Intel GA-8I955X ROYAL, GA-8I955X PRO User Manual

GA-8I955X Royal/ GA-8I955X Pro

Intel® Pentium® Processor Extreme Edition

Intel

Pentium® D / Pentium® 4 LGA775 Processor Motherboard

User's Manual

Rev. 1003 12ME-8I955XRO-1003

April 18, 2005

GA-8I955X Royal

Motherboard

April 18, 2005

GA-8I955X Royal

Motherboard

May 6, 2005

GA-8I955X Pro

Motherboard

May 6, 2005

GA-8I955X Pro

Motherboard

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-8I955X Royal/GA-8I955X Pro 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 Heatsink .............................................................. 12

1-3-1 Installation of the CPU ......................................................................................... 12

1-3-2 Installation of the Heatsink .................................................................................. 13

1-4 Installing/Removing Cool-Plus (Northbridge Cooling Fan) .............................. 14

1-5 Installation of Memory .................................................................................... 14

1-6 Installation of Expansion Cards ...................................................................... 16

1-7 Installation of U-Plus DPS (Universal Plus Dual Power System) ................. 17

1-8 I/O Back Panel Introduction ........................................................................... 18

1-9 Connectors Introduction .................................................................................. 19

Chapter 2 BIOS Setup................................................................................................ 29

The Main Menu (For example: BIOS Ver. : 8I955XRO.F3J) .................................... 30

2-1 Standard CMOS Features ............................................................................. 32

2-2 Advanced BIOS Features .............................................................................. 34

2-3 Integrated Peripherals ..................................................................................... 36

2-4 Power Management Setup ............................................................................. 39

2-5 PnP/PCI Configurations ................................................................................. 40

2-6 PC Health Status ........................................................................................... 41

2-7 MB Intelligent Tweaker(M.I.T.) ....................................................................... 43

2-8 Select Language ............................................................................................. 46

2-9 Load Fail-Safe Defaults ................................................................................... 46

2-10 Load Optimized Defaults ................................................................................. 46

2-11 Set Supervisor/User Password..................................................................... 47

2-12 Save & Exit Setup......................................................................................... 48

2-13 Exit Without Saving ....................................................................................... 48

Only for GA-8I955X Royal.

- 5 -

Chapter 3 Drivers Installation ...................................................................................... 49

3-1 Install Chipset Drivers .................................................................................... 49

3-2 Software Applications ..................................................................................... 50

3-3 Driver CD 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 Recovery Introduction ........................................................................... 55

4-1-3 Flash BIOS Method Introduction ........................................................................ 58

4-1-4 Serial ATA BIOS Setting Utility Introduction ...................................................... 69

4-1-5 Introduction of Designed for Dolby® Master StudioTM........................................ 76

4-1-6 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 77

4-2 Troubleshooting ............................................................................................... 82

Only for GA-8I955X Royal.

- 6 -

GA-8I955X Royal/GA-8I955X Pro Motherboard Layout

COATIAL

OPTICAL

KB_MS

LPT

COMA

USB

LAN2

USB

LAN1

AUDIO1

AUDIO2

Broadcom

5751 phy

F_AUDIO

Broadcom

5751 / 5789 phy

CODEC

CD_IN

RF_ID

VRM_CONN

ATX_12V

PCIE_16

PCI1

PCI2

PCI3

PCIE_1

PCIE_2

CPU_FAN

NB_FAN

Sil3132

LGA775

CLR_CMOS

F1_1394

Intel

955X

SN081BA3

F2_1394

BATTERY

SN082AA2

F2_USB

IT8712F

GA-8I955X Royal (Pro)

DDRII3

SATAII1

SATAII0

DDRII4

Main BIOS

Backup BIOS

IDE2

IDE3

DDRII1

DDRII2

Intel

ICH7R

IT8212F

ATX

PWR_FAN

FDD

IDE1

SATAII3

SATAII2

SYS_FAN

F_PANEL

SPDIF_I

ESATAII1

ESATAII0

GREEN_USB

Only for GA-8I955X Royal. Only for GA-8I955X Pro.

- 7 -

PWR_LED

Block Diagram

PCI-ECLK

(100MHz)

2 PCI Express x 1

PCI-ECLK

(100MHz)

PCI Express Bus

LAN

PCI Bus

SN082AA2

SN081BA3

PCI Express

LAN1

RJ45

Broadcom

5751

RJ45

Broadcom

SiI3132

x16

LAN2

RJ45

Broadcom

5751

5789

IT8212F

LGA775

Processor

Intel 955X

ICH7R

CODEC

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

Host

Interface

DDRII 888

MCHCLK (266/200/133MHz)

Dual BIOS

Intel

IT 8712F

(Note 1)

(Note 2)

/667

/533MHz DIMM

Dual Channel Memory

66MHz 33MHz

14.318MHz 48MHz

4 SATA 3Gb/s

ATA33/66/100 IDE

Channel

Floppy

LPT Port

COM Port

24MHz

33MHz

Line-In

SPDIF In

8 USB

Ports

SPDIF Out

MIC

2 SATA 3Gb/s

Line-Out

3 IEEE1394b

3 PCI

PCICLK(33MHz)

ATA33/66/100/133 IDE Channel

(Note 1) DDR II memory can be overclocked to 888MHz (must be used with an 1066MHz FSB

Side Speaker Out

Surround Speaker Out

Center/Subwoofer Speaker Out

PS/2 KB/Mouse

processor) through overclocking in BIOS. Go to GIGABYTE's website for more information about the supported DDR II memory modules for this feature.

(Note 2) To use a DDR II 667 memory module on the motherboard, you must install an 800/1066MHz

FSB processor.

Only for GA-8I955X Royal. Only for GA-8I955X Pro.

- 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

Motherboard  GA-8I955X Royal or GA-8I955X Pro CPU  Supports LGA775 Intel® Pentium® Processor Extreme Edition/ Pentium® D /

Pentium® 4

 Supports 1066/800/533MHz FSB  L2 cache varies with CPU

Chipset  Northbridge: Intel® 955X Chipset

 Southbridge: Intel® ICH7R  Supported on the Win 2000/XP operating systems

Memory  4 DDR II DIMM memory slots (supports up to 8GB memory)

 Supports dual channel DDR II 888  Supports 1.8V DDR II DIMM  Supports ECC/non-ECC type DRAM

Slots  1 PCI Express x 16 slot

 2 PCI Express x 1 slots  3 PCI slots

IDE Connections  1 port from ICH7R (IDE1) (UDMA 33/ATA 66/ATA 100), allows connection of

2 IDE devices

- Supported on the Win 2000/XP operating systems

 2 port from IT8212F (IDE2/IDE3)(UDMA 33/ATA 66/ATA 100/ATA 133),

allows connection of 4 IDE devices

FDD Connections  1 FDD connection, allows connection of 2 FDD devices Onboard SATA 3Gb/s  4 ports from ICH7R controller (SATAII0, SATAII1, SATAII2, SATAII3)

- Supported on the Win 2000/XP operating systems

 2 ports from Sil3132 controller (ESATAII0, ESATAII1)

- Supported on the Win 2000/XP/Server 2003 operating systems

Peripherals  1 parallel port supporting Normal/EPP/ECP mode

 1 Serial port (COMA)  8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable)  1 front audio connector  3 IEEE1394b ports (requires cable)  1 PS/2 keyboard port  1 PS/2 mouse port

Onboard Audio  ALC882M /ALC882 CODEC (UAJ)

 Supports Jack Sensing function  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

(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) DDR II memory can be overclocked to 888MHz (must be used with an 1066MHz FSB

processor) through overclocking in BIOS. Go to GIGABYTE's website for more information about the supported DDR II memory modules for this feature.

(Note 4) To use a DDR II 667 memory module on the motherboard, you must install an 800/1066MHz

FSB processor.

(Note 1)

(Note 3)/

667

(Note 4)

/533/400 unbuffered DIMM

(Note 2)

Only for GA-8I955X Royal. Only for GA-8I955X Pro.

GA-8I955X Royal/GA-8I955X Pro Motherboard - 10 -

Onboard Audio  SPDIF In connection

 SPDIF Out connection (coaxial+optical)  CD In connection  Supported on the Win 2000/XP operating systems

Onboard LAN  Onboard Broadcom 5751 chip (10/100/1000 Mbit) (LAN1/LAN2)

 Onboard Broadcom 5789 chip (10/100/1000 Mbit)  2 RJ45 ports  Supported on the Win 2000/XP operating systems

I/O Control  IT8712F Hardware Monitor  System voltage detection

 CPU temperature detection  CPU / System / Power fan speed detection  CPU warning temperature  CPU / System/ Power fan failure warning  CPU smart fan control

Onboard IDE RAID  Onboard GigaRAID IT8212F chip

- supports data striping (RAID 0) or mirroring (RAID 1) or striping + mirroring (RAID 0+1) function

- supports JBOD function

- supports concurrent dual ATA133 IDE controller operation

- support ATAPI mode for HDD

- supports IDE bus master operation

- support ATA133/RAID mode switch by BIOS

- displays status and error checking messages during boot-up

- mirroring supports automatic background rebuilds

- Features LBA and Extended Interrupt 13 drive translation in controller onboard BIOS

Onboard SATA 3Gb/s  Onboard Intel

ICH7R chipset

RAID - supports data striping (RAID 0), mirroring (RAID 1), striping + mirroring

(RAID 0+1), or RAID 5

- supports data transfer rate of up to 300 MB/s

- supports hot plugging function (only for AHCI mode)

- supports a maximum of 4 SATA 3Gb/s connections

- supported on the Win 2000/XP operating systems

 Onboard Sil3132 chip

- supports data striping (RAID 0) or mirroring (RAID 1)

- supports data transfer rate of up to 300 MB/s

- supports hot plugging function

- supports a maximum of 2 SATA 3Gb/s connections

- supported on the Win 2000/XP/Server 2003 operating systems

BIOS  Use of licensed AWARD BIOS

 Supports Dual BIOS/Q-Flash/Multilanguage BIOS

Additional Features  Supports U-Plus DPS

 Supports @BIOS  Supports EasyTune 5

(Note 5)

Overclocking  Over Voltage via BIOS (FSB/DDR II/PCIE/CPU)

 Over Clock via BIOS (CPU/DDR II /PCIE)

Form Factor  ATX form factor; 30.5cm x 24.4cm

(Note 5) EasyTune 5 functions may vary depending on different motherboards.

Only for GA-8I955X Royal. Only for GA-8I955X Pro.

Hardware Installation- 11 -

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

- Chipset: An Intel

- 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

Pentium 4 Processor with HT Technology

Chipset that supports HT Technology

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 corner 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-8I955X Royal/GA-8I955X Pro 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 Heatsink

English

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.

Hardware Installation- 13 -

1-4 Installing/Removing Cool-Plus (Northbridge Cooling Fan)

English

Fig.1 To attach Cool-Plus to a heatsink, align the extensions on both sides with the grooves in the heatsink as shown. Firmly press down until it snaps into position.

Fig.3 Before proceeding, first check to make sure that the fan's power cable is disconnected. Then, while applying pressure to the top of the fan, carefully use a screwdriver to dislodge the extension on one side.

Exerting too much pressure on the fan during removal might cause the side extensions to break-off.

Fig.2 Once the fan is properly affixed onto the heatsink, plug the power cable into the NB_FAN connector.

1-5 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.

GA-8I955X Royal/GA-8I955X Pro Motherboard - 14 -

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.

Dual Channel DDR II

GA-8I955X Royal/Pro supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will double.

English

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 memory cannot be used if one or three DDR II memory modules are installed.

2. To enable Dual Channel mode with 2 or 4 memory modules, it is recommended to use memory modules of identical brand, size, chips, and speed.

We'll strongly recommend our user to slot two DDR II memory modules into the DIMMs of the same color in order for Dual Channel Technology to work.

The following table is for Dual Channel Technology combination: (DS: Double Side, SS: Single Side)

DDR II 1 DDR II 2 DDR II 3 DDR II 4

2 memory modules

4 memory modules

DS/SS X DS/SS X

X DS/SS X DS/SS

DS/SS DS/SS DS/SS DS/SS

Hardware Installation- 15 -

English

1-6 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 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 latch at the end of the PCI Express x 16 slot. When you try uninstall the VGA card, please gently press the latch as the picture to the left shows to release the card.

GA-8I955X Royal/GA-8I955X Pro Motherboard - 16 -

1-7 Installation of U-Plus DPS (Universal Plus Dual Power System)

The U-Plus Dual Power System (U-Plus D.P.S.) is a revolutionary eight-phase power circuit built for ultimate system protection. Designed to withstand varying current levels and changes, the U-Plus DPS provides an immensely durable and stable power circuit to the CPU for solid system stability. These characteristics make it the ideal companion with the latest LGA775 Intel as future Intel® processors. As well, 4 blue LED's are mounted on the U-Plus D.P.S. for intelligent indication of system loading.

The U-Plus DPS can work in a Dual Power System: Parallel Mode-U-Plus DPS and motherboard CPU power can work simultaneously, providing a total of 8-phase power circuit.

How to install U-Plus DPS?

1. The U-Plus DPS socket (VRM_CONN) has a notch, so the U-Plus DPS can only fit in one direction.

2. Insert the U-Plus DPS vertically into the socket and then push it down.

3. Fix the U-Plus DPS on the motherbard with the clip.

4. Reverse the installation steps if you want to remove the U-Plus DPS.

Pentium® 4 Processor as well

English

Only for GA-8I955X Royal.

Hardware Installation- 17 -

English

1-8 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.

COATIAL (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.

COMA (Serial Port)

Connects to serial-based mouse or data processing devices.

LAN Port 2 / LAN Port 1

The provided Internet connection is Gigabit Ethernet (PCI Express Gigabit), 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 sureyour 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)

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.

Only for GA-8I955X Royal.

GA-8I955X Royal/GA-8I955X Pro Motherboard - 18 -

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.

1-9 Connectors Introduction

English

13 14

1) ATX_12V

2) ATX (Power Connector)

3) CPU_FAN

4) SYS_FAN

5) PWR_FAN

6) NB_FAN

7) FDD

8) IDE1/IDE2/IDE3

9) SATAII0/SATAII1/SATAII2/SATAII3

10) ESATAII0/ESATAII1

11) F_PANEL

Only for GA-8I955X Royal.

8 19 21

17 9

11 20

1516

12) F_AUDIO

13) CD_IN

14) SPDIF_I

15) F_USB2/GREEN_USB

16) F1_1394 / F2_1394

17) CLR_CMOS

18) RF_ID

19) C I

20) PWR_LED

21) BAT

Hardware Installation- 19 -

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. 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

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 +12V

12 3.3V

(Only for 24pins ATX)

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

24 GND

GA-8I955X Royal/GA-8I955X Pro Motherboard - 20 -

3/4/5) CPU_FAN / SYS_FAN/ PWR_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

CPU_FAN

SYS_FAN

PWR_FAN

1 GND

2 +12V

3 Sense

4 Speed Control

(Only for CPU_FAN)

English

6) NB_FAN (Chip Fan Power Connector)

If you installed wrong direction, the chip fan will not work. Sometimes will damage the chip fan. (Usually black cable is GND)

Pin No. Definition

1 +12V

2 GND

Hardware Installation- 21 -

English

7) 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.

8) IDE1/IDE2/IDE3 (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).

3940

IDE2/3

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IDE1

9) SATAII0/1/2/3 (SATA 3Gb/s Connectors, Controlled by ICH7R)

10) ESATAII0/1 (SATA 3Gb/s Connectors, Controlled by Sil3132)

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

2 TXP

3 TXN

(controlled by ICH7R)

4 GND

5 RXN

6 RXP

7 GND

(controlled by Sil3132)

Only for GA-8I955X Royal.

11) 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.

PW-

MSG-

RES+

RES-

HD-

HD+

Speaker Connector

Power Switch

Message LED/

Power/

Sleep LED

SPEAK-

SPEAK+

PW+

MSG+

Reset Switch

IDE Hard Disk

Active LED

English

HD (IDE Hard Disk Active LED) (Blue) Pin 1: LED anode(+)

Pin 2: LED cathode(-)

SPEAK (Speaker Connector) (Amber) Pin 1: Power

Pin 2- Pin 3: NC

Pin 4: Data(-)

RES (Reset Switch) (Green) Open: Normal

Close: Reset Hardware System

PW (Power Switch) (Red) Open: Normal

Close: Power On/Off

MSG(Message LED/Power/Sleep LED) Pin 1: LED anode(+)

(Yellow) Pin 2: LED cathode(-)

NC ( Purple) NC

Hardware Installation- 23 -

English

12) F_AUDIO (Front Audio Connector)

This connector supports either HD (High Definition) or AC97 front panel audio module. If you wish to use the front audio function, connect the front panel audio module to this connector. Check the pin assignments carefully while you connect the front panel audio module. Incorrect connection between the module and connector will make the audio device unable to work or even damage it. For optional front panel audio module, please contact your chassis manufacturer.

By default, the audio driver is configured to support HD Audio. To connect an AC97 front panel audio module to this connector, please refer to the instructions on Page 81 about the software settings.

13) CD_IN (CD IN)

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

HD Audio:

Pin No. Definition

1 MIC2_L

2 GND

3 MIC2_R

910

4 -ACZ_DET

5 Line2_R

6 FSENSE1

7 FAUOIO_JD

8 No Pin

9 LINE2_L

10 FSENSE2

AC'97 Audio:

Pin No. Definition

1 MIC

2 GND

3 MIC Power

4NC

5 Line Out (R)

6NC

7NC

8 No Pin

9 Line Out (L)

10 NC

Pin No. Definition

1 CD-L

2 GND

3 GND

4 CD-R

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14) SPDIF_I (SPDIF In)

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

English

Pin No. Definition

1 Power

2 SPDIFI

3 GND

15) F_USB2/GREEN_ USB (Front USB Connector)

Be careful with the polarity of the front USB connector. Check the pin assignments 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. The GREEN_USB connector provides no standby power when system is off and it does not support USB device to wake up from S3 mode. Users who wish to shut down the standby power this connector via the optional front USB cable.

(note)

for their USB devices during system power-off can connect the devices to

Pin No. Definition

1 Power

2 Power

3 USB DX-

4 USB Dy-

5 USB DX+

6 USB Dy+

7 GND

8 GND

9 No Pin

10 NC

(Note) When the standby power is shut down, USB devices (example: optical mouses) will not light

on during system power-off.

Hardware Installation- 25 -

English

16) F1_1394/F2_1394 (IEEE 1394 Connectors)

Serial interface standard set by Institute of Electrical and Electronics Engineers, which has features like high speed, highbandwidth and hot plug. Be careful with the polarity of the IEEE1394 connector. Check the pin assignment carefully while you connect the IEEE1394 cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional IEEE1394 cable, please contact your local dealer. IEEE1394b can approach the maximum speed to 800Mb/S, but the speed can be achieved only when you use particular IEEE1394b cable.

F2_1394

F1_1394

Pin No. Definition

1 TPA0+

2 TPA0-

3 GND

4 GND

5 TPB0+

6 TPB0-

7 No Pin

8 Power

9 Power

10 GND

Pin No. Definition

1 Power

2 Power

3 TPA1+

4 TPA1-

5 GND

6 GND

7 TPB1+

8 TPB1-

9 Power

10 Power

11 TPA2+

12 TPA2-

13 GND

14 No Pin

15 TPB2+

16 TPB2-

17) 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.

GA-8I955X Royal/GA-8I955X Pro Motherboard - 26 -

Open: Normal

Short: Clear CMOS

18) 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.

Pin No. Definition

1 Power

2 RFID_RI-

3 RF_TXD

4 RF_RXD

5NC

6 GND

19) 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 Open" status in BIOS Setup.

English

Pin No. Definition

1 Signal

2 GND

Hardware Installation- 27 -

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