Gigabyte GA-K8N51GMF-9 User manual

GA-K8N51GMF-9
AMD Socket 939 Processor Motherboard
User's Manual
Rev. 1004
12ME-51GMF9-1004R
* 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.

Motherboard
GA-K8N51GMF-9
Sept. 29, 2005
Sept. 29, 2005
Motherboard
GA-K8N51GMF-9

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 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

- 4 -
Table of Contents
GA-K8N51GMF-9 Motherboard Layout ......................................................................... 6
Block Diagram ................................................................................................................ 7
Chapter 1 Hardware Installation .................................................................................... 9
1-1 Considerations Prior to Installation .................................................................... 9
1-2 Feature Summary .......................................................................................... 10
1-3 Installation of the CPU and Fan Heat Sink ..................................................... 12
1-3-1 Installation of the CPU ......................................................................................... 12
1-3-2 Installation of the Fan Heat Sink ........................................................................ 13
1-4 Installation of Memory .................................................................................... 14
1-5 Installation of Expansion Cards ...................................................................... 16
1-6 I/O Back Panel Introduction ........................................................................... 17
1-7 Connectors Introduction .................................................................................. 18
Chapter 2 BIOS Setup ................................................................................................ 29
The Main Menu (For example: BIOS Ver. : F1g)...................................................... 30
2-1 Standard CMOS Features ............................................................................. 32
2-2 Advanced BIOS Features .............................................................................. 34
2-3 IntegratedPeripherals ..................................................................................... 36
2-4 Power Management Setup ............................................................................. 39
2-5 PnP/PCI Configurations ................................................................................. 41
2-6 PC Health Status ........................................................................................... 42
2-7 Frequency/Voltage Control ............................................................................. 43
2-8 Load Fail-Safe Defaults ................................................................................... 44
2-9 Load Optimized Defaults ................................................................................. 44
2-10 Set Supervisor/User Password ..................................................................... 45
2-11 Save & Exit Setup ......................................................................................... 46
2-12 Exit Without Saving ....................................................................................... 46

- 5 -
Chapter 3 Drivers Installation ...................................................................................... 47
3-1 Install Chipset Drivers .................................................................................... 47
3-2 SoftwareApplication ....................................................................................... 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 ........................................................................ 55
4-1-4 Serial ATA BIOS Setting Utility Introduction ...................................................... 64
4-1-5 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 70
4-2 Troubleshooting ............................................................................................... 75

- 6 -
GA-K8N51GMF-9 Motherboard Layout
KB_MS
ATX_12V
CPU_FAN
AUDIO2
nVIDIA®
GeForce 6100
SPDIF_IO
CODEC
VGA
LPT
USB LAN
VIA VT6307
F_PANEL
BIOS
PCI1
PCI2
F_AUDIO
F_USB2
F_USB1
BAT
ATX
IDE2
FDD
CLR_CMOS
SYS_FAN
CD_IN
GA-K8N51GMF-9
COMA
PCIE_16
CI
Socket 939
IDE1
DDR1 DDR2 DDR3 DDR4
PCIE_1
F1_1394
W83627
nVIDIA®
nForce 430
AUDIO1
USB 1394
PWR_LED
SATAII3
SATAII2
SATAII1
SATAII0
VITESSE 8201

- 7 -
Block Diagram
PCICLK
(33MHz)
AMD K8
Socket 939
CPU
CPUCLK+/-(200MHz)
Hyper Transport
Bus
2PCI
PCI Bus
1 PCI Express x 1
PCI Express Bus nVIDIA®
GeForce 6100
nVIDIA®
nForce 430
2 IEEE1394
VT6307
DDR 400/333/266/200MHz DIMM
Dual Channel Memory
4 SATA 3Gb/s
8 USB
Ports
Line-Out
MIC
CODEC
Line-In
SPDIF In
SPDIF Out
Side Speaker Out
Center/Subwoofer Speaker Out
Surround Speaker Out
ATA33/66/100/133
IDE Channels
x1
PCI-ECLK
(100MHz)
PCI-ECLK
(100MHz)
PCI Express x 16
LPC BUS
48 MHz
33 MHz
Floppy
LPT Port
PS/2 KB/Mouse
COMA
Winbond
W83627
VGA
BIOS
Hyper Transport
Bus
LAN
RJ45
VITESSE
8201

- 8 -

Hardware Installation- 9 -
English
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.
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.
Chapter 1Hardware Installation

GA-K8N51GMF-9 Motherboard - 10 -
English
CPU Socket 939 for AMD SempronTM / AthlonTM 64 / AthlonTM 64 FX /
AthlonTM 64 X2 Dual-Core processor (K8)
2000MT/s system bus
Supports core frequencies in excess of 3000+ and faster
Chipset Northbridge: nVIDIA®GeForce 6100
Southbridge: nVIDIA®nForce 430
Supported on the Win 2000/XP operating systems
Memory 4 DDR DIMM memory slots (supports up to 4GB memory) (Note 1)
Supports dual channel DDR 400/333/266/200 DIMM
Slots 1 PCI Express x 16 slot
1 PCI Express x 1 slot
2 PCI slots
IDE Connections 2 IDE connection (UDMA 33/ATA 66/ATA 100/ATA 133), allows connection
of 4 IDE devices
Supported on the Win 2000/XP operating systems
FDD Connections 1 FDD connection, allows connection of 1 FDD device
Onboard SATA 4 SATA 3Gb/s ports from nVIDIA®nForce 430 controller
3Gb/s Supported on the Win 2000/XP operating systems
Peripherals 1 parallel port supporting Normal/EPP/ECP mode
1 VGA port, onboard COMA connection
8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable)
2 IEEE1394 ports (rear x 1, front x1 via cable)
1 front audio connector
1 PS/2 keyboard port
1 PS/2 mouse port
Onboard VGA Built-in nVIDIA®GeForce 6100 Chipset
Onboard LAN VITESSE 8201 phy (10/100/1000Mbit)
1 RJ45 port
Supported on the Win 2000/XP operating systems
Onboard Audio 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
SPDIF In/Out connection
CD In connection
Supported on the Win 2000/XP operating systems
1-2 Feature Summary
(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.

Hardware Installation- 11 -
English
I/O Control Winbond W83627
Hardware Monitor System voltage detection
CPU / System temperature detection
CPU / System fan speed detection
CPU warning temperature
CPU / System fan failure warning
CPU smart fan control(Note 2)
Onboard SATA Onboard nVIDIA®nForce 430 controller
3Gb/s RAID - supports data striping (RAID 0), mirroring (RAID 1), RAID0+1,
and RAID 5 functions
- supports data transfer rate of up to 300 MB/s
- supports hot plugging function
- supports a maximum of 4 SATA 3Gb/s connections
- supported on the Win 2000/XP operating systems
BIOS Use of licensed AWARD BIOS
Supports Q-Flash
Additional Features Supports @BIOS
Supports EasyTune (only supports Hardware Monitor function)(Note 3)
Overclocking Over Clock via BIOS (CPU/PCIE)
Form Factor Micro ATX form factor; 24.4cm x 24.4cm
(Note 2) Whether the CPU Smart FAN Control function is supported will depend on the CPU you install.
For more detailed information please check at the FAQ section on GIGABYTE's website.
(Note 3) EasyTune functions may vary depending on different motherboards.

GA-K8N51GMF-9 Motherboard - 12 -
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 fan heat sink.
4. Please make sure the fan heat sink 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 specifica-
tions 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 hard-
ware 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 Fig. 1 (90oto the plane of the motherboard) prior to inserting the processor. The pin 1 location
is designated on the processor by a copper triangle that corresponds to a triangle marking on the socket
as shown in Fig. 2. Align the processor to the socket and gently lower it into place. Do not force the
processor into the socket.
Fig.1
Position lever at a 90-degree angle.
Socket Lever
Fig.2
Pin 1 location on the socket and processor.
Gently place the CPU into position making sure that the CPU pins fit
perfectly into their holes. Once the CPU is positioned into its 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.

Hardware Installation- 13 -
English
1-3-2 Installation of the Fan Heat Sink
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.
Fig.1
Before installing the fan heat sink, please first add an even layer of heat
sink paste on the surface of the CPU. Install all the fan heat sink
components (Please refer to the heat sink manual for detailed installation
instructions).
Fig.2
Please connect the fan 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.

GA-K8N51GMF-9 Motherboard - 14 -
English
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.
1-4 Installation of Memory
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.

Hardware Installation- 15 -
English
Dual Channel Memory Configuration
The GA-K8N51GMF-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, --:Empty)
2 memory modules
4 memory modules
DDR1 DDR2 DDR3 DDR4
DS/SS DS/SS - - - -
- - - - DS/SS DS/SS
DS/SS DS/SS DS/SS DS/SS
All of the memory configurations below will cause system unable to boot.
(DS: Double Side, SS: Single Side, --: Empty)
If two memory modules are to be used to achieve Dual Channel mode, we recommend
installing them in DDR1 and DDR2 DIMM sockets.
1 memory module
2 memory modules
3 memory modules
DDR1 DDR2 DDR3 DDR4
- - DS/SS - - - -
- - - - - - DS/SS
- - DS/SS DS/SS - -
DS/SS - - -- DS/SS
- - DS/SS - - DS/SS
DS/SS DS/SS DS/SS - -
- - DS/SS DS/SS DS/SS
DS/SS - - DS/SS DS/SS
DS/SS DS/SS - - DS/SS

GA-K8N51GMF-9 Motherboard - 16 -
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:
To install a VGA card or to release an
installed card, users can also press the
latch on the back of the drawable bar as
the picture to the left shows.
Please carefully pull out the small white-
drawable bar at the end of the PCI Ex-
press 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.

Hardware Installation- 17 -
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.
VGA Port
Monitor can be connected to VGA port.
IEEE 1394 Port
Serial interface standard set by Institute of Electrical and Electronics Engineers, which has features
like high speed, high bandwidth and hot plug.
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
The default Line In jack. Devices like CD-ROM, walkman etc. can be connected to Line In jack.
Line Out (Front Speaker Out)
The default Line Out (Front Speaker Out) jack. Stereo speakers, earphone or front surround
speakers can be connected to Line Out (Front Speaker Out) jack.
MIC In
The default MIC In jack. Microphone must be connected to MIC In jack.
Surround Speaker Out (Rear Speaker Out)
The default Surround Speaker Out (Rear Speaker Out) jack. Rear surround speakers can be
connected to Surround Speaker Out (Rear Speaker Out) jack.

GA-K8N51GMF-9 Motherboard - 18 -
English
1-7 Connectors Introduction
Center/Subwoofer Speaker Out
The default Center/Subwoofer Speaker Out jack. Center/Subwoofer speakers can be connected to
Center/Subwoofer Speaker Out jack.
Side Speaker Out
The default Side Speaker Out jack. Surround side speakers can be connected to Side Speaker Out
jack.
In addition to the default speakers settings, the ~audio jacks can be reconfigured to
perform different functions via the audio software. Only microphones still MUST be connected
to the default Mic In jack ( ). Please refer to the 2-/4-/6-/8- channel audio setup steps for
detailed software configuration information.
111241314 15
13
16
6
2
8
10
18
7
9
5
17
1) ATX_12V
2) ATX (Power Connector)
3) CPU_FAN
4) SYS_FAN
5) FDD
6) IDE1 / IDE2
7) SATAII0/1/2/3
8) F_AUDIO
9) F_PANEL
10) CD_IN
11) PWR_LED
12) F_USB1 / F_USB2
13) F1_1394
14) SPDIF_IO
15) COMA
16) CLR_CMOS
17) CI
18) BATTERY

Hardware Installation- 19 -
English
Pin No. Definition
1 GND
2 GND
3 +12V
4 +12V
Pin No. Definition
13 3.3V
14 -12V
15 GND
16 PS_ON(soft On/Off)
17 GND
18 GND
19 GND
20 -5V
21 +5V
22 +5V
23 +5V (Only for 24-pin ATX)
24 GND(Only for 24-pin ATX)
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 +12V(Only for24-pin ATX)
12 3.3V(Onlyfor24-pin ATX)
13 1
24 12
3
1
4
2
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.

GA-K8N51GMF-9 Motherboard - 20 -
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.
Pin No. Definition
1 GND
2 +12V
3 Sense
CPU_FAN
1
SYS_FAN
1
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.
2
34
1
33