PCchips M756T User manual

Mainboard User’s 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, Pentium-II, Pentium-III, MMX, and Celeron are
registered trademarks of Intel Corporation.
Microsoft, MS-DOS and Windows 95/98/NT/2000 are registered
trademarks of Microsoft Corporation.
PC-cillin and ChipAwayVirus are trademarks of Trend Micro Inc.
AMI is a trademark of American Megatrends Inc.
A3D is a registered trademark of Aureal Inc.
SuperVoice is a registered trademark of Pacific Image
Communications Inc.
MediaRing Talk is a registered trademark of MediaRing Inc.
3Deep is a registered trademark of E-Color Inc.
Other names used in this publication may be trademarks and are
acknowledged.
Copyright © 2001
All Rights Reserved
M756T+ Series, V5.3
S63X/April 2001

Mainboard User’s Manual
II
Notice:
1. Please insert the Slot-1 card shipped with this product to the
SLOT1 as below, if you installed a Socket-370 processor on
the mainboard.
2. Please avoid to do “Clear CMOS” and “reFlash BIOS”
operations simultaneously.
3. If the user needs to do the above operations simultaneously, the
user must to reprogram the LAN ID, and its procedure is as
follows:
a. You may find the LAN ID on the motherboard at least.
b. You may find the programming utility (EE.ZIP) on our
Web site –http://www.pcchips.com.tw/bios.html or on the
Driver CD disc (\LAN\SiS900\Utility\).
c. Please follow the “README.TXT” (After unzipping
EE.ZIP or under the directory \LAN\SiS900\Utility\)
instruction to reprogram your LAN ID.

Mainboard User’s Manual
III
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
Install A CPU.....................................................................9
Install Memory.................................................................12
Setting Jumper Switches...................................................13
Install the Mainboard........................................................15
Install the Extension Brackets...........................................16
Optional Extension Brackets.............................................17
Install Other Devices........................................................18
Expansion Slots................................................................20
Chapter 3: BIOS Setup Utility..................................................21
Introduction .....................................................................21
Running the Setup Utility..................................................22
Standard CMOS Setup Page..............................................23
Advanced Setup Page.......................................................24
Power Management Setup Page.........................................26
PCI / Plug and Play Setup Page.........................................28
Load Optimal Settings ......................................................29
Load Best Performance Settings........................................29
Features Setup Page..........................................................30
CPU PnP Setup Page........................................................32
Hardware Monitor Page....................................................33
Change Password .............................................................34
Exit .................................................................................34
Chapter 4: Software & Applications..........................................35
Introduction .....................................................................35
Installing Support Software...............................................35
Installing Under Windows 98............................................37

Mainboard User’s Manual
IV

1: Introduction
1
Chapter 1
Introduction
This mainboard has a Slot 1 processor socket for an Intel SEPP
Celeron,Pentium II or III CPUs. It also has aSocket 370, which
uses an Intel PPGA/ FCPGA Celeronor FCPGA Pentium-III
processor. You can install any one of these processors on the
mainboard.
This mainboard supports front-side bus speeds of 66MHz,
100MHzor 133MHz.
This mainboard uses the GFXcel chipset which provides CPU
Plug & Play through firmware, integrates a 128-bit AGP
Graphics Accelerator. The mainboard has a built-in AC97
Codec, provides an AMR(Audio Modem Riser) slot to support
Audio and Modem application, and has a built-in 10BaseT/
100BaseTX Network Interface. In addition, the mainboard has an
extended set of ATX I/O Ports including PS/2 keyboard and
mouse ports, two USB ports, a parallel port, a serial port and a
VGA port.
This mainboard has all the features you need to develop a powerful
multimedia workstation that is network ready, and has built-in
communications. The board is micro-ATX size and has power
connectors for an ATX power supply.
Caution:
??Cyrix III 133MHz FSB CPUs do not support, please refer to page 9.
??
You cannot install two processors simultaneously on this mainboard.

Mainboard User’s Manual
2
Key Features
The key features of this mainboard include:
Slot-1 Processor Support
? ? Pentium III, Pentium II and SEPP CeleronCPUs are
supported
? ? Supports 66MHz, 100MHz or 133MHz Front-Side Bus
Socket-370 Processor Support
? ? Supports PPGA/FCPGA Celeronand FCPGA Pentium
III CPUs
? ? Supports 66MHz, 100MHz or 133MHz FSB
All processors are automatically configured using firmware and a
synchronous/asynchronous Host/DRAM Clock Scheme.
Memory Support
? ? Two DIMM slots for 168-pin SDRAM memory modules
? ? Support for 66MHz, 100MHz, & 133MHz memory bus
? ? Maximum installed memory is 2 x 512MB = 1 GB
Expansion Slots
? ? Two 32-bit PCI slots
? ? One AMR slot for a special audio/modem riser card
Onboard IDE channels
? ? Primary and Secondary PCI IDE channels
? ? Support for PIO (programmable input/output) modes
? ? Support for Multiword DMA modes
? ? Support for Bus Mastering and Ultra DMA 33/66 modes
Power Supply and Power Management
? ? ATX power supply connector
? ? ACPI and previous PMUsupport, suspend switch,
keyboard power on/off
? ? Supports Wake on Modem, Wake on LAN and Wake on
Alarm

1: Introduction
3
Built-in Graphics System
? ? Onboard 128-bit 2D/3D 100MHz Host interface AGP
Graphics Accelerator Complies with AGP V2.0
? ? Shared memory architecture allows a maximum of 64 MB
main memory to act as frame buffer
? ? Supports high resolutions up to 1920x1200 16M colors, up
to 2048x2048 Texture size and Virtual screen up to
4096x4096
? ? Supports hardware DVD Accelerator
AC97 Codec
? ? Compliant AC97 2.1 specification
? ? Supports 18-bit ADC (Analog Digital Converter) and DAC
(Digital Analog Converter) as well as 18-bit stereo full-
duplex codec
Onboard I/O Ports
? ? Provides PC99 Color Connectors for easy peripheral device
connections
? ? Floppy disk drive connector with 1Mb/s transfer rate
? ? One serial port with 16550-compatible fast UART
? ? One parallel port with ECP and EPP support
? ? Two USB ports and optional two USB ports module
? ? Two PS/2 ports for keyboard and mouse
? ? One infrared port header for optional module
Hardware Monitoring
? ? Built-in hardware monitoring for CPU & System
temperatures, fan speeds and mainboard voltages
Built-in Ethernet LAN
? ? 10BaseT/100BaseTX Ethernet LAN
? ? LAN controller integrates Fast Ethernet MAC and PHY
compliant with IEEE802.3u 100BASE-TX, 10BASE-T and
ANSI X3.263 TP-PMD standards
? ? Compliant with ACPI 1.0 and the Network Device Class
Power Management 1.0

Mainboard User’s Manual
4
? ? High Performance provided by 100Mbps clock generator
and data recovery circuit for 100Mbps receiver
Onboard Flash ROM
? ? Automatic CPU and board configuration
? ? Supports Plug and Play configuration of peripheral devices
and expansion cards
? ? Built-in virus protection using Trend’s ChipAwayVirus
provides boot process virus protection.
Bundled Software
? ? PC-Cillin2000 provides automatic virus protection under
Windows 95/98/2000/NT
? ? SuperVoice is data, fax and voice communication software
? ? MediaRing Talkprovides PC to PC or PC to Phone
internet phone communication
? ? 3Deep delivers the precise imagery and displays accurate
color in your monitor
? ? WinDVD2000 is a DVD playback applic ation (optional)
Dimensions
? ? Micro-ATX form factor (24.4cm x 19cm)

1: Introduction
5
Package Contents
Attention: This mainboard series includes four different models.
They are M756LMRT+ (LAN/Modem Ready), M756LRT+ (LAN
Ready), M756MRT+ (Modem Ready) and M756T+ (without LAN
& Modem).
Please contact your local supplier for your purchase model.
Each model will support different specification, list as below:
Model Specification
M756LMRT+ Onboard LAN header (LAN1), LAN
extension bracket and an AMR v.90 56K
Fax/Modem card
M756LRT+ Onboard LAN header (LAN1) and LAN
extension bracket
M756MRT+ Support an AMR v.90 56K Fax/Modem card
M756T+ ---
Your mainboard package ships with the following items:
?? The mainboard
?? This User’s Guide
?? 1 UDMA/66 IDE cable
?? Floppy disk drive cable
?? Support software on CD-ROM disk
Optional Accessories
You can purchase the following optional accessories for this
mainboard.
?? Extended USB module

Mainboard User’s Manual
6
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.

1: Introduction
7
Chapter 2
Mainboard Installation
To install this mainboard in a system, follow the procedures in this
chapter:
?? Identify the mainboard components
?? Install a CPU
?? Install one or more system memory modules
?? Verify that any jumpers or switches are set correctly
?? Install the mainboard in a system chassis (case)
?? Connect any extension brackets or cables to the mainboard
connector headers
?? Install any other devices and make the appropriate connections
to the mainboard connector headers.
Note:
1. Before installing this mainboard, make sure jumper JP7 is set
to Normal, the default setting is set to Clear CMOS. See this
chapter for information on locating JP7 and the setting options.
2. When installing this mainboard, make sure jumper JP9 is set to
correct setting for the installed CPU. See this chapter for
information on locating JP9 and the setting options.
3. Never connect power to the system during installation. Doing
so may damage the mainboard.

Mainboard User’s Manual
8
Mainboard Components
Use the diagram below to identify the major components on the
mainboard.
Note: Any jumpers on your mainboard that do not appear in
thisillustration are for testing only.
I/O Ports
The illustration below shows a side view of the built-in I/O ports on
the mainboard.
PS/2 Mouse
PS/2 Keyboard
Parallel Port Game/MIDI Port
Serial Port COM1/3
USB Ports
Microphone Jack
Line-Out Jack
VGA Port
Line-In Jack
LAN Port

1: Introduction
9
Install A CPU
This mainboard has a Slot-1 CPU socket for any Slot-1 processor
cartridge including the Pentium-III, Pentium-II and SEPP Celeron.
It also has a Socket-370 which supports PPGA/FCPGA Celeron,
FCPGA Pentium-III processor. You can install either a Slot 1
processor or a Socket. You cannot install both a Socket-370 and
a Slot-1 CPU.
Do not try to install a Socket 7 processor in the Socket-370. A
Socket 7 processor such as the Pentium-MMX, or the AMD K5/K6
does not fit in the Socket 370.
The following list notes the processors that are currently supported
by this mainboard.
Pentium III: Slot-1, 450~866MHz, FSB: 100MHz/133MHz
Pentium II: Slot-1, 350~450MHz, FSB: 100MHz;
233~333Mhz, FSB: 66MHz
SEPP Celeron: Slot-1, 266~433MHz, FSB: 66MHz
PPGA/FCPGA Celeron: Socket-370, 300~766MHz, FSB: 66
MHz
FCPGA Pentium III: Socket-370, 500M~1.13GHz,
FSB: 100MHz/133MHz
Notice:
1. The default setting of this mainboard does NOT support Cyrix III
CPUs.
2. If the user wants the M/B to work with Cyrix III CPU, two capacitors
located as Figure-A and B must be taken out. However, the M/B may
NOT support Intel’s CPU any more after removing those two
capacitors.
Figure-A
The capacitor on the back of Socket-370
Figure-B
The capacitor C74

Mainboard User’s Manual
10
Installing a Slot-1 Processor Cartridge CPU
1. Locate Slot-1 and FAN1 on the mainboard.
2. The Slot-1 is installed with a retention module. The upright
arms of the module are folded down for shipping. Raise the
arms so that they are in the upright position.
3. Slide the CPU cartridge into the module arms. Follow the
instructions that come with the CPU. The edge connector on
the CPU cartridge has a notch so that it only fits into the Slot-1
in the correct way.
4. Locate the cooling fan power supply FAN1. Connect the cable
from the processor cartridge cooling fan to FAN1.
5. On this mainboard, you can configure the processor by entering
the correct settings in the BIOS setup utility.
Slot
-
1 has pre
-
installed retention
module. The upright arms are
folded down for shipping.
FAN1

1: Introduction
11
Installing a Socket-370 Processor
A PPGA/FCPGA processor install into the ZIF (Zero Insertion
Force) Socket-370 on the mainboard.
1. Locate the Socket-370 and FAN1. Pull the locking lever out
slightly from the socket and raise it to the upright position.
2. On the processor, identify the Pin-1 corner by its beveled edge.
3. On the Socket-370, identify the Pin-1 corner. The Pin-1 corner
is at the end of the locking lever when it is locked.
4. Match the Pin-1 corners and insert the processor into the
socket. No force is required and the processor should drop into
place freely.
5. Swing the locking lever down and hook it under the catch on
the side of the socket. This secures the CPU in the socket.
6. All PPGA/FCPGA processors should be installed with a
combination heatsink/cooling fan, connect the cable from the
fan to the CPU fan power connector FAN1.
Pin-1 Corner
Socket-370
FAN1

Mainboard User’s Manual
12
Install Memory
The mainboard has two DIMM sockets for system memory
modules. You must install at least one memory module in order to
use the mainboard.
You must install the first memory module in the DIMM1 socket
to provide shared memory to the onboard VGA display
circuitry.
For this mainboard, you must use 168-pin, 3.3V unbuffered
SDRAM memory modules. If the installed CPU uses a 100MHz
system bus, you must use PC100 or PC133 memory. If the installed
CPU uses a 66MHz system bus, you must use PC66 memory. You
can install any size memory module from 16 MB to 512MB, so the
maximum memory size is 2 x 512MB = 1GB.
The edge connectors on the memory modules have cut outs, which
coincide with spacers in the DIMM sockets so that memory
modules can only be installed in the correct orientation.
To install a module, push the retaining latches at either end of the
socket outwards. Position the memory module correctly and insert
it into the DIMM socket. Press the module down into the socket so
that the retaining latches rotate up and secure the module in place
by fitting into notches on the edge of the module.
DIMM1
DIMM2

1: Introduction
13
Setting Jumper Switches
Jumpers are sets of pins which 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.
Jumper JP4: Onboard LAN Wakeup Selector
Use this 3-pin jumper to enable or disable the onboard LAN
Wakeup function.
Function Jumper Setting
Disable Wake On LAN Short Pins 1-2
Enable Wake On LAN Short Pins 2-3
Jumper JP6: Keyboard Power On Selector
If you enable the keyboard power on feature, you can use hot keys
on your keyboard as a power on/off switch for the system.
Function Jumper Setting
Disable Keyboard Power On Short Pins 1-2
Enable Keyboard Power On Short Pins 2-3
Note JP4 & JP6: The system must provide 1A on the +5VSB
(+5V Standby) signal before using these two functions.
JP6
1
JP7
1
JP9
JP4
1
1

Mainboard User’s Manual
14
Jumper JP7: Clear CMOS Memory
Use this jumper to 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.
Function Jumper Setting
Normal Operation Short Pins 2-3
Clear CMOS Memory Short Pins 1-2
Jumper JP9: FCPGA Pentium-III CPU Selector
Use this 3-pin jumper to select the installed CPU that is Socket-370
FCPGA CPUs or not. Be careful, the error setting may damage
the CPU.
Function Jumper Setting
Slot-1/PPGA CPUs Short Pins 1-2
Socket-370 FCPGA CPUs Short Pins 2-3

1: Introduction
15
Install the Mainboard
Install the mainboard in a system chassis (case). The board is a
micro-ATX size mainboard with a twin-tier of I/O ports. You can
install this mainboard in any ATX case. Special micro-ATX cases
are also available with a reduced number of expansion slot bays
and a smaller power supply unit. Ensure that 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.
Connect the power connector from the power supply to the ATX
Power connector on the mainboard.
If there is a cooling fan installed in the system chassis, connect the
cable from the cooling fan to the FAN2 fan power connector on the
mainboard.
Connect the case switches and indicator LEDs to the J8switch and
LED connector header. See the illustration below for a guide to the
J8 connector pin assignments.
22
21
Power LED
Pins 2-4-6
Speaker
Pins 1-3-5-7
Keylock
Pins 8-10
HDD LED
Pins 15-16
2
1
Reset Switch
Pins 17-18
Power Button/Suspend
Switch Pins 21-22
ATX Power
J8 FAN2
ACPI LED
Pins19-20

Mainboard User’s Manual
16
Install the Extension Brackets
The extension brackets are used to connect features on the
mainboard to external connectors that can be attached to the system
chassis. Follow the steps below to install the extension brackets.
Note:All the ribbon cables used on the extension brackets have a
red stripe on the Pin-1 side of the cable.
LAN Adapter Extension Bracket
This bracket supports an RJ45 network connector and connects to
the built in LAN header on the mainboard.
1. On the mainboard, locate the LAN header for this bracket.
2. Plug the cable from the bracket into the LAN header.
3. In the system chassis, remove a blanking plate from one of the
expansion slots and install the extension bracket in the slot. Use
the screw that held the blanking plate in place to secure the
extension bracket.
LAN Extension
Bracket
LAN Header
1