. Align the memory module with the socket. The
DIMM sockets are keyed with notches and the
DIMMs are keyed with cutouts so that they can
only be installed correctly.
3. Check that the cutouts on the DIMM module edge
connector match the notches in the DIMM socket.
4. Install the DIMM module into the socket and press
it firmly down until it is seated correctly. The
socket latches are levered upwards and latch on to
the edges of the DIMM.
5. Install any remaining DIMM modules.
Setting Jumper Switches
Jumpers are sets of pins that can be connected together with
jumper caps. The jumper caps change the way the mainboard
operates by changing the electronic circuits on the mainboard. If a
jumper cap connects two pins, we say the pins are SHORT. If a
jumper cap is removed from two pins, the pins are OPEN.
1
JP2
Jumper JP2: Clear CMOS Memory
This jumper can clear the contents of the CMOS memory. You
may need to clear the CMOS memory if the settings in the Setup
Utility are incorrect and prevent your mainboard from operating.
To clear the CMOS memory, disconnect all the power cables from
the mainboard and then move the jumper cap into the CLEAR
setting for a few seconds.
11

Function Jumper Setting
Clear CMOS Short Pins 1-2
Normal Mode Short Pins 2-3
Install the Mainboard
Install the mainboard in a system chassis (case). The board is a
Micro ATX size mainboard. You can install this mainboard in an
ATX case. Ensure your case has an I/O cover plate that matches
the ports on this mainboard.
Install the mainboard in a case. Follow the instructions provided by
the case manufacturer using the hardware and internal mounting
points on the chassis.
ATX2
SW1
1
A
TXPW1
CHSFAN
1
Connect the power connector from the power supply to the
ATXPW1 connector on the mainboard. ATX2 is the CPU Vcore
power connector.
If there is a cooling fan installed in the system chassis, connect the
cable from the cooling fan to the CHSFAN fan power connector
on the mainboard.
Connect the case switches and indicator LEDs to the SW1 header.
Pin Signal Pin Signal
1 HDD_LED_P 2 FP ACPI LED
3 HDD_LED_N 4 FP ACPI LED
5 RST_SW_N 6 PW_BT_P
7 RST_SW_P 8 PW_BT_N
9 RSVD_DNU 10 KEY
12

Connecting Optional Devices
Refer to the following for information on connecting the
mainboard’s optional devices:
JUSB1
A
UDIO2
1READ1
1
1
1
1
IR1
SPK1
SPK1: Speaker Connector
Connect the cable from the PC speaker to the SPK1 header on the
mainboard.
Pin Signal Pin Signal
1 SPKR 2 NC
3 GND 4 +5V
AUDIO2: Front Panel Audio Header
This header allows the user to install auxiliary front-oriented
microphone and line-out ports for easier access.
Pin Signal Pin Signal
1 AUD_MIC 2 AUD_GND
3 AUD_MIC 4 AUD_VCC
5 AUD_FPOUT 6 AUD_RET_R
7 NC 8 KEY
9 AUD_FPOUT 10 AUD_RET_L
JUSB1: Front panel USB Connector
The mainboard has USB ports installed on the rear edge I/O port
array. Additionally, some computer cases have USB ports at the
front of the case. If you have this kind of case, use auxiliary USB
connector USB3 to connect the front-mounted ports to the
mainboard.
13

Pin Signal Pin Signal
1 VCC 2 VCC
3 DATA1- 4 DATA2-
5 DATA1+ 6 DATA2+
7 GND 8 GND
9 KEY 10 NC
1. Locate the JUSB1 header on the mainboard.
2. Plug the bracket cable onto the JUSB1 header.
3. Remove a slot cover from one of the expansion slots on the
system chassis. Install an extension bracket in the opening.
Secure the extension bracket to the chassis with a screw.
READ1: USB Card Reader Connector (optional)
This connector is for connecting internal USB card reader. You can
use a card reader to read or transfer files and digital images to your
computer. Pin Signal Pin Signal
1 VCC 2 USB-
3 USB+ 4 GND
5 KEY
The JUSBC is shared with one of the USB ports of the I/O
back panel. The USB port is located beside the serial port
connectors. See “I/O Ports” for more information.
Please check the pin assignment of the cable and the USB
header on the mainboard. Make sure the pin assignment
will match before plugging in. Any incorrect usage may
cause unexpected damage to the system. The vendor won’t
be responsible for any incidental or consequential damage
arising from the usage or misusage of the purchased
product.
IR1: Infrared Port
The infrared port allows the wireless exchange of information
between your computer and similarly equipped devices such as
printers, laptops, Personal Digital Assistants (PDAs), and other
computers.
14

Pin Signal Pin Signal
1 NC 2 KEY
3 +5V 4 GND
5 IRTX 6 IRRX
1. Locate the infrared port IR1 header on the mainboard.
2. If you are adding an infrared port, connect the ribbon cable
from the port to the IR1 header and then secure the port to an
appropriate place in your system chassis.
Install Other Devices
Install and connect other devices in the system as steps below.
FLOPPYIDE2
IDE1 1
1
1
Floppy Disk Drive
The mainboard ships with a floppy disk drive cable that can
support one or two drives. Drives can be 3.5” or 5.25” wide, with
capacities of 360K, 720K, 1.2MB, 1.44MB, or 2.88MB.
Install your drives and connect power from the system power
supply. Use the cable provided to connect the drives to the floppy
disk drive connector FLOPPY.
IDE Devices
IDE devices include hard disk drives, high-density diskette drives,
and CD-ROM or DVD-ROM drives, among others.
The mainboard ships with an IDE cable that can support one or two
IDE devices. If you connect two devices to a single cable, you
must configure one of the drives as Master and one of the drives as
Slave. The documentation of the IDE device will tell you how to
15

configure the device as a Master or Slave device. The Master
device connects to the end of the cable.
Install the device(s) and connect power from the system power
supply. Use the cable provided to connect the device(s) to the
Primary IDE channel connector IDE1 on the mainboard.
If you want to install more IDE devices, you can purchase a second
IDE cable and connect one or two devices to the Secondary IDE
channel connector IDE2 on the mainboard. If you have two
devices on the cable, one must be Master and one must be Slave.
Internal Sound Connections
If you have installed a CD-ROM drive or DVD-ROM drive, you
can connect the drive audio cable to the onboard sound system.
1
CD1
CD
2
1
When you first start up your system, the BIOS should
automatically detect your CD-ROM/DVD drive. If it doesn’t, enter
the Setup Utility and configure the CD-ROM/DVD drive that you
have installed. On the mainboard, locate the two 4-pin connectors
CD1 and CD2.
CD1 CD2
Pin Signal Pin Signal
1 GND 1 CD IN L
2 CD IN R 2 GND
3 GND 3 GND
4 CD IN L 4 CD IN R
16