Jetway P4845GLM1A User Manual
P4845GLM
USER'S MANUAL
M/B For Socket 478 Pentium 4 Processor
Trademark:
NO. G03-P4845G1A
Release date: October 2002
* 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.
TABLE OF CONTENT
USER’S NOTICE ..........................................................................................................1
MANUAL REVISION INFORMATION..........................................................................1
COOLING SOLUTIONS ..............................................................................................1
CHAPTER 1 INTRODUCTION OF P4845GLM MOTHERBOARD
1-1 FEATURE OF MOTHERBOARD.......................................................................... 2
1-2 SPECIFICATION ..................................................................................................... 3
1-3 PERFORMANCE LIST ...........................................................................................4
1-4 LAYOUT DIAGRAM & JUMPER SETTING ......................................................5
CHAPTER 2 HARDWARE INSTALLATION
2-1 HARDWARE INSTALLATION STEPS ................................................................7
2-2 CHECKING MOTHERBOARD'S JUMPER SETTING......................................7
2-3 INSTALL CPU ..........................................................................................................8
2-3-1 GLOSSARY ...................................................................................................8
2-3-2 ABOUT INTEL PENTIUM 4 478-PIN CPU ..............................................9
2-4 INSTALL MEMORY ............................................................................................... 10
2-5 EXPANSION CARD .................................................................................................11
2-5-1 PROCEDURE FOR EXPANSION CARD INSTALLATION ..................11
2-5-2 ASSIGNING IRQ FOR EXPANSION CARD ............................................11
2-5-3 INTERRUPT REQUEST TABLE FOR THIS MOTHERBOARD.......... 12
2-6 CONNECTORS, HEADERS.................................................................................... 12
2-6-1 CONNECTORS .............................................................................................12
2-6-2 HEADERS ......................................................................................................15
2-7 STARTING UP YOUR COMPUTER..................................................................... 18
CHAPTER 3 INTRODUCING BIOS
3-1 ENTERING SETUP.................................................................................................. 19
3-2 GETTING HELP....................................................................................................... 19
3-3 THE MAIN MENU ...................................................................................................20
3-4 STANDARD CMOS FEATURES............................................................................ 21
3-5 ADVANCED BIOS FEATURES .............................................................................22
3-6 ADVANCED CHIPSET FEATURES ..................................................................... 24
3-6-1 DRAM TIMING SETTINGS .......................................................................25
3-7 INTEGRATED PERIPHERALS............................................................................. 26
3-7-1 ONBOARD IDE FUNCTION ......................................................................26
3-7-2 ONBOARD DEVICE FUNCTION.............................................................. 27
3-7-3 ONBOARD SUPER IO FUNCTION .......................................................... 28
3-8 POWER MANAGEMENT SETUP .........................................................................29
3-8-1 PM TIMER RELOAD EVENTS................................................................. 30
3-9 PNP/PCI CONFIGURATION SETUP ................................................................... 30
3-9-1 IRQ RESOURCES .......................................................................................31
3-10 PC HEALTH STATUS............................................................................................ 32
3-11 MISCELLANEOUS CONTROL............................................................................33
3-12 LOAD STANDARD/OPTIMIZED DEFAULTS ..................................................34
3-13 SET SUPERVISOR/USER PASSWORD ..............................................................34
CHAPTER 4 DRIVER & FREE PROGRAM INSTALLATION
MAGIC INSTALL SUPPORTS WINDOWS 95/98/98SE/NT4.0/2000 .........................35
4-1 INF
4-2 VGA
4-3 SOUND
4-4 PC-CILLIN INSTALL PC-CILLIN2002 ANTI-VIRUS PROGRAM..............38
4-5 MAGIC BIOS INSTALL BIOS LIVE UPDATE UTILITY...................................40
4-6 IAA
4-7 HOW TO INSTALL USB 2.0 DRIVER ..................................................................41
4-8 HOW TO DISABLE ON-BOARD SOUND............................................................ 42
4-9 HOW TO UPDATE BIOS ........................................................................................42
INSTALL INTEL 845 CHIPSET SYSTEM DRIVER
INSTALL INTEL 845G VGA DRIVER
INSTALL ALC AUDIO CODEC DRIVER
INSTALL INTEL APPLICATION ACCELERATOR SOFTWARE
..................................................37
.............................................37
.............................36
....41
i
USER’S NOTICE
COPYRIGHT OF THIS MANUAL BELONGS TO THE MANUFACTURER. NO PART OF THIS MANUAL,
INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT MAY BE REPRODUCED,
TRANSMITTED OR TRANSLATED INTO ANY LANGUAGE IN ANY FORM OR BY ANY MEANS WITHOUT
WRITTEN PERMISSION OF THE MANUFACTURER.
THIS MANUAL CONTAINS ALL INFORMATION REQUIRED TO USE P4845GLM MOTHER-BOARD AND WE
DO ASSURE THIS MANUAL MEETS USER’S REQUIREM ENT BUT WILL CHANGE, CORRECT ANY TIME
WITHOUT NOTICE. MANUFACTURER PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY
KIND, AND WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTIAL OR CONSEQUENTIAL
DAMAGES (INCLUDING DAMANGES FOR LOSS OF PROFIT, LOSS OF BUSINESS, LOSS OF USE OF DATA,
INTERRUPTION OF BUSINESS AND THE LIKE).
PRODUCTS AND CORPORATE NAMES APPEARING IN THIS MANUAL MAY OR MAY NOT BE
REGISTERED TRADEMARKS OR COPYRIGHTS OF THEIR RESPECTIVE COMPANIES, AND THEY ARE
USED ONLY FOR IDENTIFICATION OR EXPLANATION AND TO THE OWNER’S BENEFIT, WITHOUT
INTENT TO INFRINGE.
Manual Revision Information
Reversion Revision History Date
1.0 First Release October 2002
Item Checklist
5
P4845GLM Motherboard
5
Cable for IDE/Floppy
5
CD for motherboard utilities
□
Cable for USB Port 3/4 (Option)
5
P4845GLM User’s Manual
Intel Pentium 4 Processor Family
Cooling Solutions
As processor technology pushes to faster speeds and higher performance, thermal management
becomes increasingly crucial when building computer systems. Maintaining the proper thermal
environment is key to reliable, long-term system operation. The overall goal in providing the proper
thermal environment is keeping the processor below its specified maximum case temperature.
Heatsinks induce improved processor heat dissipation through increased surface area and
concentrated airflow from attached fans. In addition, interface materials allow effective transfers of
heat from the processor to the heatsink. For optimum heat transfer, Intel recommends the use of
thermal grease and mounting clips to attach the heatsink to the processor.
When selecting a thermal solution for your system, please refer to the website below for collection of
heatsinks evaluated and recommended by Intel for use with Intel processors. Note, those heatsinks are
recommended for maintaining the specified Maximum T case requirement. In addition, this collection
is not intended to be a comprehensive listing of all heatsinks that support Intel processors.
For vendor list of heatsink and fan, please visit :
http://developer.intel.com/design/Pentium4/components/index
Chapter 1
1
Introduction of P4845GLM Motherboard
1-1 Feature of motherboard
The P4845GLM motherboard is design for use Intel Pentium 4 Processor in 478 Pin
Package/Northwood Processor with the Intel 845GL Chipset delivers a high performance and
professional desktop platform solution. Which utilize the Socket 478 design and the memory
size expandable to 2.0GB.
The P4845GLM motherboard use the newest 845GL Chipset Supports 400MHz System Bus
in data transfer rate. The motherboard offer ULTRA ATA
throughout that boosts overall system performance.
With integrated 2D/3D Graphics Accelerator which supports 256 bit graphics core, and supports
hardware motion compensation assist for software MPEG/DVD decode, makes this board lower
cost alternative to a video card. For those wanting even greater graphic performance.
These motherboards also has an integrated AC’97 2.1 CODEC on board support 3D surround
positioning Audio, which is fully compatible with Sound Blaster Pro that gives you the best
sound quality and compatibility.
With USB control as well as capability of expanding to 6 USB2.0 function ports to meet
future USB demand, also these motherboards built-in hardware monitor function. This will
monitor and protect your computer. These motherboards provided special design in hardware
to protect BIOS from virus crash BIOS data.
These motherboard provides special function in BIOS Setup to setting CPU Host clock step
by step increasing let users to approach over clocking.
P4845GLM provides high performance & meets future specification demand. It is really wise
choice for your computer.
to provide speedier HDD
100
1-2 Specification
2
Spec Description
Micro ATX form factor 4 layers PCB size: 24.4x22.0cm
Design
Chipset
CPU Socket
(mPGA478B Socket)
Memory Socket
Expansion Slot &
Headers
Integrate IDE
Audio
BIOS
Multi I/O
∗
Intel 845GL Graphics Memory Controller Hub (GMCH)
∗
Chipset
Intel 82801DB I/O Controller Hub (ICH4) Chipset
∗
Support Intel Pentium 4 478 Pin package utilizes Flip-Chip Pin
∗
Grid Array (FC-PGA2) package processor
Support CPU Frequency 400MHz for P4845GLM
∗
Support 1.5G∼2.8G 478 Pin Pentium 4 processor
∗
Reserves support for future Intel Pentium 4 processors
∗
184-pin DDR SDRAM module socket x2
∗
Support DDR266/DDR200 DRAM
∗
Expandable to 2.0GB
∗
32-bit PCI slot x3
∗
CNR slot x1
∗
Two PCI IDE controllers support 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
AC’97 Digital Audio controller integrated
∗
AC’97 2.1 Audio CODEC on board
∗
Sound Blaster Pro compliant
∗
Audio driver and utility included
∗
Award 2MB Flash ROM
∗
PS/2 keyboard and PS/2 mouse connectors
∗
Floppy disk drive connector x1
∗
Parallel port x1, Serial port x2
∗
USB 2.0 connector x2
∗
USB 2.0 headers x2 (connecting cable option)
∗
Audio connector Line-in, Line-out, MIC & Game Port
∗
1-3 Performance List
3
The following performance data list is the testing result of some popular benchmark testing
programs. These data are just referred by users, and there is no responsibility for different
testing data values gotten by users (the different Hardware & Software configuration will
result in different benchmark testing results.)
Performance Test Report
CPU:
DRAM:
VGA Expansion Card:
Hard Disk Driver:
BIOS:
Win 98SE
OS:
Frame Buffer
Intel Pentium 4 1.9GHz mPGAB package
256MB DDR266 SDRAM x1 (SAMSUNG K4H280838B-TCB0)
NVDIA Geforce2 MX400-64MB (1024x768 Hi-color)
IBM DTLA-305040 (ATA-100)
Award Optimal default
8M On Board
Geforce2
MX200
Geforce2
MX400
VGA
3D Mark 2000 3392 2917 5408
3D Mark 2001SE 1420 1217 2555
3D Winbench 2000 69.8 55.5 104
Final Reality 12.07 10.18 10.06
Content Creation Winstone 2000 44.6 43.8 44.5
Content Creation Winstone 2001 52.5 55.8 56.1
Content Creation Winstone 2002 19.9 20.8 20.8
Business Winstone 2001 46 46.1 46.7
Winbench 99:
CPU Mark 99 113 110 113
FPU Winmark 99 6640 6620 6620
Business Disk Winmark99 5110 5230 5230
Hi-end Disk Winmark99 17100 18800 16600
Business Graphic Winmark 375 408 438
Hi-end Graphic Winmark 1110 1260 1270
SYS Mark 2000/2001 : SISMark 2000/2001 Rating (Internet Content Creation / Office
Productivity)
SISMark 2000 211 (232/196) 215 (233/203) 216 (232/205)
SISMark 2001 156 (172/142) 151 (172/133) 154 (171/138)
SISOFT Sandra 2002 :
Dhrystone ALU MIPS 3577 3578 3582
Whetstone FPU MFLOPS 1141/2378 1149/2359 1142/2356
RAM Int Buffered iSSE2 MB/S 1900 2033 2033
RAM Float Buffered iSSE2 MB/S 1831 1947 1944
Integer SSE2 IT/S 7582 7570 7565
Floating-Point SSE2 IT/S 9200 9206 9219
QUAKE3 DEMO1 FPS 76.6 118.9 172.1
DEMO2 FPS 76.3 120.2 173.0
WCPUID System / CPU Clock 101/1918.93 101/1918.92 101/1918.93
1-4 Layout Diagram & Jumper Setting
4
PS/2 MOUSE
PRINT
GAME/MIDI PORT
PS/2 Keyboard
PS2 KB/Mouse Port
ATX 12V Power Conn.
ATX Power Conn.
Front Panel Audio
Winbond W83627HF Chip
On board AC97’ Codec
Jumpers
CPU FAN
USB Port
COM2 Connector
Power FAN
PC99 Back Panel
CD Audio
PCI Slot
IR Connector
CNR Slot
Selector (JP6)
Jumper Name Description Page
USB
COM1 VGA
MIC
LINE-IN
LINE-OUT
CPU Socket
2M Flash ROM BIOS
DDR SDRAM DIMM x2
Intel 845GL Chipset
ATA 100 IDE Conn.
(JP2)
Front Side Bus Frequency
USB2 Port
Intel 82801DB Chip
CHS FAN
Clear CMOS (JP8)
Front Panel Connector
Wake On LAN
USB3 Port
Floppy Connector
5
JP1 CPU Frequency Select 3-pin Block P.7
JP8 CMOS RAM Clear 3-pin Block P.7
JP6 On board AC97’ Codec Selector 3-pin Block P.8
Connectors
Connector Name Description Page
PW2 ATX Power Connector 20-pin Block P.12
PW1 ATX 12V Power Connector 4-pin Block P.12
KBMS
USB1 USB Port Connector 4-pin Connector P.13
LPT1 Parallel Port Connector 25-pin Female P.13
GAME Audio/Game Connector 3 phone jack + 15-pin Connector P.13
VGA VGA Display Connector 15-pin Female Connector P.13
COM1 Serial Port COM1 Connector 9-pin Connector P.13
FLOPPY Floppy Driver Connector 34-pin Block P.13
IDE1/IDE2 Primary/Secondary IDE Connector 40-pin Block P.14
PS/2 Mouse & PS/2 Keyboard
Connector
6-pin Female P.13
Headers
Header Name Description Page
COM2 Serial Port COM2 Header 9-pin Block P.15
Front AUDIO Line-In/Out, MIC Headers 9-pin Block P.15
USB2/USB3 USB Port Headers 9-pin Block P.15
HDLED Hard Drive Action LED Headers 2-pin Block P.15
RST Reset SW Headers 2-pin Block P.15
SPK Speaker Connector 4-pin Block P.16
PWRLED Power LED Headers 5-pin Block
SMI SMI headers 2-pin Block P.16
PSON Power On Headers 2-pin Block P.16
WOL Wake On-LAN Headers 3-pin Block P.16
PWRFAN, CHSFAN,
FAN Speed Headers 3-pin Block P.16
CPUFAN
IR IR infrared module Headers 5-pin Block P.17
CDIN CD Audio-In Headers 4-pin Block P.17
Expansion Sockets
Socket/Slot Name Description Page
ZIF Socket 478 CPU Socket 478-pin mPGAB CPU Socket P.9
DDR1, DDR2 DDR Module Socket 184-pin DDR SDRAM Module
Expansion Socket
PCI1 ∼ PCI3
PCI Slot 32-bit PCI Local Bus Expansion slots P.11
CNR CNR Slot Communication Network Riser Slot
P.16
P.10
Chapter 2
Hardware installation
6
2-1 Hardware installation Steps
Before using your computer, you had better complete the following steps:
1. Check motherboard jumper setting
2. Install CPU and Fan
3. Install System Memory (DIMM)
4. Install Expansion cards
5. Connect IDE and Floppy cables, Front Panel /Back Panel cable
6. Connect ATX Power cable
7. Power-On and Load Standard Default
8. Reboot
9. Install Operating System
10. Install Driver and Utility
2-2 Checking Motherboard’s Jumper Setting
(1) CPU Frequency Select (3-pin) : JP1
CPU Clock JP1
AUTO 1-2 closed
100 (400) MHz 2-3 closed
133 (533) MHz Open
1 3
JP1
133MHz
13
JP1
AUTO
CPU Front Side Bus Frequency Select
13
JP1
100MHz
(2) CMOS RAM Clear (3-pin) : JP8
A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2
pins of JP8 to store the CMOS data.
To clear the CMOS, follow the procedure below:
1. Turn off the system and unplug the AC power
2. Remove ATX power cable from ATX power connector
3. Locate JP8 and short pins 2-3 for a few seconds
4. Return JP8 to its normal setting by shorting pins 1-2
5. Connect ATX power cable back to ATX power connector
Note: When should clear CMOS
1. Troubleshooting
2. Forget password
7
3. After over clocking system boot fail
13
JP8
1 3
JP8
1-2 closed Normal (Default)
CMOS RAM Clear Setting
(3) On-board AC97’ Codec Selector (3-pin) : JP6
13
JP6
1-2 closed Enabled (Default)
2-3 Install CPU
2-3-1 Glossary
2-3 closed Clear CMOS
1 3
JP6
2-3 closed Disabled
On-board AC97’ Codec Selector
Chipset (or core logic) - two or more integrated circuits which control the interfaces between
the system processor, RAM, I/O devises, and adapter cards.
Processor slot/socket - the slot or socket used to mount the system processor on the
motherboard.
Slot (AGP, PCI, ISA, RAM) - the slots used to mount adapter cards and system RAM.
AGP - Accelerated Graphics Port - a high speed interface for video cards; runs at 1X
(66MHz), 2X (133MHz), or 4X (266MHz).
PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound
cards, network interface cards, and modems; runs at 33MHz.
ISA - Industry Standard Architecture - a relatively low speed interface primarily used for
sound cards and modems; runs at approx. 8MHz.
Serial Port - a low speed interface typically used for mouse and external modems.
Parallel Port - a low speed interface typically used for printers.
PS/2 - a low speed interface used for mouse and keyboards.
USB - Universal Serial Bus - a medium speed interface typically used for mouse, keyboards,
scanners, and some digital cameras.
Sound (interface) - the interface between the sound card or integrated sound connectors and
8
speakers, MIC, game controllers, and MIDI sound devices.
LAN (interface) - Local Area Network - the interface to your local area network.
BIOS (Basic Input/Output System) - the program logic used to boot up a computer and
establish the relationship between the various components.
Driver - software, which defines the characteristics of a device for use by another device or
other software.
Processor - the "central processing unit" (CPU); the principal integrated circuit used for doing
the "computing" in "personal computer"
Front Side Bus Frequency -
the working frequency of the motherboard, which is generated
by the clock generator for CPU, DRAM and PCI BUS.
CPU L2 Cache -
the flash memory inside the CPU, normally Athlon CPU has 256K or above,
while Duron will have 64K.
2-3-2 About Intel Pentium 4 478-pin CPU
This motherboard provides a 478-pin surface mount, Zero Insertion Force (ZIF) socket,
referred to as the mPGA478B socket supports Intel Pentium 4 processor in the 478 Pin
package utilizes Flip-Chip Pin Grid Array (FC-PGA2) package technology.
The CPU that comes with the motherboard should 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!
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.
To install a CPU, first turn off your system and remove its cover. Locate the ZIF 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.
mPGA478B
Colden Arrow
CPU ZIF mPGAB Socket
When you put the CPU into the ZIF socket. No force require to insert of the CPU, then press
the level to Locate position slightly without any extra force.
2-4 Install Memory
9
This motherboard provides two 184-pin DUAL INLINE MEMORY MODULES (DIMM)
sites for memory expansion available from minimum memory size of 64MB to maximum
memory size of 2.0GB DDR SDRAM.
Valid Memory Configurations
Bank 184-Pin DIMM Total Memory
Bank 0, 1 (DDR1) DDR200/DDR266
DDR SDRAM Module
Bank 2, 3 (DDR2) DDR200/DDR266
DDR SDRAM Module
Total System Memory (Max. 2.0GB) 2
X1
X1
64MB∼1.0GB
64MB∼1.0GB
64MB∼2.0GB
NOTE!
Make sure the installed memory are DDR266 SDRAM support 133MHz
memory clock, otherwise the system may hang during startup.
Generally, installing DDR SDRAM modules to your motherboard is very easy, you can refer
to figure 2-4 to see what a 184-Pin DDR200/DDR266 DDR SDRAM module looks like.
DI MM2 (BANK2+ BANK3 )
DI MM1 (BANK0+ BANK1 )
NOTE!
WARNING!
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.
For the DDR SDRAM CLOCK is set at 133MHz, use only DDR266-compliant DDR
Modules. When this motherboard operate at 133Mhz, most system will not even
boot if non-compliant modules are used because of the strict timing issues, if your
SDR Modules are not DDR266-compliant, set the DDR SDRAM clock to 100MHz
to ensure system stability.
Figure 2-4
2-5 Expansion Cards
10
WARNING!
Turn off your power when adding or removing expansion cards or other system
components. Failure to do so may cause severe damage to both your motherboard
and expansion cards.
2-5-1 Procedure For Expansion Card Installation
1. Read the documentation for your expansion card and make any necessary hardware or
software setting for your expansion card such as jumpers.
2. Remove your computer’s cover and the bracket plate on the slot you intend to use.
3. Align the card’s connectors and press firmly.
4. Secure the card on the slot with the screen you remove above.
5. Replace the computer system’s cover.
6. Set up the BIOS if necessary.
7. Install the necessary software driver for your expansion card.
2-5-2 Assigning IRQs For Expansion Card
Some expansion cards need an IRQ to operate. Generally, an IRQ must exclusively assign to
one use. In a standard design, there are 16 IRQs available but most of them are already in use.
Standard Interrupt Assignments
IRQ Priority Standard function
0 N/A System Timer
1 N/A Keyboard Controller
2 N/A Programmable Interrupt
3 * 8 Communications Port (COM2)
4 * 9 Communications Port (COM1)
5 * 6 Sound Card (sometimes LPT2)
6 * 11 Floppy Disk Controller
7 * 7 Printer Port (LPT1)
8 N/A System CMOS/Real Time Clock
9 * 10 ACPI Mode when enabled
10 * 3 IRQ Holder for PCI Steering
11 * 2 IRQ Holder for PCI Steering
12 * 4 PS/2 Compatible Mouse Port
13 N/A Numeric Data Processor
14 * 5 Primary IDE Channel
15 * 1 Secondary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
2-5-3 Interrupt Request Table For This Motherboard
Interrupt request are shared as shown the table below:
INT A INT B INT C INT D INT E INT F INT G INT H
11
Slot 1
Slot 2
Slot 3
Onboard VGA
Onboard LAN
Onboard USB 1
Onboard USB 2
Onboard USB 3
AC97/MC97
√
√
√
√
√
√
√
√
√
IMPORTANT!
If using PCI cards on shared slots, make sure that the drivers support
“Shared IRQ” or that the cards don’t need IRQ assignments. Conflicts will
arise between the two PCI groups that will make the system unstable or
cards inoperable.
2-6 Connectors, Headers
2-6-1 Connectors
(1) Power Connector (20-pin block) : PW2
ATX Power Supply connector. This is a new defined 20-pins connector that usually
comes with ATX case. The ATX Power Supply allows to use 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.
PIN ROW2 ROW1
1 3.3V 3.3V
2 -12V 3.3V
3 GND GND
4 Soft Power On 5V
5 GND GND
6 GND 5V
7 GND GND
8 -5V Power OK
9 +5V +5V (for Soft Logic)
10 +5V +12V
Pin 1
(2) ATX 12V Power Connector (4-pin block) : PW1
This is a new defined 4-pins connector that usually comes with ATX Power Supply. The
ATX Power Supply which fully support Pentium 4 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.
12
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