Intel System Board G4H875-B User Manual
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Intel System Board G4H875-B User Manual

Intel System Board G4H875-B User Manual

Intel g4h875-n/g4h875-c/g4h875-b system board user's manual
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G4H875-N
G4H875-C
G4H875-B
Rev. A+
System Board
User's Manual
935-G4H875-000
A77100333

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Summary of Contents for Intel System Board G4H875-B

  • Page 1 G4H875-N G4H875-C G4H875-B Rev. A+ System Board User’s Manual 935-G4H875-000 A77100333...
  • Page 2 Windows 98 SE, Windows 4.0 and Windows Corporation. Intel marks of Intel Corporation. Award is a registered trademark of Award Software, Inc. Other trademarks and registered trademarks of products appearing in this manual are the properties of their respective holders.

  • Page 3: Fcc And Doc Statement On Class B

    Battery: • Danger of explosion if battery incorrectly replaced. • Replace only with the same or equivalent type recommend by the manufacturer. • Dispose of used batteries according to the batter y manufacturer’s instructions. Joystick or MIDI port: • Do not use any joystick or MIDI device that requires more than 10A current at 5V DC.
  • Page 4 Notice An electronic file of this manual is included in the CD. To view the user’s manual, insert the CD into a CD-ROM drive. The autorun screen (Main Board Utility CD) will appear. Click “User’s Manual” on the main menu.

  • Page 5: Table Of Contents

    Table of Contents Chapter 1 - Introduction 1.1 Features and Specifications... 1.2 Hyper-Threading Technology Functionality Requirements... 1.3 Package Checklist... Chapter 2 - Hardware Installation System Board Layout ... System Memory... CPU... Jumper Settings... Rear Panel I/O Ports... I/O Connectors... Chapter 3 - BIOS Setup 3.1 Award BIOS Setup Utility...
  • Page 6 Introduction Appendix A - Enabling the Hyper-Threading A.1 Enabling the Hyper-Threading Technology... Appendix B - CPU Fan Protection B.1 CPU Fan Protection... Appendix C - CPU Temperature Protection C.1 CPU Temperature Protection... Appendix D - System Error Messages D.1 POST Beep... D.2 Error Messages...

  • Page 7: Chapter 1 - Introduction

    The system board is equipped with Socket 478 for installing one of the following supported processors. ® ® • Intel Pentium 3.2GHz+ Intel Hyper-Threading Technology FSB: 533MHz and 800MHz ® ® • Intel Celeron 400MHz system data bus System Memory •...
  • Page 8 Introduction Density Density Width Single/Double 184-pin DDR Performance Acceleration Technology (PAT) PAT mode is supported only when the system uses DDR400 with 800MHz FSB CPU. PAT performs data transactions directly from the CPU to the system memory, bypassing the normal path of operation.
  • Page 9 Thin BGA 15 mm Compatibility • PCI 2.2 and AC ’97 compliant • Intel AGP version 3.0 PCI Bus Master IDE Controller • Supports ATA/33, ATA/66 and ATA/100 hard drives • PIO Mode 4 Enhanced IDE (data transfer rate up to 14MB/sec.) •...
  • Page 10 Introduction USB Ports The system board supports USB 2.0 and USB 1.1 ports. USB 1.1 suppor ts 12Mb/second bandwidth while USB 2.0 suppor ts 480Mb/second bandwidth providing a marked improvement in device transfer speeds between your computer and a wide range of simultaneously accessible external Plug and Play peripherals.
  • Page 11 I/O Connectors • 1 connector for 2 additional external USB 2.0/1.1 por ts (G4H875-B only) • 2 connectors for 2 external serial ports (G4H875-N only) • 1 front audio connector for external line-out and mic-in jacks • 1 connector for an external game/MIDI port •...
  • Page 12 Introduction 1.1.3 Intelligence CPU Fan Protection The CPU Fan Protection function has the capability of monitoring the CPU fan when the system boots. Once it has detected that the CPU fan did not rotate, 5 warning beeps will sound then the system will automatically power-off.
  • Page 13 Wake-On-LAN This feature allows the network to remotely wake up a Soft Power Down (Soft-Off) PC. It is supported via the onboard LAN port, via a PCI LAN card that uses the PCI PME (Power Management Event) signal or via a LAN card that uses the Wake-On-LAN connector. However, if your system is in the Suspend mode, you can power-on the system only through an IRQ or DMA interrupt.
  • Page 14 Introduction ACPI The system board is designed to meet the ACPI (Advanced Con- figuration and Power Interface) specification. ACPI has energy saving features that enables PCs to implement Power Management and Plug-and-Play with operating systems that support OS Direct Power Management.

  • Page 15: Hyper-Threading Technology Functionality Requirements

    • OS - an operating system that includes optimizations for HT Technology Please refer to Appendix A for information about enabling the functionality of the Hyper-Threading Technology. For more information on Hyper-Threading Technology, go to: www.intel.com/info/ hyperthreading. 1.3 Package Checklist The system board package contains the following items: One system board One user’s manual...

  • Page 16: Chapter 2 - Hardware Installation

    Chapter 2 - Hardware Installation 2.1 System Board Layout KB/Mouse PS/2 KB/Mouse power select (JP2) COM 1 USB 1-4 power select (JP3) COM 2 LAN 2; USB 3-4 LAN 1; USB 1-2 Intel Gigabit 82547EI Line-out Line-in Mic-in Intel 82551QM Chassis open (J6) Game...

  • Page 17: Hardware Installation

    COM 1 USB 1-4 power select (JP3) COM 2 USB 3-4 North bridge LAN; USB 1-2 Line-out Line-in Mic-in Intel 82551QM PCI Slot 1 Chassis PCI Standby LED open (J6) PCI Slot 2 PCI Slot 3 Game IrDA PCI-X Slot 1...

  • Page 18: System Board

    Hardware Installation KB/Mouse PS/2 KB/Mouse power select (JP2) COM 1 USB 1-2 power select (JP3) COM 2 LAN 1; USB 1-2 Line-out Line-in Mic-in Intel 82551QM Chassis open (J6) Game CD-in AUX-in Audio Codec Front audio S/PDIF LED 1 Note: The illustrations on the following pages are based on the G4H875-N system board.

  • Page 19: System Memory

    Warning: Electrostatic discharge (ESD) can damage your system board, processor, disk drives, add-in boards, and other components. Perform the upgrade instruction procedures described at an ESD workstation only. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis.
  • Page 20 Hardware Installation The system board supports the following memory interface. Single Channel (SC) Data will be accessed in chunks of 64 bits (8B) from the memory channels. Virtual Single Channel (VSC) If both channels are populated with different memory configurations, the MCH defaults to Virtual Single Channel.
  • Page 21 BIOS Setting Configure the system memory in the Advanced Chipset Features submenu of the BIOS. The table below lists the various optimal operating modes that should be configured for the memory channel operation. Config No memory Single channel A Single channel A Single channel A Single channel B Single channel B...
  • Page 22 Hardware Installation Config Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing P - denotes populated E - denotes empty * - denotes DIMMs are identical ** - denotes DIMMs are not identical SS - denotes Single Sided DIMM DS - denotes Double Sided DIMM 1, 2, 3 or 4 - denotes the DDR DIMM slot...
  • Page 23 2.2.1 Installing the DIM Module A DIM module simply snaps into a DIMM socket on the system board. Pin 1 of the DIM module must correspond with Pin 1 of the socket. Pin 1 1. Pull the “tabs” which are at the ends of the socket to the side. 2.

  • Page 24: Cpu

    Hardware Installation 2.3 CPU 2.3.1 Overview The system board is equipped with a surface mount 478-pin CPU socket. This socket is exclusively designed for installing an Intel processor. 2.3.2 Installing the CPU 1. Locate Socket 478 on the system board.
  • Page 25 3. Position the CPU above the socket then align the gold mark on the corner of the CPU (designated as pin 1) with pin 1 of the socket. Important: Handle the CPU by its edges and avoid touching the pins. Gold mark 4.
  • Page 26 Without sufficient air circulation across the CPU and heat sink, the CPU will overheat damaging both the CPU and system board. Note: • Only use Intel • An Intel mechanism, heat sink, fan and installation guide. If the installation procedure in the installation guide differs from the one in this section, please follow the installation guide in the package.
  • Page 27 1. The system board comes with the retention module base already installed. Retention module base 2. Position the fan / heat sink and retention mechanism assembly on the CPU, then align and snap the retention legs’ hooks to the retention holes at the 4 corners of the retention module base. Note: You will not be able to snap the hooks into the holes if the fan / heat sink and retention mechanism assembly did not...
  • Page 28 Hardware Installation 3. The retention levers at this time remains unlocked as shown in the illustration below. Retention lever 4. Move the retention levers to their opposite directions then push them down. This will secure the fan / heat sink and retention mechanism assembly to the retention module base.

  • Page 29: Jumper Settings

    2.4 Jumper Settings 2.4.1 Clearing CMOS Data If you encounter the following, a) CMOS data becomes corrupted. b) You forgot the supervisor or user password. c) You are unable to boot-up the computer system because the processor’s ratio/clock was incorrectly set in the BIOS. you can reconfigure the system with the default values stored in the ROM BIOS.
  • Page 30 Hardware Installation 4. After powering-on the system, press <Del> to enter the main menu of the BIOS. 5. Select the Frequency/Voltage Control submenu and press <Enter>. 6. Set the “CPU Clock Ratio” or “CPU Clock” field to its default setting or an appropriate bus clock or frequency ratio. Refer to the Frequency/Voltage Control section in chapter 3 for more information.
  • Page 31 2.4.2 PS/2 Keyboard/Mouse Wake Up This jumper is used to select the power of the PS/2 Keyboard/ Mouse port. Selecting 5VSB will allow you to use the Wake-On- PS/2 Keyboard/Mouse function. BIOS Setting: “Power On Function” (“Super IO Device” section) in the Inte- grated Peripherals submenu of the BIOS must be set accordingly.
  • Page 32 Hardware Installation 2.4.3 USB Keyboard Wake Up These jumpers are used to select the power of the USB ports. Selecting 5VSB will allow you to use the Wake-On-USB Key- board function. On the G4H875-N and G4H875-C system boards, JP3 is for setting USB 1-4 that are at the rear I/O panel.
  • Page 33 2.4.4 Power-on Select This jumper is used to select the method of powering on the system. If you want the system to power-on once AC power comes in, set JP6 pins 2 and 3 to On. If you want to use the power button, set pins 1 and 2 to On.
  • Page 34 Hardware Installation 2.4.5 BIOS Write Protect “White” represents the switch’s position. 1 On: Write only 2 On: 1-2 Off: to BIOS utility BIOS Write BIOS Not Write Protected Protected SW1 is used to configure the BIOS Write Protect function. When this function is enabled, the system will be protected from unneces- sary updating or flashing of the BIOS.

  • Page 35: Rear Panel I/O Ports

    2.5 Rear Panel I/O Ports PS/2 Mouse Parallel PS/2 COM 1 PS/2 Parallel Mouse PS/2 COM 1 PS/2 Parallel Mouse PS/2 COM 1 Hardware Installation LAN 2 LAN 1 USB 3-4 COM 2 USB 1-2 G4H875-N USB 4 COM 2 USB 3 USB 1-2 G4H875-C...
  • Page 36 Hardware Installation 2.5.1 PS/2 Mouse and PS/2 Keyboard Ports PS/2 Mouse PS/2 Keyboard The system board is equipped with an onboard PS/2 mouse (Green) and PS/2 keyboard (Purple) ports - both at location CN1 of the system board. The PS/2 mouse port uses IRQ12. If a mouse is not connected to this port, the system will reserve IRQ12 for other expansion cards.

  • Page 37: Serial Ports

    Hardware Installation 2.5.2 Serial Ports " COM 1 COM 2 " COM 3 COM 4 G4H875-N only G4H875-N is equipped with 2 onboard serial ports (COM 1: CN3 and COM 2: CN4) - both in Teal/Turquoise color. It is also equipped with two 9-pin connectors (COM 3: J14 and COM 4: J16) for connecting external serial ports.

  • Page 38: Parallel Port

    Hardware Installation 2.5.3 Parallel Port The system board has a standard parallel port (Burgundy) at location CN7 for interfacing your PC to a parallel printer. It sup- ports SPP, ECP and EPP. Setting (Standard Parallel Port) (Extended Capabilities Port) (Enhanced Parallel Port) BIOS Setting Select the parallel por t’s mode in the Integrated Peripherals submenu (“Super IO Device”...

  • Page 39: Universal Serial Bus Ports

    2.5.4 Universal Serial Bus Ports USB 4 USB 3 G4H875-N/C only USB 2 USB 1 G4H875-N/C/B The system board supports USB 2.0/1.1 ports. USB allows data exchange between your computer and a wide range of simulta- neously accessible external Plug and Play peripherals. G4H875-N and G4H875-C are each equipped with four onboard USB 2.0/1.1 ports (Black) are at locations CN5 (USB 3-4) and CN6 (USB 1-2) of the system board.
  • Page 40 You may need to install the proper drivers in your operating system to use the USB device. Refer to your operating system’s manual or documentation for more information. If you are using a USB 2.0 device, install the “Intel USB 2.0 Drivers”. Refer to chapter 4 for more information. Wake-On-USB Keyboard...
  • Page 41 G4H875-N is equipped with 2 onboard RJ45 LAN ports. LAN 1 which is controlled by the Intel 82551QM chip is at location CN6 and LAN 2 which is controlled by the Intel Gigabit 82547EI chip is at location CN5. G4H875-C and G4H875-B are each equipped with the LAN 1 port only.
  • Page 42 Hardware Installation 2.5.6 Audio Mic-in Line-in Line-out Mic-in, Line-in and Line-out The mic-in, line-in and line-out jacks are at location CN2 of the system board. A jack is a one-hole connecting interface for insert- ing a plug. • Mic-in Jack (Pink) This jack is used to connect an external microphone.
  • Page 43 Front Audio The front audio connector (J3) allows you to connect to the line-out and mic-in jacks that are at the front panel of your sys- tem. Using this connector will disable the rear audio’s line-out and mic-in functions. Remove the jumper caps from pins 5-6 and pins 9-10 of J3 prior to connecting the front audio cable connector.

  • Page 44: I/O Connectors

    Hardware Installation 2.6 I/O Connectors 2.6.1 Game/MIDI Port The system board is equipped with a 15-pin connector at loca- tion J2 for connecting an external game/MIDI port. The game/ MIDI port may be mounted on a card-edge bracket. Install the card-edge bracket to the system chassis then connect the game/ MIDI port cable to connector J2.

  • Page 45: Internal Audio Connectors

    2.6.2 Internal Audio Connectors Ground Ground Ground Left audio Right audio Left audio channel channel channel CD-in The CD-in (J1) and AUX-in (J4) connectors are used to receive audio from a CD-ROM drive, TV tuner or MPEG card. Hardware Installation Ground Right audio channel...
  • Page 46 Hardware Installation 2.6.3 S/PDIF Connector SPDIF out SPDIF in " The S/PDIF connector (J5) is used to connect external S/PDIF ports. The S/PDIF ports may be mounted on a card-edge bracket. Install the card-edge bracket to the system chassis then connect the audio cable connector to J5.

  • Page 47: Floppy Disk Drive Connector

    Hardware Installation 2.6.4 Floppy Disk Drive Connector The system board is equipped with a shrouded floppy disk drive connector for connecting a standard floppy disk drive. To prevent improper floppy cable installation, the shrouded floppy disk header has a keying mechanism. The 34-pin connector on the floppy cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header.

  • Page 48: Serial Ata Connectors

    Hardware Installation 2.6.5 Serial ATA Connectors Connect one end of the SATA cable to J22 (SATA 2) or J23 (SATA 1) and the other end to your serial ATA device. BIOS Setting Configure the Serial ATA drives in the Integrated Peripherals submenu (“OnChip IDE Device”...

  • Page 49: Ide Disk Drive Connector

    2.6.6 IDE Disk Drive Connector The system board is equipped with two shrouded PCI IDE headers that will interface four Enhanced IDE (Integrated Drive Electronics) disk drives. To prevent improper IDE cable installation, each shrouded PCI IDE header has a keying mechanism. The 40-pin connector on the IDE cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header.
  • Page 50 Hardware Installation Note: Refer to your disk drive user’s manual for information about selecting proper drive switch settings. Adding a Second IDE Disk Drive When using two IDE drives, one must be set as the master and the other as the slave. Follow the instructions provided by the drive manufacturer for setting the jumpers and/or switches on the drives.
  • Page 51 2.6.7 IrDA Connector IRRX N. C. Ground IRTX Connect your IrDA cable to connector J7 on the system board. Note: The sequence of the pin functions on some IrDA cable may be reversed from the pin function defined on the system board. Make sure to connect the cable to the IrDA connector according to their pin functions.

  • Page 52: Cooling Fan Connectors

    NB fan Connect the CPU fan’s cable connector to the CPU fan connec- tor (J13) on the system board. Connect the Intel 875P fan’s cable connector to the NB fan connector (J27) on the system board. The chassis fan (J19) and second fan (J25) connectors are used to connect additional cooling fans.
  • Page 53 2.6.9 Wake-On-LAN Connector Your LAN card package should include a cable. Connect one end of the cable to the wakeup header on the card and the other end to location J10 on the system board. The network will detect Magic Packet and assert a wake up signal to power-up the system.
  • Page 54 Hardware Installation 2.6.10 Chassis Open Connector Chassis signal Ground The system board supports the chassis intrusion detection func- tion. To use this function, connect the chassis intrusion sensor cable from the chassis to J6. Whenever a chassis component has been removed, the sensor sends signal to J6 alerting you of a chassis intrusion event.
  • Page 55 2.6.11 LEDs DIMM Standby Power LED This LED will turn red when the system’s power is on or when it is in the Suspend state (Power On Suspend or Suspend to RAM). It will not light when the system is in the Soft-Off state. PCI Standby Power LED This LED will turn red when the system is in the power-on, Soft- Off or Suspend (Power On Suspend or Suspend to RAM) state.
  • Page 56 Hardware Installation Early program chipset reg- ister before POST. Testing memory presence. Detecting memory size. No memory present. Programming DRAM tim- ing register. Calculating DRAM size variable including row, col- umn and bank. Initializing JEDEC of cur- rent DRAM row. Checking CMOS checksum and battery.

  • Page 57: Power Connectors

    2.6.12 Power Connectors We recommend that you use a power supply that complies with the ATX12V Power Supply Design Guide Version 1.1. An ATX12V power supply has a standard 20-pin ATX main power connector and a 4-pin +12V power connector that must be inserted onto CN9 and CN8 connectors respectively.

  • Page 58: Front Panel Connectors

    Hardware Installation 2.6.13 Front Panel Connectors HD-LED: Primary/Secondary IDE LED This LED will light when the hard drive is being accessed. RESET: Reset Switch This switch allows you to reboot without having to power off the system thus prolonging the life of the power supply or system. SPEAKER: Speaker Connector This connects to the speaker installed in the system chassis.
  • Page 59 PWR-LED: Power/Standby LED When the system’s power is on, this LED will light. When the system is in the S1 (POS - Power On Suspend) state, it will blink every second. When the system is in the S3 (STR - Suspend To RAM) state, it will blink every second.

  • Page 60: Chapter 3 - Bios Setup

    BIOS Setup Chapter 3 - BIOS Setup 3.1 Award BIOS Setup Utility The Basic Input/Output System (BIOS) is a program that takes care of the basic level of communication between the processor and peripherals. In addition, the BIOS also contains codes for various advanced features found in this system board.

  • Page 61: Bios Setup

    3.1.1 Standard CMOS Features Use the arrow keys to highlight “Standard CMOS Features” and press <Enter>. A screen similar to the one below will appear. The settings on the screen are for reference only. Your version may not be identical to this one.
  • Page 62 BIOS Setup 3.1.1.3 IDE Channel 0 Master, IDE Channel 0 Slave, IDE Channel 1 Master and IDE Channel 1 Slave Move the cursor to the “IDE Channel 0 Master”, “IDE Channel 0 Slave”, “IDE Channel 1 Master” or “IDE Channel 1 Slave” field, then press <Enter>.
  • Page 63 Capacity Displays the approximate capacity of the disk drive. Usually the size is slightly greater than the size of a formatted disk given by a disk checking program. Cylinder This field displays the number of cylinders. Head This field displays the number of read/write heads. Precomp This field displays the number of cylinders at which to change the write timing.
  • Page 64 BIOS Setup 3.1.1.5 Video This field selects the type of video adapter used for the primary system monitor. Although secondary monitors are supported, you do not have to select the type. The default setting is EGA/VGA. EGA/VGA Enhanced Graphics Adapter/Video Graphics Array. For CGA 40 CGA 80 Mono...
  • Page 65 3.1.1.8 Extended Memory Displays the amount of extended memory detected during boot-up. 3.1.1.9 Total Memory Displays the total memory available in the system. BIOS Setup...

  • Page 66: Advanced Bios Features

    BIOS Setup 3.1.2 Advanced BIOS Features The Advanced BIOS Features allows you to configure your system for basic operation. Some entries are defaults required by the system board, while others, if enabled, will improve the performance of your system or let you set some features according to your preference. The screen above list all the fields available in the Advanced BIOS Features submenu, for ease of reference in this manual.
  • Page 67 This field is used to enable or disable the CPU’s L3 cache. 3.1.2.5 Hyper-Threading Technology (for Intel with Hyper-Threading Technology only) This field is used to enable the functionality of the Intel Processor with Hyper-Threading Technology and will appear only when using this processor.
  • Page 68 BIOS Setup 3.1.2.10 Gate A20 Option This entry allows you to select how gate A20 is handled. Gate A20 is a device used to address memory above 1 Mbyte. Initially, gate A20 was handled via the keyboard controller. Today, while keyboards still provide this support, it is more common, and much faster, for the system chipset to provide support for gate A20.
  • Page 69 3.1.2.14 Security Option This field determines when the system will prompt for the password - everytime the system boots or only when you enter the BIOS setup. Set the password in the Set Supervisor/User Password submenu. System The system will not boot and access to Setup will be denied unless the correct password is entered at the prompt.

  • Page 70: Advanced Chipset Features

    BIOS Setup 3.1.3 Advanced Chipset Features The settings on the screen are for reference only. Your version may not be identical to this one. This section gives you functions to configure the system based on the specific features of the chipset. The chipset manages bus speeds and access to system memory resources.
  • Page 71 Manual If you want your system to run at a performance better than the one “by SPD”, select “Manual” then select the best option in the “CAS Latency Time” to “DRAM RAS# Precharge” fields. 3.1.3.2 CAS Latency Time This field is used to select the local memory clock periods. 3.1.3.3 Active to Precharge Delay The options are 5, 6, 7 and 8.
  • Page 72 BIOS Setup 3.1.3.8 System BIOS Cacheable When this field is enabled, accesses to the system BIOS ROM addressed at F0000H-FFFFFH are cached, provided that the cache controller is enabled. The larger the range of the Cache RAM, the higher the efficiency of the system. 3.1.3.9 Video BIOS Cacheable As with caching the system BIOS, enabling the Video BIOS cache will allow access to video BIOS addresssed at C0000H to C7FFFH to...
  • Page 73 3.1.3.13 DRAM Data Integrity Mode The ECC (Error Checking and Correction) function is supported only in x72 (72-bit) PC SDRAM DIMMs. If you are using x64 (64-bit) PC SDRAM DIMMs, set this field to Non-ECC. Non-ECC Uses x64 PC SDRAM DIMM. This option allows the system to recover from memory failure.

  • Page 74: Integrated Peripherals

    BIOS Setup 3.1.4 Integrated Peripherals The settings on the screen are for reference only. Your version may not be identical to this one. 3.1.4.1 OnChip IDE Device Move the cursor to this field and press <Enter>. The following screen will appear. The settings on the screen are for reference only.
  • Page 75 IDE HDD Block Mode Enabled The IDE HDD uses the block mode. The system BIOS will check the hard disk drive for the maximum block size the system can transfer. The block size will depend on the type of hard disk drive. Disabled The IDE HDD uses the standard mode.
  • Page 76 BIOS Setup IDE Primary Master/Slave UDMA and IDE Secondary Master/ Slave UDMA These fields allow you to set the Ultra DMA in use. When Auto is selected, the BIOS will select the best available option after checking your hard drive or CD-ROM. Auto Disabled On-Chip Serial ATA...
  • Page 77 3.1.4.2 Onboard Device Move the cursor to this field and press <Enter>. The following screen will appear. The settings on the screen are for reference only. Your version may not be identical to this one. USB Controller Enabled Enables the onboard USB. Disabled Disables the onboard USB.
  • Page 78 BIOS Setup CSA LAN (Giga-LAN) - G4H875-N only This field is used to enable or disable the onboard CSA Gigabit LAN. 3.1.4.3 Super IO Device Move the cursor to this field and press <Enter>. The following screen will appear. The settings on the screen are for reference only. Your version may not be identical to this one.
  • Page 79 Keyboard 98 When this option is selected, press the “wake up” key of the Windows 98 compatible keyboard to power-on the system. KB Power On Password Move the cursor to this field and press <Enter>. Enter your pass- word. You can enter up to 5 characters. Type in exactly the same password to confirm, then press <Enter>.
  • Page 80 BIOS Setup RxD, TxD Active The options are Hi, Lo; Lo, Hi; Lo, Lo; and Hi, Hi. IR Transmission Delay If this field is Enabled, transmission of data will be slower. This is recommended when you encounter transmission problem with your device.
  • Page 81 If you selected EPP, the “EPP Mode Select” field is selectable. If you selected ECP, the “ECP Mode Use DMA” field is selectable. If you selected ECP+EPP, both “EPP Mode Select” and “ECP Mode Use DMA” are selectable. EPP Mode Select This field is used to select the EPP mode of the parallel port.
  • Page 82 BIOS Setup Onboard Serial Port 3 (G4H875-N only) This field is used to select the serial port 3’s I/O address. Onboard Serial Port 3 IRQ (G4H875-N only) This field is used to select the serial port 3’s IRQ address. This field is not configurable if the “Onboard Serial Port 3”...

  • Page 83: Power Management Setup

    3.1.5 Power Management Setup The Power Management Setup allows you to configure your system to most effectively save energy. The screen above list all the fields available in the Power Management Setup submenu, for ease of reference in this manual. In the actual CMOS setup, you have to use the scroll bar to view the fields.
  • Page 84 BIOS Setup 3.1.5.3 Run VGABIOS if S3 Resume When this field is set to Auto, the system will initialize the VGA BIOS when it wakes up from the S3 state. This can be configured only if the “ACPI Suspend Type” field is set to “S3(STR)”. 3.1.5.4 Power Management This field allows you to select the type (or degree) of power saving by changing the length of idle time that elapses before the Suspend...
  • Page 85 3.1.5.8 MODEM Use IRQ This field is used to set an IRQ channel for the modem installed in your system. 3.1.5.9 Suspend Mode This is selectable only when the Power Management field is set to User Define. When the system enters the Suspend mode according to the power saving time selected, the CPU and onboard peripherals will be shut off.
  • Page 86 BIOS Setup 3.1.5.12 Wake-Up by PCI Card Enabled Disabled The system will not wake up despite access to the PCI 3.1.5.13 Power On by Ring Set this field to Enabled to use the modem ring-on function. This will allow your system to power-on to respond to calls coming from an external modem.
  • Page 87 3.1.5.17 Resume By Alarm Enabled When Enabled, you can set the date and time you would like the Soft Power Down (Soft-Off) PC to power-on in the “Date (of Month) Alarm” and “Time (hh:mm:ss) Alarm” fields. However, if the system is being accessed by incoming calls or the network (Resume On Ring/LAN) prior to the date and time set in these fields, the system will give priority to the incoming calls...

  • Page 88: Pnp/Pci Configurations

    BIOS Setup 3.1.6 PnP/PCI Configurations This section describes configuring the PCI bus system. It covers some very technical items and it is strongly recommended that only experienced users should make any changes to the default settings. The settings on the screen are for reference only. Your version may not be identical to this one.
  • Page 89 3.1.6.3 IRQ Resources Move the cursor to this field and press <Enter>. The “IRQ-3” to “IRQ-15” fields will appear. Set each system interrupt to either PCI Device or Reserved. The settings on the screen are for reference only. Your version may not be identical to this one.

  • Page 90: Pc Health Status

    BIOS Setup 3.1.7 PC Health Status The settings on the screen are for reference only. Your version may not be identical to this one. 3.1.7.1 Shutdown Temperature You can prevent the system from overheating by selecting a tem- perature in this field. If the system detected that its temperature exceeded the one set in this field, it will automatically shutdown.
  • Page 91 3.1.7.4 VCC3(V), +12(V), -12(V), VCC(V), VBAT(V) and 5VSB(V) These fields show the output voltage of the power supply. Note: The onboard hardware monitor function is capable of detecting “system health” conditions but if you want a warning message to pop-up or a warning alarm to sound when an abnormal condition occurs, you must install the Hardware Doctor utility.
  • Page 92 BIOS Setup 3.1.8 Frequency/Voltage Control The settings on the screen are for reference only. Your version may not be identical to this one. 3.1.8.1 CPU Clock Ratio This field is used to select the CPU’s frequency ratio. Important: The frequency ratio of some processors may have been locked by the manufacturer.
  • Page 93 3.1.8.5 CPU Clock This field provides several options for selecting the external system bus clock of the processor. The available options allow you to adjust the processor’s bus clock by 1MHz increment. Important: Selecting an external bus clock other than the default setting may result to the processor’s or system’s instability and are not guaranteed to provide better system performance.
  • Page 94 BIOS Setup 3.1.9 Load Fail-Safe Defaults The “Load Fail-Safe Defaults” option loads the troubleshooting default values permanently stored in the ROM chips. These settings are not optimal and turn off all high performance features. You should use these values only if you have hardware problems. Highlight this option in the main menu and press <Enter>.

  • Page 95: Load Optimized Defaults

    BIOS Setup 3.1.10 Load Optimized Defaults The “Load Optimized Defaults” option loads optimized settings from the BIOS ROM. Use the default values as standard values for your system. Highlight this option in the main menu and press <Enter>. Type <Y> and press <Enter> to load the Setup default values.

  • Page 96: Set Supervisor Password

    BIOS Setup 3.1.11 Set Supervisor Password If you want to protect your system and setup from unauthorized entry, set a supervisor’s password with the “System” option selected in the Advanced BIOS Features. If you want to protect access to setup only, but not your system, set a supervisor’s password with the “Setup”...

  • Page 97: Set User Password

    BIOS Setup 3.1.12 Set User Password If you want another user to have access only to your system but not to setup, set a user’s password with the “System” option se- lected in the Advanced BIOS Features. If you want a user to enter a password when trying to access setup, set a user’s password with the “Setup”...
  • Page 98 BIOS Setup 3.1.13 Save & Exit Setup When all the changes have been made, highlight “Save & Exit Setup” and press <Enter>. Type “Y” and press <Enter>. The modifications you have made will be written into the CMOS memory, and the system will reboot. You will once again see the initial diagnostics on the screen.

  • Page 99: Exit Without Saving

    3.1.14 Exit Without Saving When you do not want to save the changes you have made, highlight “Exit Without Saving” and press <Enter>. Type “Y” and press <Enter>. The system will reboot and you will once again see the initial diagnostics on the screen. If you wish to make any changes to the setup, press <Ctrl>...

  • Page 100: Updating The Bios

    BIOS Setup 3.2 Updating the BIOS To update the BIOS, you will need the new BIOS file and a flash utility, AWDFLASH.EXE. Please contact technical support or your sales representative for the files. Note: AWDFLASH.EXE works only in DOS mode. 1.
  • Page 101 6. The following will appear. Do You Want to Save BIOS (Y/N) This question refers to the current existing BIOS in your system. We recommend that you save the current BIOS and its flash utility; just in case you need to reinstall the BIOS. To save the current BIOS, press <Y>...

  • Page 102: Chapter 4 - Supported Softwares

    Supported Software Chapter 4 - Supported Software 4.1 Desktop Management Interface (DMI) The system board comes with a DMI built into the BIOS. DMI, along with the appropriately networked software, is designed to make inventory, maintenance and troubleshooting of computer sys- tems easier.

  • Page 103: Supported Software

    4.1.2 Using the DMI Utility Award DMI Configuration Utility Copyright Award Software Inc, 1996 [Edit DMI] [Add DMI] [Load DMI File] [Save DMI File]      BIOS      System Enclosure/Chassis Type : BIOS Information Processor Handle : 0000 Memory Controller...
  • Page 104 Supported Software Add DMI 1. Use the 2. Highlight the item on the left screen that you would like to add by using the 3. The cursor will move to the screen you select allowing you to enter information about the added item. 4.

  • Page 105: Drivers, Utilities And Software Applications

    Supported Software 4.2 Drivers, Utilities and Software Applications The CD that came with the system board contains drivers, utilities and software applications required to enhance the performance of the system board. Insert the CD into a CD-ROM drive. The autorun screen (Main Board Utility CD) will appear.
  • Page 106 To install the utility, please follow the steps below. 1. Click “Intel 875 INF Update Utility” on the main menu. The following screen will appear. 2. Follow the prompts on the screen to complete installation.
  • Page 107 After installing the software, run the application soft- ware by double-clicking the icon on the lower right of the taskbar. The “Intel(R) PROSet II” screen will appear. For more information about using the utility, click “View User Guide” on the screen above.
  • Page 108 Windows 98 SE, Windows ME and Windows 2000. To install the driver, please follow the steps below. 1. Click “Intel USB 2.0 Drivers” on the main menu. If you are using Windows 98 SE or Windows ME, the following screen...
  • Page 109 Windows 2000 does not support auto-installation of the USB 2.0 driver. When you click “Intel USB 2.0 Drivers”, the “readme” screen will appear. 2. Follow the installation instructions shown on the screen. 3. Reboot the system for the driver to take effect.
  • Page 110 Supported Software 4.2.4 Audio Drivers The audio drivers are supported in the following operating sys- tems: Windows 98SE, Windows ME, Windows NT 4.0, Windows 2000 and Windows XP. To install the driver, please follow the steps below. 1. Click “Audio Drivers”. The following screen will appear. 2.
  • Page 111 4.2.5 Microsoft DirectX 9 To install, please follow the steps below. 1. Click “Microsoft DirectX 9” on the main menu. The following screen will appear. 2. Click “I accept the agreement” then click “Next”. 3. Follow the prompts on the screen to complete installation. 4.
  • Page 112 Supported Software 4.2.6 Hardware Doctor Hardware Doctor is capable of monitoring the system’s hardware conditions such as the temperature of the CPU and system, volt- age, and speed of the cooling fans. It also allows you to manually set a range to the items being monitored. If the values are over or under the set range, a warning message will pop-up.

  • Page 113: Installation Notes

    4.3 Installation Notes 1. "Autorun" ONLY supports the Windows 98 SE, Windows ME, Windows 2000, Windows NT operating systems. If after inserting the CD, "Autorun" did not automatically start (which is, the Main Board Utility CD screen did not appear), please go directly to the root directory of the CD and double-click "Setup".

  • Page 114: Enabling The Hyper-Threading Technology

    1. The system requires a minimum of 300 Watt ATX 12V power supply. 2. Aside from installing a CPU fan on the Intel Processor with Hyper-Threading Technology, make sure to install cooling fans. The system requires adequate airflow throughout the chassis to prevent overheating the processor.
  • Page 115 Enabling Hyper-Threading Technology c. Click the General tab. The processor shown under Computer should resemble the one shown below. d. Now click the Hardware tab then click Device Manager. The items shown under Computer and Processors should resemble the ones shown below.
  • Page 116 Enabling Hyper-Threading Technology e. Lastly, press the <Ctrl> <Alt> and <Del> keys simultaneously. The Windows Task Manager dialog box will appear. Click the Performance tab. The diagram under CPU Usage History should resemble the one shown below.

  • Page 117: Appendix B - Cpu Fan Protection

    Appendix B - CPU Fan Protection The CPU must be kept cool by using a CPU fan with heat sink. Without sufficient air circulation across the CPU and heat sink, the CPU will overheat damaging both the CPU and system board. The system board supports the CPU Fan Protection function.

  • Page 118: Appendix C - Cpu Temperature Protection

    CPU Temperature Protection Appendix C - CPU Temperature Protection The CPU Temperature Protection function has the capability of monitoring the CPU’s temperature during system boot-up. To use the CPU Temperature Protection function, please follow the steps below. 1. Select the “PC Health Status” submenu in the BIOS. 2.

  • Page 119: Appendix D - System Error Messages

    Appendix D - System Error Message When the BIOS encounters an error that requires the user to correct something, either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message, PRESS F1 TO CONTINUE, CTRL-ALT-ESC or DEL TO ENTER SETUP, will be shown in the information box at the bottom.
  • Page 120 System Error Message setting than indicated in Setup. Determine which setting is correct, either turn off the system and change the jumper or enter Setup and change the VIDEO selection. FLOPPY DISK(S) fail (80) Unable to reset floppy subsystem. FLOPPY DISK(S) fail (40) Floppy type mismatch.

  • Page 121: Appendix E - Troubleshooting

    E.1 Troubleshooting Checklist This chapter of the manual is designed to help you with problems that you may encounter with your personal computer. To efficiently troubleshoot your system, treat each problem individually. This is to ensure an accurate diagnosis of the problem in case a problem has multiple causes.

  • Page 122: Power Supply

    Troubleshooting The picture seems to be constantly moving. 1. The monitor has lost its vertical sync. Adjust the monitor’s vertical sync. 2. Move away any objects, such as another monitor or fan, that may be creating a magnetic field around the display. 3.

  • Page 123: Hard Drive

    Hard Drive Hard disk failure. 1. Make sure the correct drive type for the hard disk drive has been entered in the BIOS. 2. If the system is configured with two hard drives, make sure the bootable (first) hard drive is configured as Master and the second hard drive is configured as Slave.

  • Page 124: Serial Port

    Troubleshooting Serial Port The serial device (modem, printer) doesn’t output anything or is outputting garbled characters. 1. Make sure that the serial device’s power is turned on and that the device is on-line. 2. Verify that the device is plugged into the correct serial port on the rear of the computer.

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