DFI G4H875-P User manual

935-G4H875-800
A85100505
G4H875-P
System Board
User’s Manual

Copyright
This publication contains information that is protected by copyright.
No part of it may be reproduced in any form or by any means or
used to make any transformation/adaptation without the prior
written permission from the copyright holders.
This publication is provided for informational purposes only. The
manufacturer makes no representations or warranties with respect to
the contents or use of this manual and specifically disclaims any
express or implied warranties of merchantability or fitness for any
particular purpose.The user will assume the entire risk of the use or
the results of the use of this document. Further, the manufacturer
reserves the right to revise this publication and make changes to its
contents at any time, without obligation to notify any person or
entity of such revisions or changes.
© 2005. All Rights Reserved.
Trademarks
Product names or trademarks appearing in this manual are for
identification purpose only and are the properties of the respective
owners.
Caution
To avoid damage to the system:
• Use the correct AC input voltage range.....
To reduce the risk of electric shock:
• Unplug the power cord before removing the system chassis
cover for installation or servicing. After installation or servicing,
cover the system chassis before plugging the power cord.
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 battery
manufacturer’s instructions.

Joystick or MIDI port:
• Do not use any joystick or MIDI device that requires more than
10A current at 5V DC. There is a risk of fire for devices that
exceed this limit.
FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
• Consult the dealer or an experienced radio TV technician for
help.
Notice:
1. The changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
2. Shielded interface cables must be used in order to comply with
the emission limits.

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.

Table of Contents
Chapter 1 - Introduction
Specifications...................................................................................................................................
Special Features of the System Board..................................................................
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
Award BIOS Setup Utility.................................................................................................
NVRAID BIOS............................................................................................................................
Updating the BIOS..................................................................................................................
Chapter 4 - Supported Softwares
Drivers, Utilities and Software Applications......................................................
Installation Notes.......................................................................................................................
7
11
16
17
18
23
28
33
42
58
98
99
101
113

Introduction
1
6
Appendix A - Enabling Hyper-Threading
Technology
Enabling Hyper-Threading Technology...................................................................
System Error Messages
POST Beep.................................................................................................................................
Error Messages.........................................................................................................................
Appendix C - Troubleshooting
Troubleshooting Checklist...............................................................................................
Appendix D - Watchdog Timer
Watchdog Timer......................................................................................................................
117
117
114
119
123

1
Introduction
7
Chapter 1 - Introduction
Specifications
Processor
The system board is equipped with Socket 478 for installing one of
the following supported processors.
• Intel®Pentium®4 (Prescott and Northwood) processor up to
3.4GHz+
- Intel Hyper-Threading Technology
- FSB: 533MHz and 800MHz
• Intel®Celeron®/ Celeron®D processor
- 400/533MHz system data bus
• Socket 478
Chipset
• Intel®875P chipset
- Intel®82875P Memory Controller Hub (MCH)
- Intel®6300ESB Hance Rapids I/O Controller Hub
System Memory
• Supports dual channel (128-bit wide) memory interface
- Each channel supports 2 DIMM sockets
• Supports up to 4GB system memory
• Supports Dynamic mode to optimize system performance
• Synchronous operation with processor system bus
- PC2100/PC2700/PC3200 (DDR266/DDR333/DDR400)
with 800MHz FSB CPU (supports PAT mode). DDR333 will
run at 320MHz memory frequency when used with 800MHz
FSB CPU.
- Use PC2100/PC2700 (DDR266/DDR333) with 533MHz
FSB CPU
- Use PC2100 (DDR266) with 400MHz FSB CPU
• Supports ECC/non-ECC DIMMs
• Supports unbuffered DIMMs

Introduction
1
8
BIOS
• Award BIOS
• 4Mbit flash memory
• Supports optional BIOS Write Protect function by software
Energy Efficient Design
• Supports ACPI specification and OS Directed Power
Management
• Supports ACPI STR (Suspend to RAM) function
• Wake-On-Events include:
- Wake-On-PS/2 Keyboard/Mouse
- Wake-On-USB Keyboard/Mouse
- Wake-On-Ring (external modem)
- Wake-On-LAN
- RTC timer to power-on the system
• System power management supported
• CPU stopped clock control
• Microsoft®/Intel®APM 1.2 compliant
• Soft Power supported - ACPI v1.0a specification
• AC power failure recovery
Damage Free Intelligence
• Monitors CPU/system temperature and overheat alarm
• Monitors Vcore/1.5V/3.3V/5V/12V/VBAT/5VSB voltages and
failure alarm
• Monitors chassis/CPU/2nd fan speed and failure alarm
• Read back capability that displays temperature, voltage and fan
speed
• CPU Fan Protection function monitors the CPU fan during
system boot-up
• CPU Temperature Protection function monitors CPU temperature
during system boot-up
• Supports Watchdog Timer function
Onboard Audio Features
• 18-bit stereo full-duplex codec with independent variable
sampling rate
• High quality differential CD input
• True stereo line level outputs
• 2-channel audio output

1
Introduction
9
Onboard LAN Features
• Dual Gigabit LAN
- 82547GI Gigabit LAN CSA interface
- 82541GI Gigabit LAN PCI interface
• Integrated power management functions
• Fully compliant to IEEE 802.3 (10BASE-T), 802.3u (100BASE-TX)
and 802.3ab (1000BASE-T) standards
IDE Interface
• Supports ATA/33, ATA/66 and ATA/100 hard drives
• PIO Mode 4 Enhanced IDE (data transfer rate up to 14MB/sec.)
• Bus mastering reduces CPU utilization during disk transfer
• Supports ATAPI CD-ROM, LS-120 and ZIP
Serial ATA Interface with RAID
• Supports two Serial ATA interfaces which are compliant with
SATA 1.0 specification (1.5Gbps interface)
• Supports RAID 0 and RAID 1 (RAID is supported only on
Windows-based operating system)
Accelerated Graphics Port (A.G.P.)
• Supports 1.5V AGP 8x (2.13GB/sec.) and AGP 4x (1066MB/
sec.) for 3D graphics applications (AGP 2x and 3.3V AGP card
are not supported)
• Supports AGP 3.0 and AGP 2.0 spec.
Rear Panel I/O Ports
• 1 mini-DIN-6 PS/2 mouse port
• 1 mini-DIN-6 PS/2 keyboard port
• 1 DB-25 parallel port
• 2 DB-9 serial ports
• 2 RJ45 LAN ports
• 4 USB 2.0/1.1 ports
• Mic-in, Line-in and Line-out jacks

Introduction
1
10
I/O Connectors
• 2 connectors for 2 external serial ports
• 1 front audio connector for external line-out and mic-in jacks
• 1 connector for an external game/MIDI port
• 1 CD-in internal audio connector
• 1 S/PDIF-out connector
• 1 connector for IrDA interface
• 2 Serial ATA connectors
• 2 IDE connectors
• 1 floppy connector
• 1 20-pin ATX power connector
• 1 4-pin ATX 12V power connector
• 1 Wake-On-LAN connector
• 1 front panel connector
• 3 fan connectors
Expansion Slots
• 1 AGP slot
• 4 PCI slots
• 2 PCI-X 64-bit/66MHz slots
Compatibility
• PCI 2.2 and AC ’97 compliant
• Intel AGP version 3.0
PCB
• 6 layers, ATX form factor
• 30.5cm (12.05") x 24.4cm (9.6")

1
Introduction
11
Special Features of the System Board
Hyper-Threading Technology Functionality Requirements
The system board supports Intel processors with Hyper-Threading
Technology. Enabling the functionality of Hyper-Threading Technology
for your computer system requires ALL of the following platforms.
Components:
• CPU - an Intel®Pentium®4 Processor with HT Technology
• Chipset - an Intel®chipset that supports HT Technology
• BIOS - a BIOS that supports HT Technology and has it enabled
• OS - an operating system that includes optimizations for HT
Technology
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.
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. This reduces the MCH timing therefore providing
improved system performance.
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. This preventive measure has been added to
protect the CPU from damage and insure a safe computing environ-
ment.
CPU Temperature Protection
The CPU Temperature Protection function has the capability of
monitoring the CPU’s temperature during system boot-up. Once the
system has detected that the CPU’s temperature exceeded the
temperature limit defined in the BIOS, 5 warning beeps will sound then
the system will automatically power-off.

Introduction
1
12
Watchdog Timer
The Watchdog Timer function allows your application to regularly
“clear” the system at the set time interval. If the system hangs or
fails to function, it will reset at the set time interval so that your
system will continue to operate.
DDR
Double Data Rate SDRAM (DDR SDRAM) is a type of SDRAM
that doubles the data rate through reading and writing at both the
rising and falling edge of each clock. This effectively doubles the
speed of operation therefore doubling the speed of data transfer.
S/PDIF
S/PDIF is a standard audio file transfer format that transfers digital
audio signals to a device without having to be converted first to an
analog format. This prevents the quality of the audio signal from
degrading whenever it is converted to analog. S/PDIF is usually
found on digital audio equipment such as a DAT machine or audio
processing device.The S/PDIF connector on the system board sends
surround sound and 3D audio signal outputs to amplifiers and
speakers and to digital recording devices like CD recorders.
Serial ATA Interface with RAID
Serial ATA is a storage interface that is compliant with SATA 1.0
specification. With speed of up to 1.5Gbps, it improves hard drive
performance faster than the standard parallel ATA whose data
transfer rate is 100MB/s. The system board allows configuring RAID
on Serial ATA drives. It supports RAID 0 and RAID 1.
IrDA Interface
The system board is equipped with an IrDA connector for wireless
connectivity between your computer and peripheral devices. The
IRDA (Infrared Data Association) specification supports data
transfers of 115K baud at a distance of 1 meter.

1
Introduction
13
USB Ports
The system board supports USB 2.0 and USB 1.1 ports. USB 1.1
supports 12Mb/second bandwidth while USB 2.0 supports 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.
AGP
AGP is an interface designed to support high performance 3D
graphics cards for 3D graphics applications. It handles large amounts
of graphics data with the following features:
• Pipelined memory read and write operations that hide memory
access latency.
• Demultiplexing of address and data on the bus for nearly 100
percent efficiency.
Note:
AGP 2x and 3.3V AGP cards are not supported.
Dual Function Power Button
Depending on the setting in the “Soft-Off By PWR-BTTN” field of
the Power Management Setup, this switch will allow the system to
enter the Soft-Off or Suspend mode.
Wake-On-Ring
This feature allows the system that is in the Suspend mode or Soft
Power Off mode to wake-up/power-on to respond to calls coming
from an external modem or respond to calls from a modem PCI
card that uses the PCI PME (Power Management Event) signal to
remotely wake up the PC.
Important:
If you are using a modem add-in card, the 5VSB power source
of your power supply must support a minimum of ≥ 720mA.

Introduction
1
14
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.
Important:
The 5VSB power source of your power supply must support
≥ 720mA.
Wake-On-PS/2 Keyboard/Mouse
This function allows you to use the PS/2 keyboard or PS/2 mouse
to power-on the system.
Important:
The 5VSB power source of your power supply must support
≥ 720mA.
Wake-On-USB Keyboard/Mouse
This function allows you to use a USB keyboard or USB mouse to
wake up a system from the S3 (STR - Suspend To RAM) state.
Important:
If you are using the Wake-On-USB Keyboard/Mouse function for
2 USB ports, the 5VSB power source of your power supply
must support ≥ 1.5A. For 3 or more USB ports, the 5VSB
power source of your power supply must support ≥ 2A.
RTC Timer to Power-on the System
The RTC installed on the system board allows your system to
automatically power-on on the set date and time.

1
Introduction
15
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. Currently, only Windows®®
®®
®98SE/2000/ME/XP supports
the ACPI function. ACPI when enabled in the Power Management
Setup will allow you to use the Suspend to RAM function.
With the Suspend to RAM function enabled, you can power-off the
system at once by pressing the power button or selecting “Standby”
when you shut down Windows®®
®®
®98SE/2000/ME/XP without having
to go through the sometimes tiresome process of closing files,
applications and operating system. This is because the system is
capable of storing all programs and data files during the entire
operating session into RAM (Random Access Memory) when it
powers-off. The operating session will resume exactly where you left
off the next time you power-on the system.
Important:
The 5VSB power source of your power supply must support
≥ 1A.
AC Power Failure Recovery
When power returns after an AC power failure, you may choose to
either power-on the system manually, let the system power-on
automatically or return to the state where you left off before power
failure occurs.

Introduction
1
16
Package Checklist
The system board package contains the following items:
;One system board
;One user’s manual
;One IDE cable
;One Serial ATA data cable
;One Serial ATA power cable
;One 2-port serial cable
;One I/O shield
;One “Main Board Utility” CD
;One Intel RAID driver diskette
If any of these items are missing or damaged, please contact your
dealer or sales representative for assistance.

17
2
Hardware Installation
System Board Layout
Chapter 2 - Hardware Installation
KB
Mouse
COM 1
Parallel
COM 2
LAN 1
USB 1-2
LAN 2
USB 3-4
Mic-in
Line-in
Line-out
1PS/2 power
select (JP2)
1USB 1-4 power
select (JP1)
Intel
Gigabit
82547GI
Intel
Gigabit
82541GI
Chassis open (J2)
1
Socket 478
1
+12V power
I/O
chip
1
Game/MIDI
1
CD-in
Front audio
S/PDIF
IrDA
1
Audio
codec
1
1
PCI Standby
LED
DDR 1
DDR 2
DDR 1
DDR 2
Channel 0 Channel 1
1
CPU fan
1
2nd fan
DIMM Standby
LED
Intel
82875P
Intel
Hance
Rapids
BIOS
1
ATX p ower
Battery
1
1
IDE 1
IDE 2
1
Clear CMOS
(JP3)
1
1
Chassis
fan
1
COM 3
1
COM 4
1
SATA 2
1
SATA 1
PCI-X Slot 1
AGP
PCI-X Slot 2
PCI Slot 1
PCI Slot 2
PCI Slot 3
PCI Slot 4
FDD
1
Front panel
1
Power-on
select (J22)
1
WOL

18
2Hardware Installation
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. If a wrist strap is unavailable,
establish and maintain contact with the system chassis throughout
any procedures requiring ESD protection.
The system board supports DDR SDRAM DIMM. Double Data
Rate SDRAM (DDR SDRAM) is a type of SDRAM that doubles the
data rate through reading and writing at both the rising and falling
edge of each clock. This effectively doubles the speed of operation
therefore doubling the speed of data transfer.
The four DDR DIMM sockets on the system board are divided into
2 channels:
Channel 0 - DDR 1 and DDR 2
Channel 1 - DDR 1 and DDR 2
.
.
.
.
.
.
.
.
DDR 1
DDR 2
DDR 1
DDR 2
Channel 0
Channel 1

19
2
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.
Dual Channel (DC)
Dual channel provides better system performance because it doubles
the data transfer rate.
Dynamic Mode Addressing
This mode minimizes the overhead of opening/closing pages in
memory banks allowing for row switching to be done less often.
•DIMMs are on the same channel.
•DIMMs in a channel can be identical or
completely different.
•Not all slots need to be populated.
•DIMMs of different memory configura-
tions are on different channels.
•Odd number of slots can be popu-
lated.
•DIMMs of the same memory configu-
ration are on different channels.
•In single channel, requires even
number or rows (side of the DIMM)
populated. This mode can be enabled
with 1 SS, 2 SS or 2 DS.
•In VSC mode, both channels must have
identical row structure.
Single Channel
Virtual Single
Channel
Dual Channel
Dynamic Mode
Addressing

20
2Hardware Installation
The table below lists the various optimal operating modes that should
be configured for the memory channel operation.
Config
No memory
Single channel 0
Single channel 0
Single channel 0
Single channel 1
Single channel 1
Single channel 1
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Virtual single channel
Dual channel
Dual channel
Dual channel
DDR 1
E
P
P
E
E
E
E
E
E
E
P
P(**)
p(**)
P
P(**)
P(**)
E
P(*)(1,3)
P(*)(1,3)
DDR 2
E
E
P
P
E
E
E
P(**)
P
P(**)
E
E
E
P(**)
P
P(**)
P(*)(2,4)
E
P(*)(2,4)
DDR 1
E
E
E
E
P
P
E
E
P
P
E
P(**)
P(**)
E
P(**)
P(**)
E
P(*)(1,3)
P(*)(1,3)
DDR 2
E
E
E
E
E
P
P
P(**)
E
P(**)
P
E
P
P(**)
E
P(**)
P(*)(2,4)
E
P(*)(2,4)
Continued on the next page...
BIOS Setting
Configure the system memory in the Advanced Chipset Features
submenu of the BIOS.
Channel 0 Channel 1