Intel G31 EXPRESS CHIPSET SPECIFICAT User manual

、
USER'S MANUAL
Of
Intel G31 Express Chipset
&
Intel FW82801GB ICH Chipset
Based
M/B For LGA 775 Quad Core Ready
Intel Core Processor Family
No. G03-I31GM3-F
Rev: 3.0
Release date: July, 2008
Trademark:
* Specifications and Information contained in this documentation are furnished for information use only, and are
subject to change at any time without notice, and should not be construed as a commitment by manufacturer.

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ii
CHAPTER 1 INTRODUCTION OF INTEL G31 MOTHERBOARD SERIES
1-1 FEATURES OF MOTHERBOARD.................................................................................... 1
1-1.1 SPECIAL FEATURES OF MOTHERBOARD.................................................... 2
1-2 SPECIFICTION................................................................................................................... 
1-3 ITEM CHECKLIST..............................................................................................................4
1-4 LAYOUT DIAGRAM & JUMPER SETTING................................................................... 4
CHAPTER 2 HARDWARE INSTALLATION
2-1 INSTALL LGA 775 SUPPORTED INTEL PROCESSOR................................................ 5
2-2 INSTALL MEMORY............................................................................................................ 5
2-3 EXPANSION CARDS........................................................................................................... 6
CHAPTER 3 CONNCTORS, HEADERS & JUMPERS SETTING
3-1 CONNECTORS..................................................................................................................... 7
3-2 HEADERS.............................................................................................................................. 9
CHAPTER 4 USEFUL HELP
4-1 HOW TO UPDATE BIOS..................................................................................................... 12
4-2 TROUBLE SHOOTING....................................................................................................... 12
Environmental Protection Announcement
Do not dispose this electronic device into the trash while discarding. To minimize pollution
and ensure environment protection of mother earth, please recycle.
TABLE OF CONTENT

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Chapter 1
Introduction of Intel G31 Motherboard Series
1-1 Features of motherboard
The Intel G31 chipset motherboard series are based on the latest Intel G31 Express Chipset
and Intel FW82801GB ICH Chipset technology which supports the innovative 65nm and 90nm
Intel® Pentium® 4 Processor，Celeron 4xx Processor, Dual-Core Intel® Pentium® D Processor
8 and 9 Series, Intel® Core 2 Quad, Intel® Core 2 Duo® (Code Name: Conroe) Processor
with Intel® Hyper-Threading Technology and fully supports the future 45nm processors. The
motherboard is optimized to deliver innovative features and professional desktop platform
solution with the advantages of the new generation dual core Intel® Core 2 Duo® Processor for
those who demand the best experience of personal computing. Through the high bandwidth of
dual channel DDR2 533MHz/DDR2 667MHz /DDR2 800 system memories which are
expandable to 4.0GB and the next generation PCI Express interface for the latest graphics
cards from both NVIDIA & ATI.
The Intel G31 chipset motherboard series for Intel® Core 2 Quad and Intel® Core 2
Duo®Processor are absolutely the cost-effective solution for game enthusiasts and
applications, and it also meets the demanding usage of computing of gaming, multimedia
entertainment and business applications. Moreover, the Intel G31 express chipset incorporates
Intel Graphics Media Accelerator 3100 with a core frequency up to 400MHz which support the
Microsoft* DirectX* 9, Vertex Shader 2.0 Open GL1.4, hardware T&L, Clear Video
Technology and Windows Vista Aero to provide you incredible visual quality, faster graphics
performance and flexible display options without the need for a separate graphics card.
The motherboards implement Intel G31 Express Chipset which supports Front Side Bus
1333MHz/1066MHz/800MHz of data transferring and offers with 200MHz/266/333MHz
memory clock frequency for Dual channel DDR2 400/DDR2 533/DDR2 667/DDR800
memory DIMMs to double the performance of memory access. The motherboard is embedded
with ICH7 chipset of providing one parallel Ultra ATA 100 interface for two IDE drives and
four serial ATA2 interface of 3.0Gb / s data transfer rate for four serial ATA devices.
The G31 motherboard series offer one PCI-Express x16 graphics slot of 4Gbyte/sec data
transfer rate at each relative direction which gets 3.5 times of bandwidth more than AGP 8X
and up to 8Gbyte/sec peak concurrent bandwidth at full speed to guarantee the ultimate GPU
computing performance. One PCI Express x1 I/O slots offer 512Mbyte/sec concurrently
bandwidth which is over 3.5 times than 32-bit PCI at 133Mbye/sec; Two 32-bit PCI slots
guarantee the rich connectivity for the I/O of peripherals. The motherboards are designed of
tackling the profuse multimedia requirements nowadays.
The motherboards provide optional 10/100 Ethernet LAN function by using the Realtek RTL
8042 megabit LAN NIC or 10/ 100/1000 Ethernet LAN function by using the Marvell
88E8056B1 gigabit NIC LAN NIC. The optional embedded Realtek ALC662-GR/ALC883
chipset is fully compatible with Sound Blaster Prostandards providing Azalia 6-CH/8-CH
Audio CODEC offers you with the home cinema quality and satisfying software
compatibility.

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Embedded USB controller as well as capability of expanding to 8 of USB2.0 functional ports
delivering 480Mb/s of rich connectivity, these motherboards meet the demands of future USB
peripherals which are also equipped with hardware monitor function on system to monitor
and protect your system and maintain your non-stop business computing.
Some special features---CPU Thermal Throttling/ CPU Vcore 7-shift /OC-CON in this motherboard
are designed for power user to use the over-clocking function in more flexible ways. But please be
caution that the over-clocking maybe causes the fails in system reliabilities. This motherboard
provides the guaranteed performance and meets the demands of the next generation computing. But if
you insist to gain more system performance with variety possibilities of the components you choose,
please be careful and make sure to read the detailed descriptions of these value added product features,
please get them in the coming section.
1-1.1 Special Features of Motherboard
CPU Thermal Throttling Technology---(The CPU Overheat Protection Technology)
To prevent the increasing heat from damage of CPU or accidental shutdown while at high workload,
the CPU Thermal Throttling Technology will force CPU to enter partially idle mode from 87.5% to
12.5% according to preset CPU operating temperature in BIOS (from 40to 90). When the
system senses the CPU operating temperature reaching the preset value, the CPU operating bandwidth
will be decreased to the preset idle percentage to cool down the processor. When at throttling mode the
beeper sound can be optionally selected to indicate it is in working.
CPU Vcore 7-Shift--- (Shift to Higher Performance)
The CPU voltage can be adjusted up by 7 steps for the precisely over-clocking of extra demanding
computing performance.
OC-CON ---High-polymer Solid Electrolysis Aluminum Capacitors
The working temperature is from 55 degrees Centigrade below zero to 125 degrees Centigrade,
OC-CON capacitors possess superior physical characteristics that can be while reducing the working
temperature between 20 degrees Centigrade each time, intact extension 10 times of effective product
operation lives, at not rising degrees Centigrade of working temperatures each time a relative one, life
of product decline 10% only too.

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1-2 Specification
Spec Description
Design ∗Micro ATX form factor 4 layers PCB size: 24.4*17.5cm
Chipset ∗Intel G31 Memory Controller Hub (MCH) Chipset
∗Intel 82801GB I/O Controller Hub (ICH7) Chipset
CPU Socket
(LGA775 )
∗Support Intel Pentium 4, Celeron 4xx, Pentium D, Core 2 Duo and Core 2
Quad 775-Land LGA Package utilizes Flip-Chip Land Grid Array
(FCLGA) package processor
∗Suggest the power of the CPU should below 65w
∗Support FSB Frequency1333/ 1066/800 MHz
Memory Socket ∗240-pin DDR2 RAM module socket x 2
∗Support Dual channel DDR2 533/DDR2 667 /DDR2 800/MHz RAM
Module and which is expandable to 4.0GB.
x
Expansion Slots
∗PCI-Express x16 slot 1pcs.
∗PCI-Express x1 slot 1pcs
∗32-bit PCI slot 2pcs
Integrate IDE and
Serial ATA2
∗One PCI IDE controller that supports PCI Bus Mastering, ATA PIO/DMA
and the ULTRA DMA 33/66/100 functions that deliver the data transfer
rate up to 100 MB/s; four Serial ATA2 ports each provides 3.0 Gb /sec
data transfer rate.
Integrated VGA
∗Integrated Graphic Media Accelerator 3100
∗256-bit graphics core running at 400MHz
∗1.6 GPixels/sec and 1.6 GTexels/sec fill rate
∗Programmable frame buffer size from 16MB up to 256MB
∗DirectX 9.0C compliant 2D/3D graphics processor
LAN
∗Integrated optional Realtek RTL 8042 PCI 10/100 LAN chip or Marvell
88E8056B1 PCI –E 10 / 100 / 1000 LAN chip.
∗Support Fast Ethernet LAN function of providing optional 10Mb / 100Mb
/1000 Mb/s data transfer rate
HD Audio
∗Optional Realtek ALC883 8-CH/Realtek ALC662-GR Azalia 6-CH Audio
Codec integrated
∗Support optional 8-CH 3D surround & Positioning Audio
∗Audio driver and utility included
BIOS ∗Award 8MB SPI Flash ROM
Multi I/O
∗PS/2 keyboard and PS/2 mouse connectors
∗Floppy disk drive connector x1
∗Parallel header x1 / Serial port x1
∗D-Sub 15-pin VGA Conn.
∗USB 2.0 connector x 4, headers x4
∗Audio connector x1 (Line-in, Line-out, MIC)

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1-3 Item Checklist
5Intel G31 Platform Processor Chipset based motherboard
5Cable for IDE
5CD for motherboard utilities
5Cable for Serial ATA Port
5Intel G31 Platform Processor Chipset motherboard User’s Manual
1-4 Layout Diagram & Jumper Setting
ATX 12V Power Connector
Front Panel
Connector
ATX Power
Connector
CPU Socket mPGA775
Intel 82801GB
ICH Chipset
Power Led
Speak Conn.
DDR2
DIMMx2
USB Port
(USB2, USB3)
IR
6-CH ALC662-GR
Azalia Audio Codec
32-bit PCI Slot
COM
K
B／MS Power ON
Jumper (JP1)
USB Port
PS2 KB
Mouse Port
Optional 8-CH/6-CH
Audio Connector
SYSFAN1
Front Panel Audio
Optional Realtek RTL8042 PCI /
Marvell 88E8056B1 PCI –E
LAN Controller
ATA100
IDE Connector
Serial-ATA2
Connector
(SATA1, 2, 3, 4)
CPU FAN
PCI EXPRESSx1
USB Power ON Jumper (JP3)
VGA
RJ45 Ove
r
USB Port
PCI EXPRESSx16
CD Audio In
Floppy Connector
Clear CMOS (JBAT)
Intel G31Express
Chipset
SPI-CON
SYS FAN2
Parallel Connector
USB Power ON Jumper
(JP2)
8MBit SPI Flash
ROM BIOS

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Chapter 2
Hardware Installation
2-1 Install LGA 775 Supported Intel Processor
This motherboard provides a 775-pin surface mount, LGA775 Land Grid Array socket,
referred to as the LGA775 socket supports Intel Pentium 4 processor in the 775 Pin package
utilizes Flip-Chip Land Grid Array (FC-LGA) package technology.
The CPU that comes with the motherboard s hould have a cooling FAN attached to prevent
overheating. If this is not the case, then purchase a correct cooling FAN before you turn on
your system.
WARNING! 1.Be sure that there is sufficient air circulation across the processor’s
heatsink and CPU cooling FAN is working correctly, otherwise it may
cause the processor and motherboard overheat and damage, you may install
an auxiliary cooling FAN, if necessary.
2. Suggest the power of CPU should below 65w.
To install a CPU, first turn off your system and remove its cover. Locate the LGA775
socket and open it by first pulling the level sideways away from the socket then upward to a
90-degree angle. Insert the CPU with the correct orientation as shown below. The notched
corner should point toward the end of the level. Because the CPU has a corner pin for two
of the four corners, the CPU will only fit in the orientation as shown.
CPU LGA775 Socket
Colden Arrow
LGA775
2-2 Install Memory
This motherboard provides two 240-pin DDR2 DUAL INLINE MEMORY MODULES
(DIMM) socket for DDR2 memory expansion available from minimum memory volume of
128MB to maximum memory volume of 4.0GB DDR2 SDRAM.
Valid Memory Configurations
Bank 240-Pin DIMM PCS Total Memory
Bank 0, 1 (DIMM1) DDR2 533/DDR2 667/DDR2 800 X1 128MB∼2.0GB
Bank 2, 3 (DIMM2) DDR2 533/DDR2 667/DDR2 800 X1 128MB∼2.0GB
Total Memory (Max.4.0GB) 2 128MB∼4.0GB
Recommend DIMM Module Combination
1. One DIMM Module ----Plug in DIMM1
2. Two DIMM Modules---Plug in DIMM1 and DIMM2 for Dual channel function

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For Dual channel Limited!
3. Dual channel function only supports when 2 DIMM Modules plug in either both DIMM1 &
DIMM2
4. DIMM1 & DIMM2 must be the same type, same size, same frequency for dual channel
function.
Install DDR2 SDRAM modules to your motherboard is not difficult, you can refer to figure
below to see how to install a 240-Pin DDR2 533/DDR2 667/DDR2 800 SDRAM module.
NOTE! When you install DIMM module fully into the DIMM socket the eject tab
should be locked into the DIMM module very firmly and fit into its
indention on both sides.
2-3 Expansion Cards
The G31 motherboard series offer one PCI-Express x16 graphics slot of 4Gbyte/sec data
transfer rate at each relative direction which gets 3.5 times of bandwidth more than AGP 8X
and it’s up to a peak concurrent bandwidth of 8Gbyte/sec at full speed to guarantee the
ultimate GPU computing performance. Two 32-bit PCI slots guarantee the rich connectivity
for the I/O of peripherals. One PCI Express x1 I/O slot offers 512Mbyte/sec concurrently,
over 3.5 times more bandwidth than PCI at 133Mbye/sec. The motherboards are designed of
tackling the profuse multimedia requirements nowadays.
.

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Chapter 3
Connectors, Headers & Jumpers Setting
3-1 Connectors
(1) Power Connector (24-pin block) : ATXPWR
ATX Power Supply connector:
This is a new defined 24-pins
connector that usually comes with
ATX case. The ATX Power Supply
allows using soft power on
momentary switch that connect from
the front panel switch to 2-pins
Power On jumper pole on the
motherboard. When the power
switch on the back of the ATX
power supply turned on, the full
power will not come into the system
board until the front panel switch is
momentarily pressed. Press this
switch again will turn off the power to the system board.
** We recommend that you use an ATX 12V Specification 2.0-compliant power supply
unit (PSU) with a minimum of 350W power rating. This type has 24-pin and 4-pin
power plugs.
PE1 / PCI-E x16 Slot
32-bit PCI Slots
Pin 1
ROW1 ROW2
24-Pin
ROW1 ROW2
Pin 1
20-Pin
PIN ROW1 ROW2
1 3.3V 3.3V
2 3.3V -12V
3 GND GND
4 5V Soft Power On
5 GND GND
6 5V GND
7 GND GND
8 Power OK -5V
9 +5V (for Soft Logic) +5V
10 +12V +5V
11 +12V +5V
12 +3V GND
PE2 / PCI-E x1 Slot

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** If you intend to use a PSU with 20-pin and 4-pin power plugs, make sure that the 20-pin
power plug can provide at least 15A on +12V and the power supply unit has a minimum
power rating of 350W. The system may become unstable or may not boot up if the
power is inadequate.
(2) ATX 12V Power Connector (4-pin block) : ATX12V
This is a new defined 4-pins connector that usually comes with ATX Power Supply.
The ATX Power Supply which fully supports AM2 processor must including this
connector for support extra 12V voltage to maintain system power
consumption. Without this connector might cause system unstable
because the power supply can not provide sufficient current for
system.
(3) PS/2 Mouse & PS/2 Keyboard Connector: KB
The connectors are for PS/2 keyboard and PS/2 Mouse.
(4) USB Port connector: USB1, UL1
The connectors are 4-pin connectors that connect USB devices to the system board.
(5) LAN Port connector: UL1
This connector is standard RJ45 connector for Network.
The USBLAN1 support 10M/100M/1000M bps data transfer rate.
(6) Audio Line-In, Lin-Out, MIC, Surrback, Surround, GEN/LEF Connector:
SURROUND1
This Connector are 6 phone Jack for LINE-OUT, LINE-IN, MIC, Surrback, Surround,
GEN/LEF
Line-out : (GREEN) Audio output to speaker
Line-in : (BLUE) Audio input to sound chip
MIC : (PINK) Microphone Connector
Surround : (ORANGE) Audio output to speaker-Rear speaker out
CEN / LFE : (BLACKNESS) Audio output to speaker-Center/Subwoofer speaker out
Side Surround: (GRAY) Audio output to speaker-Side speaker out
(7) Floppy drive Connector (34-pin block): FLOPPY
This connector supports the provided floppy drive ribbon
cable. After connecting the single plug end to
motherboard, connect the two plugs at other end to the
floppy drives.
UL2
PS/2
Mouse
USB1
LAN
PS/2
Keyboard
Line-IN
Line-OUT
MIC-IN
Floppy Drive Connector
Pin 1
FDD
VGA
COM Surrback
CEN/LFE
Surround

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(8) Primary IDE Connector (40-pin block): IDE
This connector connects to the next set of Master and Slave
hard disks. Follow the same procedure described for the
primary IDE connector. You may also configure two hard
disks to be both Masters using one ribbon cable on the
primary IDE connector and another ribbon cable on the
secondary IDE connector.
•Two hard disks can be connected to each connector. The
first HDD is referred to as the “Master” and the second HDD is referred to as the
“Slave”.
•For performance issues, we strongly suggest you don’t install a CD-ROM or DVD-ROM
drive on the same IDE channel as a hard disk. Otherwise, the system performance on this
channel may drop.
(9) Serial-ATA Port connector:
SATA1 / SATA2 / SATA3/ SATA4
•These connectors support the provided Serial
ATA and Serial ATA2 IDE hard disk cable
to connecting the motherboard and serial
ATA hard disk.
(10)Serial COM Port: COM1
COM1 is the 9-pin connector. The On-board serial port can be disabled through BIOS
SETUP.
(11) VGA Connector (15-pin D-Sub) Connector: VGA
VGA is the 15-pin D-Subminiature female connector for display monitor.
3-2 Headers
(1) Line-Out/MIC Header for Front Panel (9-pin): AUDIO
This header connect to Front Panel Line-out, MIC connector
with cable.Without install the cable, this header default
setting is 5-6 short, 9-10 short. When you install the cable
you have take off these jumpers.
Primary IDE Connector
Pin 1
IDE1
IDE1
Serial-ATA1 & 2 Compatible Connectors
SATA2
SATA1
SATA4
SATA3
Line-Out, MIC Headers
AUDIO
Pin 1
MIC2-L
LINEOUT2-L
MIC2-R
LINEOUUT2-R
SENSE-FB
AUD_GND
AUD_GND
AUD_GND
AUD_JD 9
2
9
10

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(2) USB Port Headers (9-pin) :
USB2 / USB3
These headers are used for connecting the
additional USB port plug. By attaching an
option USB cable, your can be provided
with two additional USB plugs affixed to the
back panel.
(3) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(4) Power LED: PWR LED
The Power LED is light on while the system power is on. Connect the Power LED
from the system case to this pin.
(5) IDE Activity LED: HD LED
This connector connects to the hard disk activity indicator light on the case.
(6) Reset switch lead: RESET
This 2-pin connector connects to the
case-mounted reset switch for rebooting your
computer without having to turn off your power
switch. This is a preferred method of rebooting
in order to prolong the lift of the system’s power
supply. See the figure below.
(7) Power switch: PWR BTN
This 2-pin connector connects to the
case-mounted power switch to power ON/OFF
the system.
(8) FAN Power Headers: SYSFAN1, SYSFAN2
(3-pin), CPUFAN (4-pin)
These connectors support cooling fans of 350mA (4.2 Watts) or less, depending on the fan
manufacturer, the wire and plug may be different. The red wire should be positive, while the
black should be ground. Connect the fan’s plug to the board taking into consideration the
polarity of connector.
FAN Power Headers
CPUFAN
1 4
GND
+12V
CPUFANIN
CPUFANOUT
SYSFAN1
1
3
SYSFAN2
1
3
USB Port Headers
Pin1
USB2
VCC
-DATA
GND
+DATA
VCC
OC
-DATA
GND
+DATA
Pin1
USB3
VCC
-DATA
GND
+DATA
VCC
OC
-DATA
GND
+DATA
System Case Connections
HDLED
RESET
VCC5
GND
VCC5 PWR LED
PWRBTN
PWRBTN
PWRLED
HDDLE
RSTSW
NC GND
JW FP
Pin 1
SPEAK
SPKR
GND
NC
VCC5
Pin 1
PWRLED
Pin 1

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(9) CD Audio-In Headers (4-pin) : CDIN
CDIN are the connectors for CD-Audio Input signal.
Please connect it to CD-ROM CD-Audio output connector.
(10)Parallel Port header (25-pin): PARALLEL
The On-board Parallel Port can be disabled through the BIOS
SETUP. .
(11)IR infrared module Headers (5-pin) : IR
This connector supports the optional wireless transmitting and receiving infrared
module. You must configure the setting through the BIOS setup to use the IR function.
IR infrared module Headers
IR
Pin 1
GND
IRRX
NC
VCC5
IRTX
2
5
6
(12) SPDIF Out header: SPDIF Out
The SPDIF output is capable of providing digital audio to external speakers or compressed
AC3 data to an external Dolby digital decoder. Use this feature only when your stereo system
has digital input function.
CD Audio-In Headers
CDIN 4 1
Pin 1
PARALLEL Connector
12
HDMI_SPDIF_OUT GND
SPDIF

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Chapter 4 USEFUL HELP
4-1 HOW TO UPDATE BIOS
Before updating the BIOS, users have to “Disable” the “Flash Part Write Protect” selection in
“Miscellaneous Control” of BIOS SETUP. Otherwise the system the will not allow you to upgrade
BIOS by Award Flash Utility.
STEP 1. Prepare a boot disc. (you may make one by click START click RUN type SYS A:click OK)
STEP 2. Copy utility program to your boot disc. You may copy from DRIVER CD
X:\FLASH\AWDFLASH.EXE or download from our web site.
STEP 3. Download and make a copy of the latest BIOS for G31 motherboard series from the web
site to your boot disc.
STEP 4. Insert your boot disc into A:,
start the computer, type “Awdflash A:\xxxxxx.BIN /SN/PY/CC/R”
xxxxxx.BIN is the file name of latest BIOS
SN means don’t save existing BIOS data
PY means renew existing BIOS data
CC means clear existing CMOS data
R means restart computer
STEP 5. Press ENTER to update and flash the BIOS, then the system will restart automatically.
4-2 Trouble Shooting
Problem Solution
No power to the system to the all power light
don’t illuminate, fan inside power supply doesn’t
turn on.
1. Make sure power cable is security plugged in.
2. Replace cable. 3. Contact technical support.
System inoperative. Keyboard lights are on ,
power indicator lights are lit, and hard drive is
spinning.
Using ever pressure on both ends of the DIMM ,
press down firmly until the module snaps into
places.
System doesn’t boot from hard disk drive, can be
booted from optical drive. 1. Check cable running from disk to disk controller board. .Make sure both ends are
securely plugged in, check the drive type in the
standard CMOS setup. 2. Backing up the hard
drive is extremely important .All hard disks are
capable of breaking down at any time.
System only boots from optical drive .Hard disk
can be read and applications can be used but
booting from hard disk is impossible.
1. Back up date and applications files. 2.
Reformat the hard drive. Reinstall applications
and date using backup disks.
Screen message says “Invalid Configuration” or
“CMOS Failure” Review system ‘s equipment .Make sure correct information on is in setup.
Can not boot system after installing second hard
drive. 1. Set master /slave jumpers correctly. 2. Run SETUP program and select correct drive types.
Call the drive manufacture for compatibility with
other drives.