JETWAY 845DDA, 845DDAL, 845D PRO User Manual

845DDA/845DDAL

845D PRO

USER'S MANUAL

M/B For Socket 478 Pentium 4 Processor

NO. G03-845DDA3A

Release date: July 2002

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.

i

USER’S NOTICE ..........................................................................................................1

MANUAL REVISION INFORMATION..........................................................................1

COOLING SOLUTIONS ..............................................................................................1

CHAPTER 1 INTRODUCTION OF 845DDA/845DDAL/845D PRO 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 MOTHERBAORD'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 ............................................................................................... 9

2-5 EXPANSION CARD .................................................................................................10

2-5-1 PROCEDURE FOR EXPANSION CARD INSTALLATION ..................10

2-5-2 ASSIGNING IRQ FOR EXPANSION CARD ............................................11

2-5-3 INTERRUPT REQUEST TABLE FOR THIS MOTHERBOARD.......... 11

2-5-4 AGP SLOT .....................................................................................................12

2-6 CONNECTORS, HEADERS.................................................................................... 12

2-6-1 CONNECTORS .............................................................................................12

2-6-2 HEADERS ......................................................................................................16

2-7 STARTING UP YOUR COMPUTER..................................................................... 19

CHAPTER 3 INTRODUCING BIOS

3-1 ENTERING SETUP.................................................................................................. 20

3-2 GETTING HELP....................................................................................................... 20

3-3 THE MAIN MENU ...................................................................................................21

3-4 STANDARD CMOS FEATURES............................................................................ 22

3-5 ADVANCED BIOS FEATURES .............................................................................23

3-6 ADVANCED CHIPSET FEATURES ..................................................................... 25

3-6-1 DRAM TIMING SETTINGS .......................................................................26

3-7 INTEGRATED PERIPHERALS............................................................................. 27

3-7-1 ONCHIP IDE FUNCTION........................................................................... 27

3-7-2 ONCHIP DEVICE FUNCTION ..................................................................28

3-7-3 ONCHIP SUPER IO FUNCTION ...............................................................29

3-8 POWER MANAGEMENT SETUP .........................................................................30

3-8-1 PM TIMER RELOAD EVENTS................................................................. 32

3-9 PNP/PCI CONFIGURATION SETUP ................................................................... 32

3-9-1 IRQ RESOURCES .......................................................................................33

3-10 PC HEALTH STATUS............................................................................................ 33

3-11 MISCELLANEOUS CONTROL............................................................................34

3-12 LOAD STANDARD/OPTIMIZED DEFAULTS ..................................................35

3-13 SET SUPERVISOR/USER PASSWORD ..............................................................35

CHAPTER 4 DRIVER & FREE PROGRAM INSTALLATION

MAGIC INSTALL SUPPORTS WINDOWS 95/98/98SE/NT4.0/2000 .........................36

4-1 INF INSTALL INTEL 845 CHIPSET SYSTEM DRIVER.....................37

4-2 SOUND INSTALL ALC OR CMI AUDIO CODEC DRIVER .......................38

4-3 LAN INSTALL RTL8100 LAN CONTROLLER DRIVER...................... 40

4-4 PC-HEALTH INTEL 845 PC-HEALTH MONITOR.......................................... 41

4-5 MAGIC BIOS INSTALL BIOS LIVE UPDATE UTILITY ..................................43

4-6 IAA

INSTALL INTEL APPLICATION ACCELERATOR SOFTWARE

........44

4-7 PC-CILLIN

INSTALL PC-CILLIN2002 ANTI-VIRUS PROGRAM

...........................45

4-8 HOW TO DISABLE ON-BOARD SOUND............................................................ 46

4-9 HOW TO UPDATE BIOS ........................................................................................46

TABLE OF CONTENT

1

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 845DDA/845DDAL/845D

PRO MOTHER-BOARD AND WE DO ASSURE THIS MANUAL MEETS USER’S REQUIREMENT 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

INDI R E C T, SP E C I AL , 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

3.0 Third Edition July 2002

Item Checklist

5

845DDA/845DDAL/845D PRO

5

Cable for IDE/Floppy

5

CD for motherboard utilities

□

Cable for USB Port 3/4 (Option)

5

845DDA/845DDAL/845D PRO 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

2

Chapter 1

Introduction of 845DDA/845DDAL/845D PRO
Motherboard

1-1 Feature of motherboard

The 845DDA/845DDAL/845D PRO motherboard is design for use Intel Pentium 4
Processor in 478 Pin Package/Northwood Processor with the Intel 845D Chipset delivers
a high performance and professional desktop platform solution. Which utilize the
Socket 478 design and the memory size expandable to 2.0GB.

This motherboard use the newest Intel 845D Chipset Supports 400MHz System Bus in
data transfer rate and 133MHz SDRAM clock frequency support PC133/SDRAM. The
845DDA/845DDAL/845D PRO motherboard offers ULTRA ATA

100

to provide

speedier HDD throughout that boosts overall system performance.

The 845DDAL motherboard including PCI LAN Controller chip support 10/100
Mb/sec Base transfer rate.

These motherboards also has an integrated AC’97 2.1 CODEC on board which is fully
compatible with Sound Blaster Pro that gives you the best sound quality and
compatibility.

For those wanting even greater graphic performance, an AGP 4X slot is included on the
board.

(For 1.5V AGP card only. No for 3.3V or Universal AGP card).

With USB control as well as capability of expanding to 4 USB function ports, the
845DDA/845DDAL/845D PRO meet future USB demand also this motherboard has
built-in hardware monitor function. This will monitor and protect your computer.

The 845DDA/845DDAL/845D PRO motherboard provides special function in BIOS
Setup to setting CPU Host clock step by step increasing let users to approach over
clocking.

845DDA/845DDAL/845D PRO provides high performance & meets future specification
demand. It is really wise choice for your computer.

3

1-2 Specification

Spec Description

Design

∗

ATX form factor 4 layers PCB size: 30.5x21.0cm

Chipset

∗

Intel 845D Memory Controller Hub (MCH) Chipset

∗

Intel 82801BA I/O Controller Hub (ICH2) Chipset

CPU Socket

(mPGA478B Socket)

∗

Support Intel Pentium 4 478 Pin package utilizes Flip­Chip Pin Grid Array (FC-PGA2) package processor

∗

Support 1.5G∼2.2G 478 Pin Pentium 4 processor

∗

Reserves support for future Intel Pentium 4 processors

Memory Socket

∗

184-pin DDR SDRAM module socket x2

∗

Support DDR266/DD200 DRAM

∗

Expandable to 2.0GB

Expansion Slot &
Headers

∗

AGP slot x1 for AGP 1.5V standard only, support AGP 2.0
& 4X mode

∗

32-bit PCI slot x5

∗

CNR slot x1

Integrate IDE

∗

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

LAN On Board

(Only for 845DDAL)

∗

Realtek RTL8100 PCI LAN Controller chip

∗

Supports 10/100 Mb/sec data transfer rate

Audio

∗

AC’97 Digital Audio controller integrated

∗

AC’97 Audio CODEC on board

∗

Audio driver and utility included

∗

Support 4 channel Speaker

(Only for 845D PRO)

BIOS

∗

Award 2MB Flash ROM

Multi I/O

∗

PS/2 keyboard and PS/2 mouse connectors

∗

Floppy disk drive connector x1

∗

Parallel port x1

∗

Serial port x2

∗

USB connector x2

∗

USB headers x2 (connecting cable option)

∗

Audio connector (Line-in, Line-out, MIC & Game Port)

4

1-3 Performance List

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:

Intel Pentium 4 1.5GHz mPGAB package

DRAM:

128MB DDR SDRAM x2 (SAMSUNG K4H280838B-TCB0)

VGA Expansion Card:

RIVA Geforce 256 (1024x768 Hi-color) Driver V3.68

Hard Disk Driver:

IBM DTLA-305040 (ATA-100)

BIOS:

Award Optimal default

OS:

Win 98SE

Performance Test Report

Pentium 4 1.5GHz

3D Mark 99 6024
3D Mark 2000 4824
3D Mark 2001 1921
3D Winbench 99 V1.2 900
3D Winbench 2000 95.1
Final Reality 8.39
Winstone 99 V1.3 31.2
Content Creation Winstone 2000 40
Content Creation Winstone 2001 47.6
Business Winstone2001 41.2

Winbench 99:

CPU Mark 99 89.4
FPU Winmark 99 5140
Business Disk Winmark99 8170
Hi-end Disk Winmark99 21700
Business Graphic Winmark 347
Hi-end Graphic Winmark 984

SYS Mark 2000 : SISMark 2000 Rating (Internet Content Creation / Office
Productivity)

Suites 182 (195/172)
Official 185 (198/175)

SISOFT Sandra 2000 :

Dhrystone ALU MIPS 2815
Whetstone FPU MFLOPS 1847
Int ALU/RAM MB/S 1088
Float FPU/RAM MB/S 1103
QUAKE3 DEMO1 FPS 149.7
DEMO2 FPS 150.1

5

1-4 Layout Diagram & Jumper Setting

LINE-IN

MIC

GAME/MIDI PORT

COM1 COM2

PS/2 MOUSE

PS/2 Keyboard

USB

PRINT LAN

LINE-OUT

Winbond 83627HF Chip

IR Connector

CNR Slot

Front Panel Audio

PC99 Back Panel

CD Audio

PCI Slot

AGP Slot

K/B Power ON
Jumper (JP1)

Floppy Connector

Intel 845D Chip

Front Panel Connector

ATA 100 IDE Conn.

Clear CMOS (JP10)

ATX Power Conn.

USB Port

CPU FAN

2MBit Flash ROM BIOS

CPU Socket

DDR DIMM X2

Wake On Modem

SYSFAN2

Intel 82801BA Chip

USB Port

/LAN Connector

(for 845DDAL)

PS2 KB/Mouse Port

SYSFAN

ATX P6 Power Conn.

Wake On LAN

ATX 12V Power Conn.

AC97’ Audio Codec

6

Jumpers

Jumper Name Description Page

JP10 CMOS RAM Clear 3-pin Block P.7

JP1 Keyboard Power On Enable/Disabled 3-pin Block P.8

Connectors

Connector Name Description Page

ATXPWR ATX Power Connector 20-pin Block P.12
ATX12V ATX 12V Power Connector 4-pin Block P.13
ATXP6 ATX P6 Power Connector 6-pin Block P.13
J1

(PS2 KB/MOUSE)

PS/2 Mouse & PS/2 Keyboard
Connector

6-pin Female P.13

J2 (USB) USB Port Connector 4-pin Connector P.14

LAN LAN Connectors RJ-45 Connector P.14

PARALLEL Parallel Port Connector 25-pin Female P.14
AUD_GAME Audio/Game Connector 3 phone jack + 15-pin Connector P.14
COM1/COM2 Serial Port COM1/2 Connector 9-pin Connector P.14
FDD Floppy Driver Connector 34-pin Block P.14
IDE1/IDE2 Primary/Secondary IDE Connector 40-pin Block P.15

Only for 845DDAL

Headers

Header Name Description Page

AUDIO Line-In/Out, MIC header 9-pin Block P.16
USB1 USB Port Headers 9-pin Block P.16
IDE LED IDE activity LED 2-pin Block P.16
TURBO LED Turbo LED switch 2-pin Block P.16
RESET Reset switch lead 2-pin Block P.16
SPKR Speaker connector 4-pin Block P.17
PWR-LED Power LED 2-pin Block P.17
PWR BTN Power switch 2-pin Block P.17
WOL/WOM Wake On-LAN/Modem Headers 3-pin Block P.17
SYSFAN,SYSFAN2,
CPUFAN

FAN Speed Headers 3-pin Block P.18

IR IR infrared module Headers 5-pin Block P.18
CDIN CD Audio-In Headers 4-pin Block P.18

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

P.9

PCI1 ∼ PCI5

PCI Slot 32-bit PCI Local Bus Expansion slots P.10
AGP AGP 4X Mode Slot AGP Expansion Slot P.12
CNR CNR Slot Communication Network Riser Slot

7

Chapter 2

Hardware installation

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) CMOS RAM Clear (3-pin) : JP10

A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2
pins of JP10 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 JP10 and short pins 2-3 for a few seconds

4. Return JP10 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

3. After over clocking system boot fail

CMOS RAM Clear Setting

2-3 closed Clear CMOS

JP10

1

3

JP10

1

3

1-2 closed Normal (Default)

8

(2) Keyboard Power On function Enabled/Disabled: JP1

When setting Enabled you can using keyboard by key in password to power on system.

Keyboard Power On Setting

2-3 closed K/B Power ON Enabled

JP1

1

3

JP1

1

3

1-2 closed K/B Power ON Disable

(Default)

2-3 Install CPU

2-3-1 Glossary

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, scanners, and some digital cameras.
Sound (interface) - the interface between the sound card or integrated sound connectors and
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.

9

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.

CPU ZIF mPGAB Socket

Colden Arrow

mPGA478B

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

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

X1

64MB∼1.0GB

Bank 2, 3 (DDR2) DDR200/DDR266

DDR SDRAM Module

X1

64MB∼1.0GB

Total System Memory (Max. 2.0GB) 2

64MB∼2.0GB

10

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 DDR266/DDR200 DDR SDRAM module looks like.

DDR2 (BANK2 + BANK3)

DDR1 (BANK0 + BANK1)

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.

WARNING!

For the DDR SDRAM CLOCK is set at 133MHz, use only DDR266­compliant 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.

2-5 Expansion Cards

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

Figure 2-4

11

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
Slot 1

√

Slot 2

√

Slot 3

√

Slot 4

√

Slot 5

√

Onboard VGA
Onboard USB 1

√

Onboard USB 2

√

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.

2-5-4 AGP Slot

This motherboard provides an AGP Slot, only support the 1.5V 4X AGP VGA card.

12

Do not use AGP 2X card (3.3V) in this motherboard. It will burn and damage the
motherboard due to Intel® 845 chipset can not support AGP 2X (3.3V).

IMPORTANT!

Before you plug-in AGP card, please make sure the following notice is
fully understood and practiced. If your AGP card has “AGP 4X notch
(show below) please make sure your AGP card is AGP 4X (1.5V) not
AGP 2X (3.3V)

AGP SLOT

Example 1:

SiS 305 & ATi Rage 128 Pro AGP card those golden finger is compatible

with 2X/4X mode AGP slot, but only can support 2X (3.3V) only. If you
install these cards in Intel® 845 based motherboard it will burn and damage
the motherboard.

Example 2:

We also find Diamond Vipper V770 golden finger is design for 2X/4X mode

AGP Slot. It can be adjusted the jumper for AGP 2X (3.3V) or AGP 4X
(1.5V). But the factory default setting is 2X (3.3V). If you install this AGP
card in motherboard without change the jumper setting to 4X (1.5V), it will
burn the motherboard.

2-6 Connectors, Headers

2-6-1 Connectors

(1) Power Connector (20-pin block) : ATXPWR

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.

2x notch 4x notch

13

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) : ATX12V

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.

Pin 1

(3) ATX P6 Power Connector (6-pin block) : ATXP6

This is a new defined 6-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 3.3V and 5V voltage to maintain system power consumption.
Without this connector might cause system unstable because the power supply can not
provide sufficient current for system.

Power Plugs from Power Supply Power Connector on Motherboard

BLK

BL

K

BL

K

ORG

ORG
RED

GND

GND
GND

3.3V

3.3V

5V

(4) PS/2 Mouse & PS/2 Keyboard Connector: J1 (PS2 KB/MOUSE)

The connectors for PS/2 keyboard and PS/2 Mouse.