Page 3
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.
Table of Contents GA-8I915PC Duo Motherboard Layout ... 6 Block Diagram ... 7 Chapter 1 Hardware Installation ... 9 Considerations Prior to Installation ... 9 Feature Summary ... 10 Installation of the CPU and Heatsink ... 12 1-3-1 Installation of the CPU ... 12 1-3-2 Installation of the Heatsink ...
Block Diagram PCI-ECLK (100MHz) PCI-ECLK (100MHz) PCI Express x16 PCI Express x1 Bus PCI Bus Marvell 8001 RJ45 3 PCI PCICLK (33MHz) (Note) To use a DDRII 600 memory module on the motherboard, you must install an 800MHz FSB processor and overclock in BIOS. CPUCLK+/-(200/133MHz) LGA775 Processor...
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. - 9 - Hardware Installation...
Onboard Marvell 8001 chip (10/100/1000 Mbit) 1 RJ 45 port (Note) To use a DDRII 600 memory module on the motherboard, you must install an 800MHz FSB processor and overclock in BIOS. GA-8I915PC Duo Motherboard Pentium 4 LGA775 CPU ®...
Page 11
Onboard Audio ALC850 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 Supports SPDIF In/Out connection CD In...
Avoid twisting or bending motions that might cause damage to the CPU during installation.) GA-8I915PC Duo Motherboard Fig. 2 Remove the plastic covering on the CPU socket.
1-3-2 Installation of the Heatsink 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.
The motherboard supports DDR II & 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. GA-8I915PC Duo Motherboard Notch DDR II Fig.1...
Page 15
GA-8I915PC Duo supports the Dual Channel Technology. After operating the Dual Channel Technology, the bandwidth of Memory Bus will add double. GA-8I915PC Duo includes 4 DIMM sockets, and each Channel has two DIMM sockets as following: Channel A : DDR 1...
Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS. Install related driver from the operating system. Installing a PCI Express x 16 expansion card: GA-8I915PC Duo Motherboard Please carefully pull out the small white- drawable bar at the end of the PCI Express x 16 slot when you try to install/Uninstall the VGA card.
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. COM A/COM B (Serial Port) Connects to serial-based mouse or data processing devices.
Page 19
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.
Page 20
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. GA-8I915PC Duo Motherboard Pin No. Definition...
Page 21
6) IDE1 (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).
SPEAK (Speaker Connector) (Amber) RES (Reset Switch) (Green) PW (Power Switch) (Red) MSG(Message LED/Power/Sleep LED) (Yellow) NC( Purple) GA-8I915PC Duo Motherboard Speaker Connector Message LED/ Power Power/ Switch Sleep LED Reset Switch IDE Hard Disk Active LED Pin 1: LED anode(+)
Page 23
9) PWR_LED PWR_LED is connect with the system power indicator to indicate whether the system is on/off. It will blink when the system enters suspend mode. 10) F_AUDIO (Front Audio 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.
Page 24
Be careful with the polarity of the SPDIF_IO connector. Check the pin assignment carefully while you connect the SPDIF cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional SPDIF cable, please contact your local dealer. GA-8I915PC Duo Motherboard Pin No. Definition CD-L CD-R Pin No.
Page 25
13) F_ USB1 / F_USB2 (Front USB Connector) Be careful with the polarity of the front USB connector. Check the pin assignment carefully while you connect the front USB cable, incorrect connection between the cable and connector will make the device unable to work or even damage it. For optional front USB cable, please contact your local dealer.
Page 26
16) CLR_CMOS (Clear CMOS) You may clear the CMOS data to its default values by this jumper. To clear CMOS, temporarily short 1-2 pin. Default doesn't include the "Shunter" to prevent from improper use this jumper. GA-8I915PC Duo Motherboard Pin No. Definition...
Page 27
17) BAT(Battery) Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's instructions. If you want to erase CMOS... 1.Turn OFF the computer and unplug the power cord. 2.Remove the battery, wait for 30 second.
BIOS needs to be reset to its original settings. If you wish to upgrade to a new BIOS, either Gigabyte's Q-Flash or @BIOS utility can be used. Q-Flash allows the user to quickly and easily update or backup BIOS without entering the operating system.
This setup page is control CPU clock and frequency ratio. Load Fail-Safe Defaults Fail-Safe Defaults indicates the value of the system parameters which the system would be in safe configuration. GA-8I915PC Duo Motherboard Load Fail-Safe Defaults Load Optimized Defaults Set Supervisor Password Set User Password Save &...
Load Optimized Defaults Optimized Defaults indicates the value of the system parameters which the system would be in best performance configuration. Set Supervisor Password Change, set, or disable password. It allows you to limit access to the system and Setup, or just to Setup. Set User Password Change, set, or disable password.
Page 32
(3.5 inch when 3 Mode is Enabled). 720K, 3.5" 3.5 inch double-sided drive; 720K byte capacity 1.44M, 3.5" 3.5 inch double-sided drive; 1.44M byte capacity. 2.88M, 3.5" 3.5 inch double-sided drive; 2.88M byte capacity. GA-8I915PC Duo Motherboard - 32 -...
Page 33
Floppy 3 Mode Support (for Japan Area) Disabled Normal Floppy Drive. (Default value) Drive A Drive A is 3 mode Floppy Drive. Drive B Drive B is 3 mode Floppy Drive. Both Drive A & B are 3 mode Floppy Drives. Halt on The category determines whether the computer will stop if an error is detected during power up.
Select your boot device priority by USB-HDD. Select your boot device priority by LAN. Disabled Disable this function. (Note) This item will show up when you install a processor which supports this function. GA-8I915PC Duo Motherboard Advanced BIOS Features [Press Enter] [Floppy] [Hard Disk]...
Page 35
Password Check Setup The system will boot but will not access to Setup page if the correct password is not entered at the prompt. (Default value) System The system will not boot and will not access to Setup page if the correct password is not entered at the prompt.
SATA Port 1/3 Set to This value will auto make by the setting "On-Chip SATA Mode" and "PATA IDE Set to". If PATA IDE were set to Ch. 0 Master/Slave,this function will auto set to Ch. 1 Master/Slave. GA-8I915PC Duo Motherboard Integrated Peripherals [Enabled] [Auto] Ch.0 Master/Slave...
Page 37
USB Controller Enabled Enable USB Controller. (Default value) Disabled Disable USB Controller. USB 2.0 Controller Disable this function if you are not using onboard USB 2.0 feature. Enabled Enable USB 2.0 Controller. (Default value) Disabled Disable USB 2.0 Controller. USB Keyboard Support Enabled Enable USB Keyboard Support.
Page 38
Using Parallel port as Extended Capabilities Port. ECP+EPP Using Parallel port as ECP & EPP mode. ECP Mode Use DMA Set ECP Mode Use DMA to 3. (Default value) Set ECP Mode Use DMA to 1. GA-8I915PC Duo Motherboard - 38 -...
Power Management Setup CMOS Setup Utility-Copyright (C) 1984-2004 Award Software ACPI Suspend Type Soft-Off by PWR-BTTN PME Event Wake Up Power On by Ring Resume by Alarm x Date (of Month) Alarm x Time (hh:mm:ss) Alarm Power On By Mouse Power On By Keyboard x KB Power ON Password AC Back Function...
Page 40
When AC-power back to the system, the system will be in "Off" state. (Default value) Full-On When AC-power back to the system, the system always in "On" state. Memory When AC-power back to the system, the system will return to the Last state before AC-power off. GA-8I915PC Duo Motherboard - 40 -...
Monitor CPU temperature at 90 Disabled Disable this function. (Default value) CPU/SYSTEM FAN Fail Warning Disabled Fan warning function disable. (Default value) Enabled Fan warning function enable. GA-8I915PC Duo Motherboard PC Health Status [Disabled] 4687 RPM [Disabled] [Disabled] [Disabled] [Enabled]...
CPU Smart FAN Control Disabled Disable this function. Enabled Enable CPU Smart Fan control function. (Default value) a. When the CPU temperature is higher than 65 degrees Celsius, CPU fan will run at full speed. b. The speed of CPU fan will increase linearly depand on the temperature if the temperature is more than 41 degree and less than 65 degree.
Page 44
FSB(Front Side Bus) frequency=533MHz, Memory Frequency = Host clock X 2.5. Memory Frequency = Host clock X 3. Memory Frequency = Host clock X 4. Auto Set Memory frequency by DRAM SPD data. (Default value) GA-8I915PC Duo Motherboard - 44 -...
Page 45
for FSB(Front Side Bus) frequency=800MHz, 1.66 Memory Frequency = Host clock X 1.66. 2.00 Memory Frequency = Host clock X 2. 2.66 Memory Frequency = Host clock X 2.66. 3.00 Memory Frequency = Host clock X 3. (Note) Auto Set Memory frequency by DRAM SPD data. (Default value) Memory Frequency (Mhz) The values depend on "Memory Frequency For"...
MB Intelligent Tweaker(M.I.T.) ESC: Quit F8: Q-Flash Selecting this field loads the factory defaults for BIOS and Chipset Features which the system automatically detects. GA-8I915PC Duo Motherboard Load Fail-Safe Defaults Load Optimized Defaults Set Supervisor Password Set User Password Load Fail-Safe Defaults (Y/N)? N Save &...
2-10 Set Supervisor/User Password CMOS Setup Utility-Copyright (C) 1984-2004 Award Software Standard CMOS Features Advanced BIOS Features Integrated Peripherals Power Management Setup PnP/PCI Configurations Enter Password: PC Health Status MB Intelligent Tweaker(M.I.T.) ESC: Quit F8: Q-Flash Selecting this field loads the factory defaults for BIOS and Chipset Features which the system automatically detects.
MB Intelligent Tweaker(M.I.T.) ESC: Quit F8: Q-Flash Type "Y" will quit the Setup Utility without saving to RTC CMOS. Type "N" will return to Setup Utility. GA-8I915PC Duo Motherboard Load Fail-Safe Defaults Load Optimized Defaults Set Supervisor Password Set User Password Save &...
Chapter 3 Install Drivers Pictures below are shown in Windows XP. Insert the driver CD-title that came with your motherboard into your CD-ROM drive, the driver CD-title will auto start and show the installation guide. If not, please double click the CD-ROM device icon in "My computer", and execute the Run.exe.
Software Applications This page displays all the tools that Gigabyte developed and some free software, you can choose anyone you want and press "install" to install them. Driver CD Information This page lists the contents of software and drivers in this CD-title.
Hardware Information This page lists all device you have for this motherboard. Contact Us Please see the last page for details. - 51 - Install Drivers...
Motherboard Intelligent Tweaker (M.I.T.) allows user to access and change BIOS feature settings with relative speed and ease. Through GIGABYTE M.I.T. feature the user is no longer required to switch into different modes within BIOS setup in order to change system settings such as the CPU system bus, memory timings or to enabled Gigabyte's unique C.I.A.
Enters the PC Health setting page Confirmation and Execution button Toggles between Easy and Advance Mode Display panel of CPU frequency Shows the current functions status Log on to GIGABYTE website Display EasyTune 5 Help file Quit or Minimize EasyTune 5 software...
Once you have completed this step, subsequent access to Xpress Recovery can also function by pressing the F9 key during computer power on. Verifying DMI Pool Data Boot from CD: Xpress Recovery V1.0 (C) Copy Right 2003. GIGABYTE Technology CO. , Ltd. 1. Execute Backup Utility 2. Execute Restore Utility 3. Remove Backup Image 4.
Page 56
Press DEL to enter SETUP / Q-Flash, F9 For Xpress Recovery 08/16/2002-I845GE-6A69YG01C-00 Xpress Recovery V1.0 (C) Copy Right 2003. GIGABYTE Technology CO. , Ltd. If you have already entered Xpress Recovery by booting from the CD-ROM, you can enter Xpress Recovery in the future by pressing the F9 key.
Page 57
1. Execute Backup Utility: Press B to Backup your System or Esc to Exit The backup utility will automatically scan your system and back up data as a backup image in your hard drive. Not all systems support access to Xpress Recovery by pressing the F9 key during computer power on.
Updating BIOS with Q-Flash Utility on Dual BIOS Motherboards. Some of Gigabyte motherboards are equipped with dual BIOS. In the BIOS menu of the motherboards supporting Q-Flash and Dual BIOS, the Q-Flash utility and Dual BIOS utility are combined in the same screen.
Page 59
Entering the Q-Flash utility: Step1: To use Q-Flash utility, you must press Del in the boot screen to enter BIOS menu. CMOS Setup Utility-Copyright (C) 1984-2004 Award Software Standard CMOS Features Advanced BIOS Features Integrated Peripherals Power Management Setup PnP/PCI Configurations PC Health Status MB Intelligent Tweaker(M.I.T.) ESC: Quit...
Page 60
Copy Main ROM Data to Backup Don't Turn Off Power or Reset System Enter : Run After BIOS file is read, you'll see a confirmation dialog box asking you "Are you sure to update BIOS?" GA-8I915PC Duo Motherboard Dual BIOS Utility Main Bios Disable...
Page 61
3. Press Y button on your keyboard after you are sure to update BIOS. Then it will begin to update BIOS. The progress of updating BIOS will be displayed. Please do not take out the floppy disk when it begins flashing BIOS. 4.
Press Y on your keyboard to save and exit. Part Two: Updating BIOS with Q-Flash Utility on Single-BIOS Motherboards. This part guides users of single-BIOS motherboards how to update BIOS using the Q-Flash CMOS Setup Utility-Copyright (C) 1984-2004 Award Software Standard CMOS Features Advanced BIOS Features...
Page 63
Exploring the Q-Flash utility screen The Q-FlashBIOS utility screen consists of the following key components. Flash Type/Size...SST 49LF003A Task menu for Q-Flash utility Enter : Run Task menu for Q-Flash utility: Contains the names of three tasks. Blocking a task and pressing Enter key on your keyboard to enable execution of the task.
Page 64
Press Del to enter BIOS menu after system reboots and "Load BIOS Fail-Safe Defaults". See how to Load BIOS Fail-Safe Defaults, please kindly refer to Step 6 to 7 in Part One. Congratulation!! You have updated BIOS successfully!! GA-8I915PC Duo Motherboard Q-Flash Utility V1.30 Keep DMI Data...
Please search for BIOS unzip file, downloading from internet or any other methods (such as: 8I915PC Duo.D2). Complete update process following the instruction. Utility Fig 2. Installation Complete and Run @BIOS Click Sart/ Programs/ GIGABYTE/@BIOS Fig 4. Select the desired @BIOS server - 65 - Appendix...
Page 66
III. In method I, if the BIOS file you need cannot be found in @BIOSTM server, please go onto Gigabyte's web site for downloading and updating it according to method II. IV. Please note that any interruption during updating will cause system unbooted...
Introduction of audio connectors: You may connect CD-ROM/DVD-ROM, walkman or others audio input to Line In. The front channels or earphone can be connected to Line Out (Front Speaker Out). Connect microphone to Mic In. Connect the rear channels to Rear Speaker Out. Connect the Center/Subwoofer channels to Center/ Subwoofer Speaker Out.
Page 68
Click the icon to select the function. STEP 3: Click "Speaker Configuration" then click on the left selection bar and select "4CH Speaker" to complete 4 channel audio configuration. GA-8I915PC Duo Motherboard - 68 - Front Speaker Out Rear Speaker Out...
Page 69
6 Channel Audio Setup STEP 1 : Connect the front channels to "Front Speaker Out", the rear channels to "Rear Speaker Out", and the Center/Subwoofer channels to "Center/Subwoofer Speaker Out". STEP 2 : Following installation of the audio driver, you find a Sound Effect icon on the lower right hand taskbar.
Page 70
"6CH Speaker" to complete 6 channel audio configuration. Sound Effect Configuration: At the sound effect menu, users can adjust sound option settings as desired. GA-8I915PC Duo Motherboard - 70 - Front Speaker Out Rear Speaker Out Center/Subwoofer...
4-1-5 Jack-Sensing and UAJ Introduction Jack-Sensing provides audio connectors error-detection function. Install Microsoft DirectX8.1 or later version before to enable Jack-Sensing support for Windows 98 / 98SE / 2000 / ME. Jack-Sensing includes 2 parts: AUTO and MANUAL. Following is an example for 2 channels (Windows XP): Introduction of audio connectors You may connect CDROM, Walkman or others audio input devices to Line In jack, speakers, earphone or...
Page 72
(Line-in/ Line-out). That means users do not need to worry the audio device should be plug in Line-in or Line-out jack, the device will work perfectly after UAJ is activated. Enable UAJ function: You can click "UAJ Automatic" button to enable UAJ function. GA-8I915PC Duo Motherboard - 72 -...
Question 6: How do I disable onboard VGA card in order to add an external VGA card? Answer: Gigabyte motherboards will auto-detect the external VGA card after it is plugged in, so you don't need to change any setting manually to disable the onboard VGA.
Page 74
8 beeps Display memory read/write failure 9 beeps ROM checksum error 10 beeps CMOS shutdown register read/write error 11 beeps Cache memory bad GA-8I915PC Duo Motherboard AWARD BIOS Beep Codes 1 short: System boots successfully 2 short: CMOS setting error...