MSI 845GEM Series User manual

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FCC-B Radio Frequency Interference Statement
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
equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance 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 responsible 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 LANOTICE D’NSTALLATIONAVANT DE RACCORDER AU RESEAU.
Micro-Star International
MS-7057
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired operation
G52-M7057X2

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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.
AMD, Athlon™ Athlon™XP, Thoroughbred™ and Duron™ are registered trademarks of AMD Corporation.
Intel® and Pentium® are registered trademarks of Intel Corporation.
PS/2 and OS® 2 are registered trademarks of International Business Machines Corporation.
Microsoft® is a registered trademark of Microsoft Corporation. Windows® 98/2000/NT/XP are registered trademarks
of Microsoft Corporation.
NVIDIA, the NVIDIA logo, DualNet, and nForce are registered trademarks or trademarks of NVIDIA Corporation in the
United States and/or other countries.
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.
Kensington and MicroSaver are registered trademarks of the Kensington Technology Group.
PCMCIA and CardBus are registered trademarks of the Personal Computer Memory Card International Association.
Revision History
Revision Revision History Date
V1.0 First released for PCB 1.x March 2004
V1.1 Add Dutch version April 2004

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Safety Instructions
1. Always read the safety instructions carefully.
2. Keep this User 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 equipment from overheating. Do not
cover the openings.
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. Always Unplug the Power Cord before inserting any add-on card 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 electrical shock.
11. If any of the following situations arises, get the equipment checked by a service personnel:
- The power cord or plug is damaged.
- Liquid has penetrated into the equipment.
- The equipment has been exposed to moisture.
- The equipment does not work well or you can not get it work according to User Manual.
- The equipment has dropped and damaged.
- The equipment has obvious sign of breakage.
12. Do not leave this equipment in an environment unconditioned, storage temperature above 600 C (1400F), it may
damage the equipment.
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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Table of Content
English.....................................................................1
Deutsch....................................................................15
Français...................................................................29
简体中文...................................................................43
繁體中文...................................................................55
Nederlands..............................................................69

1
Introduction
Thank you for purchasing 845GEM-V/845GVM-V Series (MS-7057) v1.X Micro ATX mainboard. The
845GEM-V/845GVM-V Series is based on Intel ® 845GE/GV & Intel ® ICH4 chipsets and provides 6
USB 2.0 ports for high-speed data transmission. With all these special designs, the
845GEM-V/845GVM-V Series delivers a high performance and professional desktop platform solution.
Layout
BATT
+
ICH4
DDR 1
DDR 2
JAUDIO1
CD _IN1
JUSB1 JFP 1 JF P2
AT X
Power Su pply
CP UFA N1
SYSFAN1
JBAT1
PCI Slot 3
PCI Slot 2
PCI Slot 1
IDE 1
IDE 2
Top: Parallel Por t
Bo ttom :
CO MA
VGAport
Top : mouse
Bottom: keyboard
Top: LANJack
Bottom: USB
ports
US B
ports
Co dec
RTL
8101L
JPW1
T: L i n e - In
M:Lin e-Out
B:Mic
FDD 1
SOCKET 478
JCOM2
JCASE1
Winbond
W83 627 HF -AW
Intel
845GV/GE
BIOS
CNR
AGPSlot(for845GEM-V)

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Specifications
CPU
zSocket 478 for P4 processors (Northwood/Prescott Celeron) at 400 MHz/533 MHz
zSupports up to 3.06GHz or faster.
(For the latest information about CPU, please visit
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_cpu_support.php )
Chipset
zIntel ® 845GE/GV
- Supports FSB 400MHz /533MHz.
- Integrated 3D/2D graphic core.
- Supports PC2700 (DDR333) technology.
zIntel ® ICH4
- AC97 Controller Integrated.
- 6 ports Hi-Speed USB 2.0 controller, 480Mb/sec.
- Supports both ACPI and legacy APM power management.
- Legacy free support.
Main Memory
zSupports 4 memory banks using 2 184-pin unbuffered DDR 200/266/333 DIMMs.
zSupports up to 2GB memory size without ECC.
(For the updated supporting memory modules, please visit
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_trp_list.php )
Slots
zOne optional AGP (Accelerated Graphics Port) slot (for 845GEM-V only) that supports AGP 2.0
4X/2X.
zThree PCI 2.2 32-bit Master PCI Bus slots (support 3.3V/5V PCI bus interface).
zOne CNR slot.
On-Board IDE
zDual IDE controllers integrated in Intel ® ICH4.
zSupports Bus Master, Ultra DMA 33/66/100 operation modes.
zCan connect up to four IDE devices.
On-Board Peripherals
zOn-Board Peripherals includes:

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- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and 2.88 Mbytes.
- 1 serial port (COMA) and 1 VGA port
- 1 parallel port supports SPP/EPP/ECP mode
- 6 USB 2.0/1.1 ports (Rear * 4 / Front * 2)
- 1 Line-In/Line-Out/Mic-In port
- 1 RJ-45 LAN connector
Audio
zAC97 link controller integrated in Intel ® ICH4.
z6 channels S/W audio codec Realtek ALC655 codec
- Compliance withAC97 2.2 Spec
- Meets PC2001 audio performance requirement
LAN
zRealtek 8101L PCI2.2 LAN
- Supports 10Mb/s and 100Mb/s auto-negotiation operations.
- Compliance with PCI 2.2 and PC99 standard.
BIOS
z4MB Award BIOS with PNP BIOS, ACPI, SMBIOS 2.3, Green and Boot Block.
zProvides DMI 2.0, WFM 2.0, WOL, chassis intrusion, and SMBus for system management.
Dimension
zMicro-ATX Form Factor: 24.4 cm (L) x 21.4 cm (W).
Mounting
z6 mounting holes.

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Rear Panel
The back panel provides the following connectors:
Keyboard
USBPorts
Mouse
COMport VGAport
ParallelPort LineIn
LineOut
Mic In
LAN
USB Ports
Hardware Setup
This chapter tells you how to install the CPU, memory modules, and expansion cards, as well as how to
setup the jumpers on the mainboard. It also provides the instructions on connecting the peripheral
devices, such as the mouse, keyboard, etc. While doing the installation, be careful in holding the
components and follow the installation procedures.
Central Processing Unit: CPU
The mainboard supports Intel Pentium 4 Northwood & Prescott Celeron 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 sink and a cooling fan attached on the top to prevent
overheating. If you do not find the heat sink and cooling fan, contact your dealer to purchase and install
them before turning on the computer. (For the latest information about CPU, please visit
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_cpu_support.php )
Example of CPU Core Speed Derivation Procedure
If CPU Clock = 133MHz
Core/Bus ratio = 23
then CPU core speed = Host Clock x Core/Bus ratio
= 133MHz x 23
=3.06GHz

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Memory Speed/CPU FSB Support Matrix
Memory
FSB DDR 200 DDR 266 DDR 333
400 MHz OK OK Down to 266
533 MHz OK OK OK
MSI Reminds You...
Overheating…
Overheating will seriously damage the CPU and system, always make sure the cooling fan can work
properly to protect the CPU from overheating.
Replacing the CPU…
While replacing the CPU, always turn off the ATX power supply or unplug the power supply’s power
cord from grounded outlet first to ensure the safety of CPU.
CPU Installation Procedures for Socket 478
1. Please turn off the power and unplug the power cord before installing the CPU.
2. Pull the lever sideways away from the socket. Make sure to raise the lever up to a 90-degree
angle.
3. Look for the gold arrow. The gold arrow should point towards the lever pivot. The CPU can only
fit in the correct orientation.
4. If the CPU is correctly installed, the pins should be completely embedded into the socket and
can not be seen. Please note that any violation of the correct installation procedures may cause
permanent damages to your mainboard.
5. 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 fingers pressing tightly on top of
the CPU to make sure the CPU is properly and completely embedded into the socket.

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Installing the CPU Fan
As processor technology pushes to faster speeds and higher performance, thermal management
becomes increasingly important. To dissipate 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:
1. Locate the CPU and its retention mechanism on the motherboard.
2. Position the heatsink onto the retention mechanism.
3. Mount the fan on top of the heatsink. Press down the fan until its four clips get wedged in the
holes of the retention mechanism.
4. Press the two levers down to fasten the fan. Each lever can be pressed down in only ONE
direction.
5. Connect the fan power cable from the mounted fan to the 3-pin fan power connector on the
board.
Memory
The mainboard provides two 184-pin unbuffered DDR200/DDR266/DDR333 SDRAM, and supports the
memory size up to 2GB. To operate properly, at least one DIMM module must be installed. (For the
updated supporting memory modules, please visit
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_trp_list.php )
Install at least one DIMM module on the slots. Memory modules can be installed on the slots in any
order. You can install either single- or double-sided modules to meet your own needs.
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.