Intel GA-8N775 User Manual

7.36 Mb
Loading...

GA-8N775

Intel® Pentium® 4 LGA775 Processor Motherboard

User's Manual

Rev. 1002 12ME-8N775-1002R

*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-8N775

Motherboard

GA-8N775

Dec. 9, 2005

Dec. 9, 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 "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-8N775 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 Heatsink ..............................................................

12

1-3-1 Installation of the CPU .........................................................................................

12

1-3-2 Installation of the Heatsink ..................................................................................

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. : E5) .......................................................

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

MB Intelligent Tweaker(M.I.T.) .......................................................................

44

2-8

Load Fail-Safe Defaults ...................................................................................

46

2-9

Load Optimized Defaults .................................................................................

46

2-10

Set Supervisor/User Password .....................................................................

47

2-11

Save & Exit Setup .........................................................................................

48

2-12

Exit Without Saving .......................................................................................

48

- 4 -

Chapter 3 Drivers Installation ......................................................................................

49

3-1

Install Chipset Drivers ....................................................................................

49

3-2

SoftwareApplication .......................................................................................

50

3-3

Software Information .......................................................................................

50

3-4

Hardware Information .....................................................................................

51

3-5

Contact Us .....................................................................................................

51

Chapter 4 Appendix ...................................................................................................

53

4-1

Unique Software Utilities ................................................................................

53

 

4-1-1

EasyTune 5 Introduction .....................................................................................

54

 

4-1-2

Xpress Recovery2 Introduction .........................................................................

55

 

4-1-3

Flash BIOS Method Introduction ........................................................................

57

 

4-1-4 Configuring SATA Hard Drive(s) ........................................................................

66

 

4-1-5

2- / 4- / 6- / 8- Channel Audio Function Introduction ......................................

80

4-2

Troubleshooting ...............................................................................................

84

- 5 -

GA-8N775 Motherboard Layout

KB_MS

 

COAXIAL

 

SPDIF_O

 

LPT

 

COMA

 

USB

LAN

USB

 

CPU_FAN

AUDIO1

 

 

AUDIO2

Marvell

88E1111/

 

 

88E1115 ATX_12V

F_AUDIO

PCIE_1

 

 

 

 

PCIE_16

 

BIOS

 

 

 

PCIE_2

CODEC

IN

 

 

_

PCIE_3

 

SPDIF

IN

 

 

RF_ID

CD

 

 

 

 

IT8712F

 

 

 

CI

LGA775

nVIDIA® Crush 19

PCI1

PCI2

GA-8N775

F USB1

F USB2

F USB3

ATX

FDD

DDRII1 DDRII2

DDRII3 DDRII4

IDE2 IDE1

 

 

nVIDIA® MCP-04

SYS_FAN

CLR_CMOS

BATTERY

SATAII2_3

SATAII0_1

PWR_LED

F_PANEL

- 6 -

Block Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LGA775

 

 

CPUCLK+/-(1066/800/533MHz)

1 PCIE x 16

 

 

 

 

 

 

 

Processor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI-ECLK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host

 

 

DDRII 667/533MHz DIMM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interface

 

 

(100MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI Express x 16 Bus

 

 

 

 

 

 

 

 

Dual Channel Memory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NBCLK (25MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI Express Bus

 

nVIDIA®

 

 

HCLK+/- (133/200/266MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Crush 19

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCI-ECLK

 

 

 

x 1

 

 

 

x 1

 

 

x 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(100MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33MHz

 

3 PCI Express x 1

 

 

 

 

25MHz

 

 

 

 

 

 

 

48MHz

 

LAN

Marvell

 

 

BIOS

ROMCLK33MHz

 

 

 

 

 

 

 

 

 

 

4 SATA 3Gb/s

 

RJ45

88E1111/

nVIDIA®

 

 

 

 

ATA33/66/100/133

 

88E1115

MCP-04

 

 

 

 

 

IDE Channels

 

 

 

 

 

 

 

Floppy

PCI Bus

 

 

 

 

 

 

 

 

 

LPC BUS

IT8712F

LPT Port

 

 

 

 

 

 

 

 

 

 

24 MHz

 

 

COM Port

 

 

CODEC

 

 

 

 

 

 

 

 

 

 

 

PS/2 KB/Mouse

2 PCI

Speaker Out Speaker Out Speaker Out

MIC Line-Out Line-In SPDIF In

SPDIF Out

 

33 MHz

 

 

10 USB

 

 

 

 

 

 

Ports

 

 

 

PCICLK

24.576MHz

 

 

 

(33MHz)

Surround Center/Subwoofer Side

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 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.

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.

English

- 9 -

Hardware Installation

English

1-2 Feature Summary

CPU

 

Supports LGA775 Intel® Pentium® 4 Processor (Note 1)

 

 

L2 cache varies with CPU

Front Side Bus

 

Supports 1066/800/533MHz FSB

 

Chipset

 

Northbridge: nVIDIA® Crush 19 Chipset

 

 

 

Southbridge: nVIDIA® MCP-04

LAN

 

Onboard Marvell 88E1111/88E1115 chip (10/100/1000 Mbit)

 

Audio

 

Onboard Realtek ALC850 chip

 

 

Supports 2 / 4 / 6/ 8 channel audio

 

Supports SPDIF In/Out connection

 

Supports CD In connection

Storage

 

nVIDIA® MCP-04 Southbrigde

 

 

 

- 1 FDD connector, allowing connection of 2 FDD devices

 

 

- 2 IDE connectors (IDE1, IDE2) with UDMA 33/ATA 66/ATA 100/ATA 133

 

 

suppport, allowing connection of 4 IDE devices

 

 

- 4 SATA 3Gb/s connectors (SATAII0_1, SATAII2_3), allowing connection

 

 

of 4 SATA 3Gb/s devices

 

 

- Supports data striping (RAID 0), mirroring (RAID 1),

 

 

striping + mirroring (RAID 0+1), and RAID 5 for Serial ATA

O.S Support

 

Microsoft Windows 2000/XP

 

Memory

 

4 DDR II DIMM memory slots (supports up to 8GB memory) (Note 2)

 

 

Supports dual channel DDR II 667 (Note 3)/533 unbuffered DIMMs

 

Supports 1.8V DDR II DIMMs

 

 

 

 

Expanstion Slots

 

1 PCI Express x 16 slot

 

3 PCI Express x 1 slots

 

 

2 PCI slots

Internal Connectors

 

1 24-pin ATX power connector

 

 

1 4-pin ATX 12V power connector

 

 

1 floppy connector

 

 

2 IDE connectors

 

 

4 SATA 3Gb/s connectors

 

1 CPU fan connector

1 system fan connector1 front panel connector1 front audio connector1 CD In connector

1 SPDIF In connector

3 USB 2.0/1.1 connectors for additional 6 ports by cables1 RF_ID connector

GA-8N775 Motherboard

- 10 -

Rear Panel I/O

 

1 PS/2 keyboard port

 

1 PS/2 mouse port

 

 

1 parallel port

 

2 SPDIF Out ports (coaxial and optical)

 

1 serial port (COMA)

 

4 USB 2.0/1.1 ports

 

 

1 RJ-45 port

 

6 audio jacks (Line In / Line Out / MIC In / Surround Speaker Out (Rear

 

 

Speaker Out) / Center/Subwoofer Speaker Out / Side Speaker Out)

 

 

 

I/O Control

 

IT8712F chip

Hardware Monitor

 

System voltage detection

 

 

CPU temperature detection

 

CPU / System fan speed detection

 

 

CPU warning temperature

 

CPU / System fan failure warning

 

CPU smart fan control

BIOS

 

1 4Mbit flash ROM

 

Use of licensed AWARD BIOS

Additional Features

 

Supports @BIOS

 

 

Supports Download Center

 

 

Supports Q-Flash

 

Supports EasyTune (Note 4)

 

 

Supports Xpress Install

 

 

Supports Xpress Recovery2

 

 

Supports Xpress Rescue

Bundle Software

 

Norton Internet Security (OEM version)

Form Factor

 

ATX form factor; 30.5cm x 24.4cm

(Note 1) For further CPU support information, please go to GIGABYTE's website.

(Note 2) 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, 8 GB of memory size will instead be shown as 7.xxGB memory during system startup.

(Note 3) To use a DDR II 667 memory module on the motherboard, you must install an 800/1066MHz FSB processor.

(Note 4) EasyTune functions may vary depending on different motherboards.

English

- 11 -

Hardware Installation

English

1-3 Installation of the CPU and Heatsink

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.

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: A VIA 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

 

Fig. 2

 

 

Gently lift the metal

Remove the plastic

 

 

 

 

 

 

lever located on the

covering on the CPU

 

 

 

CPU socket to the

socket.

 

 

 

upright position.

 

 

 

 

Fig. 3

 

Fig. 4

 

 

 

Notice the small gold

Once the CPU is

 

 

 

c o l o r e d t r i a n g l e

p r o p e r l y i n s e r t e d ,

 

 

 

located on the edge of

please replace the

 

 

 

t h e

C P U

s o c k e t .

load plate and push the

 

 

 

Align

the

indented

metal lever back into

 

 

 

corner of the CPU with

its original position.

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-8N775 Motherboard

 

 

- 12 -

 

1-3-2 Installation of the Heatsink

Male Push Pin

The top of Female Push Pin

Female Push Pin

Fig.1

Please apply an even layer of heatsink paste on the surface of the installed CPU.

Fig. 3

Place the heatsink 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 heatsink, 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 heatsink installation section of the user manual)

Fig. 6

Finally, please attach the power connector of the heatsink to the CPU fan header located on the motherboard.

The heatsink may adhere to the CPU as a result of hardening of the heatsink 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 heatsink.

English

- 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 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-8N775 Motherboard

- 14 -

Dual Channel Memory Configuration

The GA-8N775 supports the Dual Channel Technology. After operating the

Dual Channel Technology, the bandwidth of Memory Bus will add double.

GA-8N775 includes 4 DIMM sockets, and each Channel has two DIMM sockets as following:

Channel A : DDR II 1, DDR II 2

Channel B : DDR II 3, DDR II 4

If you want to operate the Dual Channel Technology, please note the following explanations due to the limitation of Intel chipset specifications.

1.Dual Channel mode will not be enabled if only one DDR II memory module is installed.

2.To enable Dual Channel mode with two or four 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.

The following is a Dual Channel Memory configuration table: (DS: Double Side, SS: Single Side)

 

DDR II 1

DDR II 2

DDR II 3

DDR II 4

2 memory modules

DS/SS

X

DS/SS

X

 

X

DS/SS

X

DS/SS

4 memory modules

DS/SS

DS/SS

DS/SS

DS/SS

 

 

 

 

 

English

- 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-8N775 Motherboard

- 16 -

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).

LPT (Parallel Port)

The parallel port allows connection of a printer, scanner and other peripheral devices.

COAXIAL (SPDIF_O)

The SPDIF coaxial output port is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby Digital Decoder via a coaxial cable.

OPTICAL (SPDIF_O)

The SPDIF optical output port is capable of providing digital audio to external speakers or compressed AC3 data to an external Dolby Digital Decoder via an optical cable.

COM A (Serial Port)

Connects to serial-based mouse or data processing devices.

LAN Port

The provided Internet connection is Gigabit Ethernet, providing data transfer speeds of 10/100/ 1000Mbps.

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.

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)

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.

English

- 17 -

Hardware Installation

English

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.

1-7 Connectors Introduction

3

2

5

6

11

1

 

 

 

 

4

12

 

 

 

15

 

 

 

9

13

 

 

 

 

 

 

 

 

7

16

17

14

8

10

1)

ATX_12V

10)

F_PANEL

2)

ATX (Power Connector)

11)

F_AUDIO

3)

CPU_FAN

12)

CD_IN

4)

SYS_FAN

13)

SPDIF_IN

5)

FDD

14)

F_USB1 / F_USB2 / F_USB3

6)

IDE1 / IDE2

15)

CLR_CMOS

7)

SATAII0_1 / SATAII2_3

16)

CI

8)

PWR_LED

17)

RF_ID

9)

BATTERY

 

 

GA-8N775 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.

Definition

3

4

1

GND

2

GND

1

2

3

+12V

 

 

4

+12V

English

13

1

Pin No.

Definition

Pin No.

Definition

 

 

1

3.3V

13

3.3V

 

 

2

3.3V

14

-12V

 

 

3

GND

15

GND

 

 

4

+5V

16

PS_ON(soft On/Off)

 

 

5

GND

17

GND

 

 

6

+5V

18

GND

 

 

7

GND

19

GND

 

 

8

Power Good

20

-5V

 

 

9

5V SB(stand by +5V)

21

+5V

 

 

10

+12V

22

+5V

24

12

11

+12V(Only for 24-pin ATX)

23

+5V (Only for 24-pin ATX)

12

3.3V(Only for 24-pin ATX)

24

GND(Only for 24-pin ATX)

 

 

- 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/4-pin (only for 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).

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

1

GND

 

 

 

 

 

 

 

 

 

2

+12V

 

CPU_FAN

3

Sense

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

4

Speed Control

 

 

 

 

 

 

(Only for CPU_FAN)

 

 

 

 

 

 

 

 

 

SYS_FAN

 

 

 

 

 

 

5)FDD (Floppy 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-8N775 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). To ensure that an IDE CD-ROM drive can work properly, please attach it to the IDE 1 / IDE 2 connector.

40

39

2

1

IDE2 IDE1

7)SATAII0_1 / SATAII2_3 (SATA 3Gb/s Connectors, Controlled by MCP-04)

SATA 3Gb/s can provide up to 300MB/s transfer rate. Please refer to the BIOS setting for the SATA 3Gb/s and install the proper driver in order to work properly.

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin No.

Definition

 

 

 

 

 

 

 

 

 

 

 

 

 

1

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

1

2

TXP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

TXN

1

 

 

 

 

 

 

 

 

 

 

 

7

4

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

5

RXN

 

 

 

 

 

 

 

 

 

 

 

 

 

6

RXP

 

 

 

 

 

 

 

 

 

 

 

 

 

7

GND

English

- 21 -

Hardware Installation

English

8)PWR_LED

PWR_LED 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-

9) 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.Take out the battery gently and put it aside for about 10 minutes (Or you can use a metal object to connect the positive and negative pins in the battery holder to make them short for one minute).

3.Re-install the battery.

4.Plug the power cord and turn ON the computer.

GA-8N775 Motherboard

- 22 -

10)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/

 

 

Speaker Connector

 

Power

 

 

Power/

 

 

 

Sleep LED

 

Switch

 

 

MSG+ MSGPW+ PW-

SPEAK+

SPEAK-

2

 

 

 

20

1

 

 

 

19

HD-

 

RES+

 

 

HD+

RES-

NC

 

 

Reset Switch

IDE Hard Disk Active LED

HD (IDE Hard Disk Active LED)

Pin 1: LED anode(+)

(Blue)

Pin 2: LED cathode(-)

 

 

SPEAK (Speaker Connector)

Pin 1: Power

(Amber)

Pin 2- Pin 3: NC

 

Pin 4: Data(-)

 

 

RES (Reset Switch)

Open: Normal

(Green)

Close: Reset Hardware System

 

 

PW (Power Switch)

Open: Normal

(Red)

Close: Power On/Off

 

 

MSG (Message LED/Power/Sleep LED)

Pin 1: LED anode(+)

(Yellow)

Pin 2: LED cathode(-)

 

 

NC ( Purple)

NC

 

 

English

- 23 -

Hardware Installation

English

11)F_AUDIO (Front Audio Panel Connector)

If you want to use Front Audio connector, you must remove 5-6, 9-10 Jumper. In order to utilize the front audio header, your chassis must have front audio connector. Also please make sure the pin assignments for the cable are the same as the pin assignments for the front audio header. To find out if the chassis you are buying support front audio connector, please contact your dealer. Please note, you can have the alternative of using front audio connector or of using rear audio connector to play sound.

 

 

Pin No.

Definition

10

9

1

MIC

2

GND

 

 

2

1

3

MIC_BIAS

4

Power

 

 

 

 

5

FrontAudio(R)

 

 

6

Rear Audio (R)/ Return R

 

 

7

NC

 

 

8

No Pin

 

 

9

FrontAudio (L)

 

 

10

Rear Audio (L)/ Return L

12)CD_IN (CD IN)

Connect CD-ROM or DVD-ROM audio out to the connector.

 

1

 

Pin No.

Definition

 

 

1

CD-L

 

 

 

 

 

 

 

 

 

 

 

2

GND

 

 

 

 

 

3

GND

 

 

 

 

 

 

 

 

 

 

4

CD-R

 

 

 

 

 

GA-8N775 Motherboard

- 24 -

13)SPDIF_I (SPDIF In Connector)

Use SPDIF IN feature only when your device has digital output function. Be careful with the polarity of the SPDIF_I 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.

 

1

 

Pin No.

Definition

 

 

 

1

Power

 

 

 

 

 

2

SPDIFI

 

 

 

3

GND

 

 

 

 

 

14)F_ USB1 / F_USB2 / F_USB3 (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.

Definition

10

9

1

Power(5V)

2

Power(5V)

 

 

2

1

3

USB DX-

4

USB Dy-

 

 

5

USB DX+

 

 

6

USB Dy+

 

 

7

GND

 

 

8

GND

 

 

9

No Pin

 

 

10

NC

 

 

 

 

English

- 25 -

Hardware Installation

English

15)CLR_CMOS (Clear CMOS)

You may clear the CMOS data to its default values by this header. To clear CMOS, temporarily short 1-2 pin. Default doesn't include the jumper to prevent from improper use of this header.

1

Open: Normal

1

Short: Clear CMOS

16)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

Signal

1

2

GND

GA-8N775 Motherboard

- 26 -

17)RF_ID

This connector allows you to connect external devices to use extra function. Check the pin assignments before you connect the external device cable. Please contact your nearest dealer for the optional GIGABYTE external device.

2

6

Pin No.

Definition

1

Power

 

 

 

 

2

RFID_RI-

1

5

3

RF_TXD

 

 

4

RF_RXD

 

 

5

No Pin

 

 

6

GND

 

 

 

 

English

- 27 -

Hardware Installation

+ 61 hidden pages