MSI MS-6526 User manual

i
Version 2.0
G52-MA00604
MS-6526 (v2.X) Micro ATX Mainboard
MSI
MICRO-STAR INTERNATIONAL

ii
Manual Rev: 2.0
Release Date: April 2002
FCC-BRadioFrequencyInterferenceStatement
This equipment has been tested and found to comply with the limits for a class
B digital device, pursuant to part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference when the equip-
ment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accor-
dance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct
the interference at his own expense.
Notice 1
The changes or modifications not expressly approved by the party respon-
sible for compliance could void the user’s authority to operate the equipment.
Notice 2
Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.
VOIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU
RESEAU.
Micro-StarInternational MS-6526
Testedtocomply
withFCCStandard
ForHome orOfficeUse

iii
Edition
April 2002
Copyright Notice
The material in this document is the intellectual property of MICRO-STAR
INTERNATIONAL. We take every care in the preparation of this document,
but no guarantee is given as to the correctness of its contents. Our products
are under continual improvement and we reserve the right to make changes
without notice.
Trademarks
All trademarks are the properties of their respective owners.
Intel®and Pentium®are registered trademarks of Intel Corporation.
PS/2 and OS®/2 are registered trademarks of International Business Machines
Corporation.
Windows®95/98/2000/NT/XP are registered trademarks of Microsoft
Corporation.
Netware®is a registered trademark of Novell, Inc.
Award®is a registered trademark of Phoenix Technologies Ltd.
AMI®is a registered trademark of American Megatrends Inc.
Revision History
Revision Revision History Date
V2.0 First release April 2002

iv
1. Always read the safety instructions carefully.
2. Keep this User’s Manual for future reference.
3. Keep this equipment away from humidity.
4. Lay this equipment on a reliable flat surface before setting it up.
5. The openings on the enclosure are for air convection hence protects the
equipmentfrom overheating. DONOT COVERTHEOPENINGS.
6. Make sure the voltage of the power source and adjust properly 110/220V
before connecting the equipment to the power inlet.
7. Place the power cord such a way that people can not step on it. Do not
place anything over the power cord.
8. AlwaysUnplugthe Power Cordbefore inserting any add-oncard or module.
9. All cautions and warnings on the equipment should be noted.
10. Never pour any liquid into the opening that could damage or cause electri-
cal shock.
11. If any of the following situations arises, get the equipment checked by a
service personnel:
zThe power cord or plug is damaged.
zLiquid has penetrated into the equipment.
zThe equipment has been exposed to moisture.
zThe equipment has not work well or you can not get it work according
to User’s Manual.
zThe equipment has dropped and damaged.
zIf the equipment has obvious sign of breakage.
12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT
UNCONDITIONED,STORAGETEMPERATUREABOVE600C(1400F),IT
MAYDAMAGETHEEQUIPMENT.
Safety Instructions
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacturer.

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CONTENTS
Chapter1.GettingStarted ........................................................................ 1-1
Mainboard Specification ......................................................................1-2
Mainboard Layout ...............................................................................1-5
Quick Components Guide ....................................................................1-6
MSI Special Features ...........................................................................1-7
PCAlert™ III .................................................................................1-7
Chapter2.HardwareSetup ....................................................................... 2-1
Central Processing Unit: CPU .............................................................. 2-2
CPU Installation Procedures ......................................................... 2-2
Installing the CPU Fan ..................................................................2-3
CPU Core Speed Derivation Procedure .........................................2-4
Memory................................................................................................2-5
Introduction to DDR SDRAM....................................................... 2-5
DDR Module Combination ............................................................ 2-6
Installing DDR Modules ............................................................... 2-6
Power Supply .......................................................................................2-7
ATX 20-Pin Power Supply .............................................................2-7
ATX 12V Power Connector: JPW1 ................................................2-7
BackPanel ............................................................................................2-8
Mouse Connector ......................................................................... 2-8
Keyboard Connector .....................................................................2-9
USB Connectors ............................................................................2-9
Serial Port Connector: COM A .................................................... 2-10
VGA DB 15 Pin Connector .......................................................... 2-10
Joystick/Midi Connectors ........................................................... 2-11
Audio Port Connectors ............................................................... 2-11
RJ-45LAN Jack (Optional) .......................................................... 2-11
Parallel Port Connector: LPT1...................................................... 2-12

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Connectors......................................................................................... 2-13
Floppy Disk Drive Connector: FDD1........................................... 2-13
IrDA Infrared Module Header: IR2 .............................................. 2-13
Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-14
CD-InConnector: CD_IN1 .......................................................... 2-15
Modem-In Connector: MDM_IN1 (Optional) ............................. 2-15
SPDIF Connector: JSPDIF1 (Optional) ....................................... 2-15
Fan Power Connectors: CPUFAN1/PWR_FAN/SYS_FAN ......... 2-16
TV-Out Connector: JTV1 (Optional) ............................................ 2-17
Front Panel Connectors: JFP1 & JFP2 ......................................... 2-18
Front Panel Audio Connector: JAUDIO1 .................................... 2-19
Front USB Connectors: JUSB3/JUSB4 ........................................ 2-20
Chassis Intrusion Switch Connector: JCASE .............................. 2-21
Jumpers .............................................................................................. 2-22
Clear CMOS Jumper:JBAT1 ........................................................ 2-22
BIOS Write-Protect Jumper: BIOS_WP ....................................... 2-23
Slots ................................................................................................... 2-24
PCI (Peripheral Component Interconnect) Slots.......................... 2-24
CNR(Communication NetworkRiser) ......................................... 2-24
PCI Interrupt Request Routing .................................................... 2-25
Chapter3. AWARD® BIOSSetup ............................................................. 3-1
Entering Setup......................................................................................3-2
Control Keys ................................................................................. 3-2
Getting Help .................................................................................. 3-3
The Main Menu ................................................................................... 3-4
Standard CMOS Features .................................................................... 3-6
Advanced BIOS Features .................................................................... 3-8
Advanced Chipset Features............................................................... 3-12
Integrated Peripherals ........................................................................ 3-15
Power Management Setup ................................................................. 3-19

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PNP/PCI Configurations..................................................................... 3-23
PC Health Status ................................................................................ 3-25
Frequency/Voltage Control ................................................................ 3-26
LoadFail-Safe/OptimizedDefaults ..................................................... 3-28
Set Supervisor/User Password........................................................... 3-29
Glossary ....................................................................................................G-1

Getting Started
1-1
Chapter 1. Getting Started 1
Getting Started
Thank you for purchasing the MS-6526 v2.X Micro ATX mainboard. The
MS-6526 is based on Intel®Brookdale-GL & ICH4 chipsets for optimal system
efficiency. Designed to fit the advanced Intel®Pentium®4 processors in the
478 pin package, the MS-6526 delivers a high performance and professional
desktop platform solution.
TOPICS
Mainboard Specification 1-2
Mainboard Layout 1-5
Quick Components Guide 1-6
MSI Special Features 1-7

Chapter 1
1-2
CPU
Supports socket 478 for Intel®Pentium®4/Celeron®processors.
Supports 1.3GHz to 2.4GHz or higher speed.
Chipset
Intel®Brookdale-GLGMCH chipset(760mBGA)
-FSB400MHz.
- Multiplexed AGP and Intel®DVO port interface.
- Integrated 3D/2D graphic core.
(Core frequency=200 MHz, 350 MHz integrated 24-bit RAMDAC)
- Supports PC200/266 DDR technology.
Intel®ICH4chipset (421 mBGA)
- 6 ports Hi-Speed USB (USB2.0) controller, 480Mb/sec.
- AC’97 3 Codec supported (6 channel).
- Supports both ACPI and legacy APM power management.
- Legacy free support.
MainMemory
Supports four memory banks using two 184-pin unbuffered DIMM.
Maximummemorysizeis 2GBw/oECC(1GB/slot).
Supports 2.5V DDR DIMM.
Slots
Three 32-bit Master PCI Bus slots.
One CNR (Communication Network Riser) slot.
On-BoardIDE
Dual IDE controllers integrated in ICH4.
Supports PIO, Bus Master, Ultra DMA 66/100 operation modes.
Can connect up to four IDE devices.
On-BoardPeripherals
External
- PS2 KBD + PS2 Mouse
-USB x 2 +RJ-45(LAN port)
-Parallel +Serial x 2
- Game port + Audio (Mic_in, Line_in, Line_out)
Mainboard Specification

Getting Started
1-3
Internal
- Front Panel (2 x 5 + 2 x 4) with Intel®& MSI pin-definition
- Front Audio (2 x5) with Intel®pin-definition
- Front IR with Intel®& MSI pin-definition
- Chassis Intrusion, Onboard buzzer
- IDE x 2, Floppy, ATX power connector
- TV-out pinheader (Optional)
Audio
AC’97 link controller integrated in ICH4
Two-channel software codec ALC 201A
- Compliance with AC’97 v2.2 spec.
- Meets PC 2001 audio performance requirement.
RealTekLAN(Optional)
PCI local single-chip Fast Ethernet Controller, RealTek RTL 8101L
- Integrated Fast Ethernet MAC and PHY in one chip.
- Supports 10 Mb/s and 100 Mb/s auto-negotiation operation.
- Compliance with PCI v2.2.
- Compiance with PC99 standard.
- Supports ACPI Power Management.
Intel® LAN(Optional)
Intel® 82562ET chip
- Integrated Fast Ethernet MAC and PHY in one chip.
- Supports 10 Mb/s and 100 Mb/s.
- Compliance with PCI v2.2.
- Supports ACPI Power Management.
OnboardTV-Out (Optional)
CHRONTEL CH7009chip
- Supports 1024 x 768 resolution.
Modem (Optional)
- Reserves 2 x 6 pin-out.
- Uses proprietary PCI modem card with PCTEL solution.
- Works with LAN chip (RealTek RTL 8101L).

Chapter 1
1-4
BIOS
PnP (Plug & Play) BIOS to detect peripheral devices and expansion cards
automatically.
DMI (Desktop Management Interface) function to record motherboard
specification.
Provides WOL, chassis intrusion and SMBus for system management.
Dimension
Micro-ATX Form Factor (9.6" x 9.1")
Mounting
6 mounting holes

Getting Started
1-5
Mainboard Layout
MS-6526 v2.X Micro ATX Mainboard
BATT
+
Intel
ICH4
BIOS
ATX
PowerSupply
JFP1 JFP2
SYS_FAN
CPUFAN1
PWR_FAN
IDE1
IDE2
CD_IN1
JCASE
Winbond
W83627HF
MDM_IN1
JSPDIF1
RealTek
TRL8100L
(Optional)
Chrontel
CH7009A-T
(Optional)
Top : Parallel Port
Bottom:
COM A
VGA Port
Top: LAN Jack
Bottom: USB
ports
Intel
DA82562ET
(Optional)
JPW1
Top :
Game port
Bottom:
Line-Out
Line-In
Mic
FDD1
CNR
PCI Slot 1
PCI Slot 3
PCI Slot 2
Top : mouse
Bottom: keyboard
DDR1
DDR2
JBAT1
JAUDIO1
BIOS_WP
IR2
JTV1
(Optional)
Intel
845GL
Chipset

Chapter 1
1-6
Quick Components Guide
Component Function Reference
Socket 478 Installing CPU See p. 2-2
DDR1~2 Installing DDR modules See p. 2-5
ATX Power Connector Installing power supply See p. 2-7
USB Connectors Connecting to USB devices See p. 2-9
COM A Serial port connector See p. 2-10
VGA Connector Connecting to VGA monitors See p. 2-10
RJ-45 LAN Jack Connecting to LAN devices See p. 2-11
LPT1 Parallel port connector See p. 2-12
FDD1 Floppy disk drive connector See p. 2-13
IR2 IrDA infrared module header See p. 2-13
IDE1~ IDE2 Hard disk connectors See p. 2-14
CD_IN1 CD-in connector See p. 2-15
MDM_IN1 Modem-in connector See p. 2-15
JSPDIF1 SPDIF connector See p. 2-15
CPUFAN1/PWR/SYS_FAN Fan power connectors See p. 2-16
JTV1 TV-out connector See p. 2-17
JFP1/JFP2 Front panel connector See p. 2-18
JAUDIO1 Front panel audio connector See p. 2-19
JUSB3/JUSB4 Front USB connector See p. 2-20
JCASE Chassis intrusion switch See p. 2-21
JBAT1 Clear CMOS jumper See p. 2-22
BIOS_WP BIOS write-protect jumper See p. 2-23
PCI Slots Connecting to expansion cards See p. 2-24
CNR Slot Connecting to expansion cards See p. 2-24

Getting Started
1-7
MSI Special Features
PC Alert™ III
The PC AlertTM III is a utility you can find in the CD-ROM disk. The
utility is just like your PC doctor that can de-
tect the following PC hardware status during
real time operation:
* monitor CPU & system temperatures
* monitor fan speed(s)
* monitor system voltage
* monitor chassis intrusion
If one of the items above is abnormal,
the program main screen will be immediately
shown on the screen, with the abnormal item
highlighted in red. This will continue to be
shown until users disable the warning.
Note: Items shown on PC Alert III vary depending on your system’s
status.

Hardware Setup
2-1
Chapter 2. Hardware Setup
TOPICS
Central Processing Unit: CPU 2-2
Memory 2-5
Power Supply 2-7
Back Panel 2-8
Connectors 2-13
Jumpers 2-22
Slots 2-24
2
Hardware Setup
This chapter provides you with the information about hardware setup
procedures. While doing the installation, be careful in holding the components
and follow the installation procedures. For some components, if you install in
the wrong orientation, the components will not work properly.
Use a grounded wrist strap before handling computer components. Static
electricity may damage the components.

Chapter 2
2-2
Central Processing Unit: CPU
The mainboard supports Intel®Pentium®4 processor in the 478 pin
package. The mainboard uses a CPU socket called PGA478 for easy CPU
installation. When you are installing the CPU, make sure the CPU has a heat
sinkandacoolingfanattachedonthetoptopreventoverheating. Ifyoudonot
find the heat sink and cooling fan, contact your dealer to purchase and install
them before turning on the computer.
Overheating will seriously damage the CPU and system,
always make sure the cooling fan can work properly to
protect the CPU from overheating.
WARNING!
1. Pull the lever sideways away
from the socket. Then, raise
the lever up to a 90-degree
angle.
2. Look for the dot/cut edge. The
dot/cut edge should point to-
wards the lever pivot. The
CPU will only fit in the correct
orientation.
3. Press the CPU down firmly
into the socket and close the
lever. As the CPU is likely to
move while the lever is being
closed, always close the lever
with your finger pressing
tightly on top of the CPU to
make sure the CPU is properly
& completely embedded into
the socket.
CPUInstallationProcedures
Open Lever
Dot / Cut edge
Sliding
Plate
Close
Lever
Press down
the CPU

Hardware Setup
2-3
Installingthe CPU Fan
As processor technology pushes to faster speeds and higher
performance, thermal management becomes increasingly important. To dissi-
pate heat, you need to attach the CPU cooling fan and heatsink on top of the
CPU. Follow the instructions below to install the Heatsink/Fan:
2. Position the heatsink onto the reten-
tion mechanism.
1. Locate the CPU and its retention
mechanism on the motherboard.
3. Mount the fan on top of the heatsink.
Press down the fan until its four clips
get wedged in the holes of the reten-
tion mechanism.
4. Press the two levers down to fasten
the fan. Each lever can be pressed
down in only ONE direction.
retention mechanism
levers

Chapter 2
2-4
CPU Core Speed Derivation Procedure
If CPUClock = 100MHz
Core/Bus ratio = 14
then CPU core speed = Host Clock x Core/Bus ratio
= 100MHzx14
= 1.4GHz
Overclocking
This motherboard is designed to support overclocking.
However, please make sure your components are able to
tolerate such abnormal setting, while doing overclocking.
Any attempt to operate beyond product specifications is not
recommended. We do not guarantee the damages or risks
caused by inadequate operation or beyond product
specifications.
WARNING!
5. Connect the fan power cable from the mounted fan to the 3-pin fan power connector
on the board.
fan power cable

Hardware Setup
2-5
DIMM1
DIMM2
Memory
The mainboard provides 2 slots for 184-pin, 2.5V DDR DIMM with 4
memory banks. You can install DDR200/PC1600 or DDR266/PC2100 DDR
SDRAM modules on the DDR DIMM slots (DDR 1~2). To operate properly, at
least one DIMM module must be installed.
Introduction to DDR SDRAM
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM,
but doubles the rate by transferring data twice per cycle. It uses 2.5 volts as
opposed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM mod-
ules rather than 168-pin DIMM modules used by SDR SDRAM. Two types of
DDRareavailableatthetimeofwriting:PC1600&PC2100.PC1600DDRSDRAM
running at 100MHz will produce about 1.6GB/s memory bandwidth. PC2100
running at 133MHz will produce 2.1GB/s memory bandwidth. High memory
bandwidth makes DDR an ideal solution for high performance PC, worksta-
tions and servers.

Chapter 2
2-6
DDR Module Combination
You can install either single sided or double sided 184-pin DDR DIMM
modules into DDR DIMM slots to meet your needs. Different from the SDR
DIMM, the DDR DIMM has only one notch on the center of module. The
number of pins on either side of the breaks are different. The module will only
fit in the right orientation.
You can install memory modules in any combination as follows:
S: Single Side D: Double Side
Slot Memory Module Total Memory
DIMM 1
(Bank 0 & 1) S/D 64MB~1GB
DIMM 2
(Bank 2 & 3) S/D 64MB~1GB
Maximum System Memory Supported 64MB~2GB
Installing DDR Modules
1. The DDR DIMM has only one notch on the center of module. The module
will only fit in the right orientation.
2. Insert the DIMM memory module vertically into the DIMM slot. Then
push it in until the golden finger on the memory module is deeply inserted
in the socket.
3. The plastic clip at each side of the DIMM slot will automatically close.
Volt Notch
How do I know if I have installed the memory modules correctly?
TIP: You can barely see the golden finger if the module is deeply inserted in the socket.