GA-8VM800PMD-775-RH
GA-8VM800PMD-775-RH
Intel® Pentium® 4 LGA775 Processor Motherboard
User's Manual
Rev. 1001
12ME-VM800PMTR-1001R
* The WEEE marking on the product indicates this product must not be disposed of with user's other household waste
and must be handed over to a designated collection point for the recycling of waste electrical and electronic equipment!!
* The WEEE marking applies only in European Union's member states.
Jul. 7, 2006
GA-8VM800PMD-775-RH
Motherboard
Jul. 7, 2006
GA-8VM800PMD-775-RH
Motherboard
Copyright
© 2006 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in the manual are legally registered to their respective companies.
Notice
The written content provided with this product is the property of Gigabyte.
No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any
means without Gigabyte's prior written permission. Specifications and features are subject to
change without prior notice.
Product Manual Classification
In order to assist in the use of this product, Gigabyte has categorized the user manual in the
following:
For detailed product information and specifications, please carefully read the
"Product User Manual".
For detailed information related to Gigabyte's unique features, please go to "Technology
Guide" section on Gigabyte's website to read or download the information you need.
For more product details, please click onto Gigabyte's website at www.gigabyte.com.tw
Table of Contents
Item Checklist ................................................................................................................. 6
Optional Accessories ...................................................................................................... 6
GA-8VM800PMD-775-RH Motherboard Layout ............................................................ 7
Block Diagram ................................................................................................................ 8
Chapter 1 Hardware Installation ..................................................................................... 9
1-1 Considerations Prior to Installation .................................................................... 9
1-2 Feature Summary .......................................................................................... 10
1-3 Installation of the CPU and CPU Cooler ....................................................... 12
1-3-1 Installation of the CPU ......................................................................................... 12
1-3-2 Installation of the CPU cooler ............................................................................. 13
1-4 Installation of Memory .................................................................................... 14
1-5 Installation of Expansion Cards ...................................................................... 15
1-6 I/O Back Panel Introduction ........................................................................... 16
1-7 Connectors Introduction .................................................................................. 17
Chapter 2 BIOS Setup ................................................................................................ 29
The Main Menu (For example: BIOS Ver. : F4a) ...................................................... 30
2-1 Standard CMOS Features ............................................................................. 32
2-2 Advanced BIOS Features .............................................................................. 34
2-3 Integrated Peripherals ..................................................................................... 36
2-4 Power Management Setup ............................................................................. 38
2-5 PnP/PCI Configurations ................................................................................. 40
2-6 PC Health Status ........................................................................................... 41
2-7 Frequency / Voltage Control ........................................................................... 42
2-8 Load Fail-Safe Defaults ................................................................................... 43
2-9 Load Optimized Defaults ................................................................................. 43
2-10 Set Supervisor/User Password ..................................................................... 44
2-11 Save & Exit Setup......................................................................................... 45
2-12 Exit Without Saving ....................................................................................... 45
- 4 -
Chapter 3 Drivers Installation ...................................................................................... 47
3-1 Install Chipset Drivers .................................................................................... 47
3-2 Software Application ....................................................................................... 48
3-3 Software Information ....................................................................................... 48
3-4 Hardware Information ..................................................................................... 49
3-5 Contact Us ..................................................................................................... 49
Chapter 4 Appendix ................................................................................................... 51
4-1 Unique Software Utilities ................................................................................ 51
4-1-1 EasyTune 5 Introduction ..................................................................................... 51
4-1-2 Xpress Recovery Introduction ........................................................................... 52
4-1-3 Flash BIOS Method Introduction ........................................................................ 54
4-1-4 Configuring SATA Hard Drive(s) ........................................................................ 63
4-1-5 2 / 4 / 6 Channel Audio Function Introduction ................................................. 75
4-2 Troubleshooting ............................................................................................... 81
- 5 -
Item Checklist
IDE Cable x 1, FDD Cable x 1
SATA Cable x 1
I/O Shield
* The items listed above are for reference only, and are subject to change without notice.
Optional Accessories
2 Ports USB2.0 Cable (Part Number: 12CR1-1UB030-51/R)
COM Port Cable (Part Number: 12CF1-1CM001-31/R)
- 6 -
GA-8VM800PMD-775-RH Motherboard Layout
KB_MS
VGA
USB
AUDIO
CODEC
COMA
USB
RTL
8100C
LPT
LAN
F_AUDIO
CD_IN
ATX_12V
PCI1
PCI2
PCI3
BIOS
Winbond
W83627
LGA775
VIA
P4M800 Pro
COMB
CLR_CMOS
CPU_FAN
AGP
CI
DDRII_2
DDRII_1
GA-8VM800PMD-775-RH
VIA
VT8237R+
BATTERY
F_USB2
F_USB1
SYS _FAN
SATA1
F_PANEL
PWR_LED
ATX
IDE1
FDD
IDE2
SATA0
SUR_CEN
AUX_IN SPDIF_IO
- 7 -
Block Diagram
AGP CLK
(66MHz)
3 PCI
PCI CLK
(33MHz)
AGP 4X/8X
VGA Port
RJ45
RTL8100C
6 Channel
CODEC
MIC
AC97 Link
LINE-IN
LINE-OUT
LGA 775
Processor
VIA
P4M800 Pro
66MHz V_Link
VIA
VT8237R+
8 USB
Ports
System Bus
533/800MHz
LPC BUS
ATA33/66/
100/133
IDE Channels
CPUCLK+/- (133/200MHz)
400/533MHz
DDR II
2 Serial ATA
Winbond
W83627
PS/2 KB/Mouse
COMA/COMB
BIOS
Floppy
LPT Port
- 8 -
Chapter 1 Hardware Installation
1-1 Considerations Prior to Installation
Preparing Your Computer
The motherboard contains numerous delicate electronic circuits and components which can become
damaged as a result of electrostatic discharge (ESD). Thus, prior to installation, please follow the
instructions below:
1. Please turn off the computer and unplug its power cord.
2. When handling the motherboard, avoid touching any metal leads or connectors.
3. It is best to wear an electrostatic discharge (ESD) cuff when handling electronic components
(CPU, RAM).
4. Prior to installing the electronic components, please have these items on top of an antistatic pad or
within a electrostatic shielding container.
5. Please verify that the power supply is switched off before unplugging the power supply connector
from the motherboard.
Installation Notices
1. Prior to installation, please do not remove the stickers on the motherboard. These stickers are
required for warranty validation.
2. Prior to the installation of the motherboard or any hardware, please first carefully read the
information in the provided manual.
3. Before using the product, please verify that all cables and power connectors are connected.
4. To prevent damage to the motherboard, please do not allow screws to come in contact with the
motherboard circuit or its components.
5. Please make sure there are no leftover screws or metal components placed on the motherboard
or within the computer casing.
6. Please do not place the computer system on an uneven surface.
7. Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
8. If you are uncertain about any installation steps or have a problem related to the use of the product,
please consult a certified computer technician.
English
Instances of Non-Warranty
1. Damage due to natural disaster, accident or human cause.
2. Damage as a result of violating the conditions recommended in the user manual.
3. Damage due to improper installation.
4. Damage due to use of uncertified components.
5. Damage due to use exceeding the permitted parameters.
6. Product determined to be an unofficial Gigabyte product.
Hardware Installation- 9 -
English
1-2 Feature Summary
CPU Supports LGA775 Intel® Pentium® 4 Processor
L2 cache varies with CPU
Front Side Bus Supports 800/533MHz FSB
Chipset Northbridge: VIA P4M800 Pro Chipset
Southbridge: VIA 8237R+
LAN Onboard Realtek RTL8100C chip (10/100 Mbit)
Audio Onboard Realtek ALC655 chip
Supports 2 / 4 / 6 channel audio
Supports SPDIF In/Out connection
CD In / AUX In
Supports Jack Sensing (Connector Sensing) function
Storage VT8237R+ Southbridge
- 1 FDD connector, allowing connection of 1 FDD device
- 2 IDE connectors (IDE1, IDE2) with UDMA 33/ATA 66/ATA 100/ATA 133
suppport, allowing connection of 4 IDE devices
- 2 SATA connectors (SATA0, SATA1), allowing connection of 2 SATA
devices
- Supports data striping (RAID 0), mirroring (RAID 1) for Serial ATA
O.S Support Microsoft Windows 2000/XP
Memory 2 DDR II DIMM memory slots (supports up to 2 GB memory)
Supports DDR II 533/400 unbuffered DIMMs
Supports 1.8V DDR II DIMMs
Expanstion Slots 1 AGP slot
3 PCI slots
Internal Connectors 1 20-pin ATX power connector
1 4-pin ATX 12V power connector
1 floppy connector
2 IDE connectors
2 SATA connectors
1 CPU fan connector
1 system fan connector
1 front panel connector
1 front audio connector
1 CD In connector
1 AUX In connector
1 COMB connector
2 USB 2.0/1.1 connectors for additional 4 USB 2.0/1.1 ports by cables
1 SUR_CEN connector
1 SPDIF In/Out connector
1 power LED connector
(Note 1)
GA-8VM800PMD-775-RH Motherboard - 10 -
Rear Panel I/O 1 PS/2 keyboard port
1 PS/2 mouse port
1 parallel port
1 serial port (COMA)
1 VGA port
4 USB 2.0/1.1 ports
1 RJ-45 port
3 audio jacks (Line In / Line Out / MIC In)
I/O Control Winbond W83627 chip
Hardware Monitor System voltage detection
CPU / System temperature detection
CPU / System fan speed detection
CPU / System fan failure warning
CPU smart fan control
(Note 2)
BIOS 1 4Mbit flash ROM
Use of licensed AWARD BIOS
Additional Features Supports @BIOS
Supports Download Center
Supports Q-Flash
Supports EasyTune (only supports Hardware Monitor function)
Supports Xpress Install
Supports Xpress Recovery2
Supports Xpress BIOS Rescue
Bundle Software Norton Internet Security (OEM version)
Form Factor Micro ATX form factor; 24.4cm x 23.3cm
English
(Note 3)
(Note 1) Use of a Double-Sided memory module (the single chip is 512 Mbit) is required if you wish to
install a 1 GB memory module.
(Note 2) This function is only supported on 4-pin CPU fans.
(Note 3) EasyTune functions may vary depending on different motherboards.
Hardware Installation- 11 -
English
1-3 Installation of the CPU and CPU Cooler
Before installing the CPU, please comply with the following conditions:
1. Please make sure that the motherboard supports the CPU.
2. Please take note of the one indented corner of the CPU. If you install the CPU in the
wrong direction, the CPU will not insert properly. If this occurs, please change the
insert direction of the CPU.
3. Please add an even layer of heat sink paste between the CPU and CPU cooler.
4. Please make sure the CPU cooler is installed on the CPU prior to system use,
otherwise overheating and permanent damage of the CPU may occur.
5. Please set the CPU host frequency in accordance with the processor specifications. It
is not recommended that the system bus frequency be set beyond hardware specifications since it does not meet the required standards for the peripherals. If you wish to set
the frequency beyond the proper specifications, please do so according to your hardware specifications including the CPU, graphics card, memory, hard drive, etc.
HT functionality requirement content :
Enabling the functionality of Hyper-Threading Technology for your computer system
requires all of the following platform components:
- CPU: An Intel® Pentium 4 Processor with HT Technology
- Chipset: An Intel® Chipset that supports HT Technology
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology
1-3-1 Installation of the CPU
Metal Lever
Fig. 1
Gently lift the metal
lever located on the
CPU socket to the
upright position.
Fig. 2
Remove the plastic
covering on the CPU
socket.
Fig. 3
Notice the small gold
colored triangle located on the edge of
the CPU socket.
Align the indented cor-
ner of the CPU with
the triangle and gently insert the CPU into position.
(Grasping the CPU firmly between your thumb
and forefinger, carefully place it into the socket in a
straight and downwards motion. Avoid twisting or
bending motions that might cause damage to the
CPU during installation.)
GA-8VM800PMD-775-RH Motherboard - 12 -
Fig. 4
Once the CPU is
properly inserted,
please replace the
load plate and push the
metal lever back into
its original position.
1-3-2 Installation of the CPU cooler
English
Male Push Pin
The top of Female Push Pin
Female Push Pin
Fig.1
Please apply an even layer of CPU cooler paste
on the surface of the installed CPU.
Fig. 3
Place the CPU cooler atop the CPU and make
sure the push pins aim to the pin hole on the
motherboard.Pressing down the push pins
diagonally.
Fig. 5
Please check the back of motherboard after
installing. If the push pin is inserted as the picture,
the installation is complete.
Fig. 2
(Turning the push pin along the direction of arrow is to
remove the CPU cooler, on the contrary, is to install.)
Please note the direction of arrow sign on the male
push pin doesn't face inwards before installation. (This
instruction is only for Intel boxed fan)
Fig. 4
Please make sure the Male and Female push pin
are joined closely. (for detailed installation
instructions, please refer to the CPU cooler installation section of the user manual)
Fig. 6
Finally, please attach the power connector of the
CPU cooler to the CPU fan header located on the
motherboard.
The CPU cooler may adhere to the CPU as a result of hardening of the heat paste. To prevent
such an occurrence, it is suggested that either thermal tape rather than heat paste be used for
heat dissipation or using extreme care when removing the CPU cooler.
Hardware Installation- 13 -
English
1-4 Installation of Memory
Before installing the memory modules, please comply with the following conditions:
1. Please make sure that the memory used is supported by the motherboard. It is
recommended that memory of similar capacity, specifications and brand be used.
2. Before installing or removing memory modules, please make sure that the computer
power is switched off to prevent hardware damage.
3. Memory modules have a foolproof insertion design. A memory module can be installed
in only one direction. If you are unable to insert the module, please switch the direction.
The motherboard supports DDR II memory modules, whereby BIOS will automatically detect memory
capacity and specifications. Memory modules are designed so that they can be inserted only in one
direction. The memory capacity used can differ with each slot.
Notch
DDR II
Fig.1
The DIMM socket has a notch, so the DIMM memory module
can only fit in one direction. Insert the DIMM memory module
vertically into the DIMM socket. Then push it down.
Fig.2
Close the plastic clip at both edges of the DIMM sockets to lock
the DIMM module.
Reverse the installation steps when you wish to remove the
DIMM module.
GA-8VM800PMD-775-RH Motherboard - 14 -
1-5 Installation of Expansion Cards
You can install your expansion card by following the steps outlined below:
1. Read the related expansion card's instruction document before installing the expansion card into
the computer.
2. Remove your computer's chassis cover, screws and slot bracket from the computer.
3. Press the expansion card firmly into expansion slot in motherboard.
4. Be sure the metal contacts on the card are indeed seated in the slot.
5. Replace the screw to secure the slot bracket of the expansion card.
6. Replace your computer's chassis cover.
7. Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS.
8. Install related driver from the operating system.
Installing a AGP expansion card:
Please carefully pull out the small whitedrawable bar at the end of the AGP slot
when you try to install/uninstall the VGA
card. Please align the VGA card to the
onboard AGP slot and press firmly down
on the slot. Make sure your VGA card is
locked by the small white-drawable bar.
English
Hardware Installation- 15 -
English
1-6 I/O Back Panel Introduction
PS/2 Keyboard and PS/2 Mouse Connector
To install a PS/2 port keyboard and mouse, plug the mouse to the upper port (green) and the keyboard to the
lower port (purple).
Parallel Port
The parallel port allows connection of a printer, scanner and other peripheral devices.
Serial Port
Devices like mouses, modems, and etc. can be connected to Serial port.
VGA Port
Monitor can be connected to VGA port.
USB port
Before you connect your device(s) into USB connector(s), please make sure your device(s) such
as USB keyboard, mouse, scanner, zip, speaker...etc. have a standard USB interface. Also make
sure your OS supports USB controller. If your OS does not support USB controller, please contact
OS vendor for possible patch or driver upgrade. For more information please contact your OS or
device(s) vendors.
LAN Port
The provided Internet connection is fast Ethernet, providing data transfer speeds of 10/100Mbps.
Line In
Devices like CD-ROM, walkman etc. can be connected to Line In jack.
Line Out (Front Speaker Out)
Connect the stereo speakers, earphone or front surround channels to this connector.
MIC In
Microphone can be connected to MIC In jack.
GA-8VM800PMD-775-RH Motherboard - 16 -
1-7 Connectors Introduction
English
1
10
11
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) FDD
6) IDE1 / IDE2
7) SATA0 / SATA1
8) F_PANEL
9) PWR_LED
10) F_AUDIO
14 17 18
11) CD_IN
12) AUX_IN
13) SPDIF_IO
14) SUR_CEN
15) F_USB1 / F_USB2
16) COMB
17) CI
18) CLR_CMOS
19) BATTERY
3
1513 1612
2
5
6
4
7
19
9
8
Hardware Installation- 17 -
English
1/2) ATX_12V / ATX (Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all
the components on the motherboard. Before connecting the power connector, please make sure
that all components and devices are properly installed. Align the power connector with its
proper location on the motherboard and connect tightly.
The ATX_12V power connector mainly supplies power to the CPU. If the ATX_12V power
connector is not connected, the system will not start.
Caution!
Please use a power supply that is able to handle the system voltage requirements. It is
recommended that a power supply that can withstand high power consumption be used (300W
or greater). If a power supply is used that does not provide the required power, the result can
lead to an unstable system or a system that is unable to start.
Pin No. Definition
4
3
11
20
2
1
1
10
1 GND
2 GND
3 +12V
4 +12V
Pin No. Definition
1 3.3V
2 3.3V
3 GND
4 +5V
5 GND
6 +5V
7 GND
8 Power Good
9 5V SB (stand by +5V)
10 +12V
11 3.3V
12 -12V
13 GND
14 PS_ON(soft on/off)
15 GND
16 GND
17 GND
18 -5V
19 +5V
20 +5V
GA-8VM800PMD-775-RH Motherboard - 18 -
3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin/4-pin(CPU_FAN)
power connector and possesses a foolproof connection design.
Most coolers are designed with color-coded power connector wires. A red power connector wire
indicates a positive connection and requires a +12V power voltage. The black connector wire is
the ground wire (GND).
Remember to connect the CPU/system fan cable to the CPU_FAN/SYS_FAN connector to
prevent CPU damage or system hanging caused by overheating.
CPU_FAN :
Pin No. Definition
1
CPU_FAN
1
SYS_FAN
1 GND
2 +12V / Speed Control
3 Sense
4 Speed Control
SYS_FAN :
Pin No. Definition
1 GND
2 +12V
3 Sense
5) FDD (FDD Connector)
The FDD connector is used to connect the FDD cable while the other end of the cable connects to
the FDD drive. The types of FDD drives supported are: 360KB, 720KB, 1.2MB, 1.44MB and
2.88MB. Before attaching the FDD cable, please take note of the foolproof groove in the FDD
connector.
English
34
2
33
1
Hardware Installation- 19 -
English
6) IDE1 / IDE2 (IDE Connector)
An IDE device connects to the computer via an IDE connector. One IDE connector can connect to one
IDE cable, and the single IDE cable can then connect to two IDE devices (hard drive or optical drive).
If you wish to connect two IDE devices, please set the jumper on one IDE device as Master and the
other as Slave (for information on settings, please refer to the instructions located on the IDE device).
Before attaching the IDE cable, please take note of the foolproof groove in the IDE connector.
40
2
IDE1
39
1
IDE2
7) SATA0 / SATA1 (Serial ATA Connector)
Serial ATA can provide up to 150MB/s transfer rate. Please refer to the BIOS setting for the Serial
ATA and install the proper driver in order to work properly.
7
7
Pin No. Definition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
SATA1
1
1
SATA0
GA-8VM800PMD-775-RH Motherboard - 20 -
8) F_PANEL (Front Panel Connector)
Please connect the power LED, PC speaker, reset switch and power switch etc. of your chassis
front panel to the F_PANEL connector according to the pin assignments below.
English
Message LED/
Power/
Sleep LED
MSG (Message LED/Power/Sleep LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
PW (Power Switch) Open: Normal
Close: Power On/Off
SPEAK (Speaker Connector) Pin 1: Power
Pin 2- Pin 3: NC
Pin 4: Data(-)
HD (IDE Hard Disk Active LED) Pin 1: LED anode(+)
Pin 2: LED cathode(-)
RES (Reset Switch) Open: Normal
Close: Reset Hardware System
NC NC
Speaker Connector
Power
Switch
PW+
MSG+
PW-
MSG-
2
1
HD-
RES+
NC
HD+
RES-
Reset Switch
IDE Hard Disk Active LED
SPEAK+
SPEAK-
20
19
Hardware Installation- 21 -
English
9) PWR_LED
The PWR_LED connector is connected with the system power indicator to indicate whether the
system is on/off. It will blink when the system enters suspend mode.
1
Pin No. Definition
1 MPD+
2 MPD-
3 MPD-
10) F_AUDIO (Front Audio Panel Connector)
Please make sure the pin assignment on the cable is the same as the pin assigment on the MB
header. To find out if the chassis you are buying support front audio panel connector, please
contact your dealer. If you want to use "Front Audio" connector, you must remove the jumpers
from pins 5-6, 9-10.
Pin No. Definition
1 MIC
10
9
1
2
2 GND
3 MIC_BIAS
4 POWER
5 FrontAudio(R)
6 Rear Audio (R)/ Return R
7NC
8 No Pin
9 FrontAudio (L)
10 Rear Audio (L)/ Return L
GA-8VM800PMD-775-RH Motherboard - 22 -
11) CD_IN (CD IN Connector, black)
Connect CD-ROM or DVD-ROM audio out to the connector.
1
12) AUX_IN (AUX In Connector, white)
Connect other device (such as PCI TV Tunner audio out) to the connector.
English
Pin No. Definition
1 CD-L
2 GND
3 GND
4 CD-R
Pin No. Definition
1
1 AUX-L
2 GND
3 GND
4 AUX-R
Hardware Installation- 23 -
English
13) SPDIF_IO (SPDIF In/ Out connector, red)
The SPDIF output is capable of providing digital audio to external speakers or compressed AC3
data to an external Dolby Digital Decoder. Use this feature only when your stereo system has
digital input function. Use SPDIF IN feature only when your device has digital output function.
Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while
you connect the SPDIF cable. Incorrect connection between the cable and connector will make the
device unable to work or even damage it. For optional SPDIF cable, please contact your local
dealer.
Pin No. Definition
1 Power
2 No Pin
1625
3 SPDIF
4 SPDIFI
5 GND
6 GND
14) SUR_CEN (Surround Center Connector, black)
Please contact your nearest dealer for optional SUR_CEN cable.
GA-8VM800PMD-775-RH Motherboard - 24 -
6
2
5
1
Pin No. Definition
1 SUR OUTL
2 SUR OUTR
3 GND
4 No Pin
5 CENTER_OUT
6 BASS_OUT
15) F_USB1 / F_USB2 (Front USB Connectors)
Be careful with the polarity of the front USB connector. Check the pin assignment carefully while
you connect the front USB cable, incorrect connection between the cable and connector will make
the device unable to work or even damage it. For optional front USB cable, please contact your
local dealer.
English
10
2
9
1
Pin No. Definition
1 Power(5V)
2 Power(5V)
3 USB0 DX-
4 USB1 Dy-
5 USB0 DX+
6 USB1 Dy+
7 GND
8 GND
9 No Pin
10 NC
16) COMB (COMB Connector)
Be careful with the polarity of the COMB connector. Check the pin assignments while you connect
the COMB cable. Please contact your nearest dealer for optional COMB cable.
Pin No. Definition
2
10
9
1
1 NDCDB-
2 NSINB
3 NSOUTB
4 NDTRB-
5 GND
6 NDSRB-
7 NRTSB-
8 NCTSB-
9 NRIB-
10 No Pin
Hardware Installation- 25 -
English
17) CI (Chassis Intrusion, Case Open)
This 2-pin connector allows your system to detect if the chassis cover is removed. You can check
the "Case Opened" status in BIOS Setup.
Pin No. Definition
1
1 GND
2 Signal
18) CLR_CMOS (Clear CMOS)
You may clear the CMOS data to its default values by this header. To clear CMOS, temporarily
short the two pins. Default doesn't include the jumper to avoid improper use of this header.
GA-8VM800PMD-775-RH Motherboard - 26 -
Open: Normal
Short: Clear CMOS
19) BATTERY
English
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended
by the manufacturer.
Dispose of used batteries according to the manufacturer's
instructions.
If you want to erase CMOS...
1. Turn off the computer and unplug the power cord.
2. Gently take out the battery and put it aside for about one minute.
(Or you can use a metal object to connect the positive and
negative pins in the battery holder to make them short for five
seconds.)
3. Re-install the battery.
4. Plug the power cord in and turn on the computer.
Hardware Installation- 27 -
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