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User manual GIGABYTE GA-K8A480M-9
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User guide GIGABYTE GA-K8A480M-9
Detailed instructions for use are in the User's Guide. GA-K8A480M-9
AMD Socket 939 Processor Motherboard
User's Manual
Rev. 1002 12ME-K8A480M9-1002
This product must not be disposed of with your other household waste and must be handed over to a designated collection point for the recycling of waste electrical and electronic equipment !
Motherboard GA-K8A480M-9
Motherboard
GA-K8A480M-9
Mar. 16, 2005
Mar. 16, 2005
Copyright
© 2005 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 quick installation, please refer to the "Hardware Installation Guide" included with the product. 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 the "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
GA-K8A480M-9 Motherboard Layout ............................................................................ 6 Block Diagram ................................................................................................................ 7 Chapter 1 Hardware Installation .................................................................................... 9
1-1 1-2 1-3 Considerations Prior to Installation .................................................................... 9 Feature Summary .......................................................................................... 10 Installation of the CPU and Fan Heat Sink ..................................................... 12
1-3-1 1-3-2 Installation of the CPU ......................................................................................... 12 Installation of the Fan Heat Sink ........................................................................ 13
1-4 1-5 1-6 1-7
Installation of Memory .................................................................................... 14 Installation of Expansion Cards ...................................................................... 16 I/O Back Panel Introduction ........................................................................... 17 Connectors Introduction .................................................................................. 18
Chapter 2 BIOS Setup ................................................................................................ 27
The Main Menu (For example: BIOS Ver. : D6) ....................................................... 28 2-1 Standard CMOS Features ............................................................................. 29 2-2 Advanced BIOS Features .............................................................................. 31 2-3 Integrated Peripherals ..................................................................................... 32 2-4 2-5 2-6 2-7 2-8 2-9 2-10 2-11 2-12 Power Management Setup ............................................................................. 34 PnP/PCI Configurations ................................................................................. 36 PC Health Status ........................................................................................... 37 MB Intelligent Tweaker(M.I.T.) ....................................................................... 38 Load Fail-Safe Defaults ................................................................................... 39 Load Optimized Defaults ................................................................................. 39 Set Supervisor/User Password ..................................................................... 40 Save & Exit Setup ......................................................................................... 41 Exit Without Saving ....................................................................................... 41
-4-
Chapter 3 Drivers Installation ...................................................................................... 43
3-1 3-2 3-3 3-4 3-5 Install Chipset Drivers .................................................................................... 43 Software Application ....................................................................................... 44 Software Information ....................................................................................... 44 Hardware Information ..................................................................................... 45 Contact Us ..................................................................................................... 45
Chapter 4 Appendix ................................................................................................... 47
4-1 Unique Software Utilities ................................................................................ 47
4-1-1 4-1-2 4-1-3 4-1-4 4-1-5 EasyTune 5 Introduction ..................................................................................... 47 Xpress Recovery Introduction ........................................................................... 48 Flash BIOS Method Introduction ........................................................................ 51 Serial ATA BIOS Setting Utility Introduction ...................................................... 60 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 70
4-2
Troubleshooting ............................................................................................... 74
-5-
GA-K8A480M-9 Motherboard Layout
CPU_FAN KB_MS ATX_12V
COMA
ATX FDD
Socket 939
USB
USB
LAN
AUDIO1 AUDIO2 AZALIA_FP PCIE_16_1 RTL8110S
ATi RS480 CLR_CMOS
BAT
GA-K8A480M-9
VGA
LPT
DDR1
DDR2
DDR3
DDR4
IDE1 IDE2
PCIE_1
IT8712
BIOS
ULi M1573
SATA3 SATA2 SATA1
PCI1 CD_IN CODEC SPDIF_IO COMB SYS_FAN PCI2 F_USB2 F_USB1 F_PANEL CI
SATA0
-6-
Block Diagram
PCI-ECLK (100MHz) VGA AMD K8 Socket 939 CPU Host Interface PCI Express x16 1 PCI Express x 1 Port PCI-ECLK (100MHz) PCI Express x1 Bus ATi RS480 SBLINK_CLK P/N (100MHz) NBSRC_CLK P/N (100MHz) NB_OSC (14.318MHz) 66MHz Local Frame Buffer(L.F.B.) SBSRC_CLK P/N (100MHz) 33MHz 14.318MHz 48MHz BIOS ULi M1573 4 Serial ATA ATA33/66/100/133 IDE Channels Floppy IT 8712 LPT Port CPUCLK+/-(200MHz) DDR 400/333/266/200MHz DIMM Dual Channel Memory
PCI Bus
RTL 8110S RJ45
COM Ports CODEC 48MHz
Surround Speaker Out Center/Subwoofer Speaker Out Side Speaker Out MIC Line-Out Line-In SPDIF In SPDIF Out
8 USB Ports
33MHz
2 PCI
PS/2 KB/Mouse
PCICLK (33MHz)
-7-
-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.
English
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.
Instances of Non-Warranty
1. 2. 3. 4. 5. 6. Damage due to natural disaster, accident or human cause. Damage as a result of violating the conditions recommended in the user manual. Damage due to improper installation. Damage due to use of uncertified components. Damage due to use exceeding the permitted parameters. Product determined to be an unofficial Gigabyte product.
-9-
Hardware Installation
English
1-2
CPU
Feature Summary
Socket 939 for AMD Athlon TM 64 / 64 FX processor (K8) 2000MT/s system bus Supports core frequencies in excess of 3000+ and faster North Bridge: ATi RS480 South Bridge: ULi M1573 supported on the Win 2000/XP operating systems 4 DDR DIMM memory slots (supports up to 4GB memory) (Note 1) Supports dual channel DDR 400/333/266/200 DIMM 1 PCI Express x 16 slot 1 PCI Express x 1 slot 2 PCI slots 2 IDE connection (UDMA 33/ATA 66/ATA 100/ATA 133), allows connection of 4 IDE devices 1 FDD connection, allows connection of 2 FDD devices 4 Serial ATA ports from ULi M1573 controller supported on the Win 2000/XP operating systems 1 parallel port supporting Normal/EPP/ECP mode 1 VGA port, 1 COMA port, onboard COMB connection 8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable) 1 front audio connector 1 PS/2 keyboard port 1 PS/2 mouse port Onboard Realtek 8110S chip (10/100/1000 Mbit) 1 RJ 45 port ALC880 CODEC High Definition Audio Supports 2 / 4 / 6 / 8 channel audio Supports Line In; Line Out (Front Speaker Out); MIC; Surround Speaker Out (Rear Speaker Out); Center/Subwoofer Speaker Out; Side Speaker Out connection Supports SPDIF In/Out connection CD In connection supported on the Win 2000/XP operating systems IT8712 16MB x 2
Chipset
Memory Slots
IDE Connections FDD Connections Onboard SATA Peripherals
Onboard LAN Onboard Audio
I/O Control L.F.B. (Local Frame Buffer)
(Note 1) Due to standard PC architecture, a certain amount of memory is reserved for system usage and therefore the actual memory size is less than the stated amount. For example, 4 GB of memory size will instead be shown as 3.xxGB memory during system startup. GA-K8A480M-9 Motherboard - 10 -
Hardware Monitor
Onboard SATA RAID
BIOS Additional Features Form Factor
System voltage detection CPU temperature detection CPU / System fan speed detection CPU warning temperature CPU / System fan failure warning CPU smart fan control Onboard ULi M1573 chipset - supports data striping (RAID 0) or mirroring (RAID 1) function or striping + mirroring (RAID 0+1) or JBOD function - supports data transfer rate of up to 150 MB/s - supports hot plugging function - supports a maximum of 4 SATA connections - supported on the Win 2000/XP operating systems Use of licensed AWARD BIOS Supports Q-Flash Supports @BIOS Supports EasyTune (only supports Hardware Monitor function) Micro ATX form factor; 24.4cm x 24.4cm
English
- 11 -
Hardware Installation
English
1-3
Installation of the CPU and Fan Heat Sink
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 heatsink. 4. Please make sure the heatsink 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.
1-3-1 Installation of the CPU
Check the processor pins to see that none are bent. Move the socket lever to the unlocked position as shown in Figure 1.(90 o to the plane of the motherboard) prior to inserting the processor. The pin 1 location is designated on the processor by a copper triangle that matches up to a triangle on the socket as shown in Figure 2. Align the processor to the socket and gently lower it into place. Do not force the processor into the socket. Socket lever Fig.1 Position lever at a 90 degree angle.
Fig.2 A gold-colored triangle is marked one edge of the CPU. Please align this edge with the socket edge closest to the CPU lever. Gently place the CPU into position making sure that the CPU pins fit perfectly into their holes. Once the CPU is positioned into it socket, place one finger down on the middle of the CPU and gently press the metal lever back into its original position.
Please use extra care when installing the CPU. The CPU will not fit if positioned incorrectly. Rather than applying force, please change the positioning of the CPU.
GA-K8A480M-9 Motherboard
- 12 -
1-3-2 Installation of the Fan Heat Sink
Fig.1 Before installing the heat sink, please first add an even layer of heat sink paste on the surface of the CPU. Install all the heat sink components (Please refer to the heat sink manual for detailed installation instructions).
English
Fig.2 Please connect the heat sink power connector to the CPU_FAN connector located on the motherboard so that the heat sink can properly function to prevent CPU overheating.
The heat sink may adhere to the CPU as a result of hardening of the heat sink paste. To prevent such an occurrence, it is suggested that either thermal tape rather than heat sink paste be used for heat dissipation or using extreme care when removing the heat sink.
- 13 -
Hardware Installation
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 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
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-K8A480M-9 Motherboard
- 14 -
Dual Channel Memory Configuration
The GA-K8A480M-9 supports the Dual Channel Technology. When the Dual Channel Technology is activated, the bandwidth of memory bus will be double the original one. Due to CPU limitation, if you want to operate the Dual Channel Technology, please follow the guidelines below for Dual Channel memory configuration. 1. Dual Channel mode will not be enabled if only one DDR memory module is installed. 2. To enable Dual Channel mode with 2 memory modules (it is recommended to use memory modules of identical brand, size, chips, and speed), you must install them into DIMM sockets of the same color. 3. To enable Dual Channel mode with 4 memory modules, it is recommended to use memory modules of identical brand, size, chips, and speed. The following is a Dual Channel Memory configuration table: (DS: Double Side, SS: Single Side)
DDR 1 2 memory modules 4 memory modules DS/SS X DS/SS DDR 2 DS/SS X DS/SS DDR 3 X DS/SS DS/SS DDR 4 X DS/SS DS/SS
English
If two memory modules are to be used to achieve Dual Channel mode, we recommend installing them in DDR1 and DDR2 DIMM sockets. All of the memory configurations below will cause system unable to boot. (DS: Double Side, SS: Single Side)
DDR 1 1 memory module 2 memory modules X X X DS/SS X 3 memory modules DS/SS X DS/SS DS/SS DDR 2 DS/SS X DS/SS X DS/SS DS/SS DS/SS X DS/SS DDR 3 X X DS/SS X X DS/SS DS/SS DS/SS X DDR 4 X DS/SS X DS/SS DS/SS X DS/SS DS/SS DS/SS
- 15 -
Hardware Installation
English
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 install 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 PCI Express x 16 expansion card:
Please carefully pull out the small whitedrawable bar at the end of the PCI Express x 16 slot when you try to install/uninstall the VGA card. Please align the VGA card to the onboard PCI Express x 16 slot and press firmly down on the slot. Make sure your VGA card is locked by the small white-drawable bar.
GA-K8A480M-9 Motherboard
- 16 -
1-6
I/O Back Panel Introduction
English
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.
COM A (Serial Port)
Connects to serial-based mouse or data processing devices.
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 Gigabit Ethernet, providing data transfer speeds of 10/100/1000Mbps.
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 speakers to this connector.
MIC In
Microphone can be connected to MIC In jack.
Rear Speaker Out
Connect the rear surround speakers to this connector.
Center/Subwoofer Speaker Out
Connect the Center/Subwoofer speakers to this connector.
Side Speaker Out
Connect the side surround speakers to this connector. You can use audio software to configure 2-/4-/6-/8-channel audio functioning. - 17 Hardware Installation
English
1-7
Connectors Introduction
1
3
2
5
6 16
9
7 10 11 13 4 15 12 14 8
1) 2) 3) 4) 5) 6) 7) 8)
ATX_12V ATX (Power Connector) CPU_FAN SYS_FAN FDD IDE1 / IDE2 SATA0/ATA1/SATA2/SATA3 F_PANEL
9) 10) 11) 12) 13) 14) 15) 16)
AZALIA_FP CD_IN SPDIF_IO F_USB1 / F_USB2 COMB CI CLR_CMOS BAT
GA-K8A480M-9 Motherboard
- 18 -
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. If you use a 24-pin ATX power supply, please remove the small cover on the power connector on the motherboard before plugging in the power cord; otherwise, please do not remove it.
Pin No. 1 2
2 1
English
4
3
Definition GND GND +12V +12V Definition 3.3V 3.3V GND +5V GND +5V GND Power Good 5V SB(stand by +5V) +12V +12V 3.3V(Only for 24pins ATX) 3.3V -12V GND PS_ON(soft On/Off) GND GND GND -5V +5V +5V +5V GND
3 4 Pin No.
12
24
1 2 3 4 5 6 7 8 9 10 11 12
1
13
13 14 15 16 17 18 19 20 21 22 23 24
- 19 -
Hardware Installation
English
3/4) CPU_FAN / SYS_FAN (Cooler Fan Power Connector)
The cooler fan power connector supplies a +12V power voltage via a 3-pin 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). Please remember to connect the power to the cooler to prevent system overheating and failure. Caution! Please remember to connect the power to the CPU fan to prevent CPU overheating and failure.
1 CPU_FAN
Pin No. 1 2 3
Definition GND +12V Sense
1 SYS_FAN
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. Please connect the red power connector wire to the pin1 position.
34
33
2
1
GA-K8A480M-9 Motherboard
- 20 -
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).
English
40
39
2 IDE1 IDE2
1
7) SATA0/SATA1/SATA2/SATA3 (Serial ATA Connectors, Controlled by ULi M1573)
Serial ATA can provide 150MB/s transfer rate. Please refer to the BIOS setting for the Serial ATA and install the proper driver in order to work properly.
Pin No. 1
1 7
Definition GND TXP TXN GND RXN RXP GND
2 3 4 5 6 7
- 21 -
Hardware Installation
English
8)
F_PANEL (Front Panel Jumper)
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 assignment below.
Message LED/ Power/ Sleep LED Speaker Connector Power Switch
MSG+ MSGPW+ PW-
SPEAK+
2 1
RES+ NC HD-
HD+
IDE Hard Disk Active LED
HD (IDE Hard Disk Active LED) SPEAK (Speaker Connector)
Pin 1: LED anode(+) Pin 2: LED cathode(-) Pin 1: Power Pin 2- Pin 3: NC Pin 4: Data(-) Open: Normal Close: Reset Hardware System Open: Normal Close: Power On/Off Pin 1: LED anode(+) Pin 2: LED cathode(-) NC
RES (Reset Switch) PW (Power Switch) MSG(Message LED/Power/Sleep LED) NC
GA-K8A480M-9 Motherboard
- 22 -
RES-
Reset Switch
SPEAK-
20 19
9) AZALIA_FP (Front Audio Panel Connector)
This connector is supported to connect HD(High Definition) Audio and AC'97 Audio. Check the pin assignment carefully while you connect the audio panel cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional audio panel cable, please contact your local dealer.
10 9
English
2
1
HD Audio: Pin No. 1 2 3 4 5 6 7 8 9 10
Definition MIC2_L GND MIC2_R -ACZ_DET Line2_R FSENSE1 FAUDIO_JD No Pin LINE2_L FSENSE2
AC'97 Audio: Pin No. Definition 1 MIC 2 3 4 5 6 7 8 9 10 GND MIC Power NC Line Out (R) NC NC No Pin Line Out (L) NC
HD Audio is the default setting for this connector. To enable AC'97 Audio, from BIOS settings, set Front Panel Type under Integrated Peripherals to AC97.
10) CD_IN (CD In Connector)
Connect CD-ROM or DVD-ROM audio out to the connector.
Pin No. 1 2
1
Definition CD-L GND GND CD-R
3 4
- 23 -
Hardware Installation
English
11) SPDIF_IO (SPDIF In/Out)
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.
6 2 5 1
Definition Power No Pin SPDIF SPDIFI GND GND
1 2 3 4 5 6
12) F_ USB1 / F_USB2 (Front USB Connector)
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.
Pin No. 1 2 3 4 5
1 9
Definition Power Power USB DXUSB DyUSB DX+ USB Dy+ GND GND No Pin NC
2
10
6 7 8 9 10
GA-K8A480M-9 Motherboard
- 24 -
13) COMB (Serial Port Connector)
Be careful with the polarity of the COM connector. Check the pin assignment carefully while you connect the COM cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional COM cable, please contact your local dealer.
Pin No. 1 2 3 4 5 6
1 9
English
Definition NDCD BNSIN B NSOUT B NDTR BGND NDSR BNRTS BNCTS BNRI BNo Pin
2
10
7 8 9 10
14) 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.
1
Definition Signal GND
1 2
- 25 -
Hardware Installation
English
15) CLR_CMOS (Clear CMOS)
You may clear the CMOS data to its default values by this jumper. To clear CMOS, temporarily short 1-2 pin. Default doesn't include the "Shunter" to prevent from improper use this jumper.
1
Open: Normal
1
Short: Clear CMOS
16) BAT(Battery)
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. Remove the battery, wait for 30 seconds. 3. Re-install the battery. 4. Plug the power cord and turn ON the computer.
GA-K8A480M-9 Motherboard
- 26 -
Chapter 2 BIOS Setup
BIOS (Basic Input and Output System) includes a CMOS SETUP utility which allows user to configure required settings or to activate certain system features. The CMOS SETUP saves the configuration in the CMOS SRAM of the motherboard. When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS SRAM. When the power is turned on, pushing the
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