JETWAY V623DMP, V623DMW User Manual
V623DMP/V623DMW
USER'S MANUAL
M/B For Socket 370 Pentium III Processor
NO. G03-V623DMP
Rev:1.0
Release date: October 2003
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 ..........................................................................................................ii
MANUAL REVISION INFORMATION..........................................................................ii
THERMAL SOLUTIONS................................................................................................ii
CHAPTER 1 INTRODUCTION OF MOTHERBOARD
1-1 FEATURE OF MOTHERBOARD.......................................................................... 1
1-2 SPECIFICATION ..................................................................................................... 2
1-3 PERFORMANCE LIST ...........................................................................................3
1-4 LAYOUT DIAGRAM & JUMPER SETTING ......................................................4
CHAPTER 2 HARDWARE INSTALLATION
2-1 HARDWARE INSTALLATION STEPS ................................................................6
2-2 CHECKING MOTHERBOARD'S JUMPER SETTING...................................... 6
2-3 INSTALL CPU ..........................................................................................................7
2-3-1 GLOSSARY ...................................................................................................7
2-3-2 SETTING CPU BUS CLOCK & MEMORY CLOCK JUMPER ............9
2-3-3 INSTALL CPU............................................................................................... 9
2-3-4 OVERCLOCK RUNNING ...........................................................................9
2-4 INSTALL MEMORY ............................................................................................... 10
2-5 EXPANSION CARDS............................................................................................... 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.................................................................................... 13
2-6-1 CONNECTORS .............................................................................................13
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....................................................................................................... 20
3-3 THE MAIN MENU ...................................................................................................20
3-4 STANDARD CMOS FEATURES............................................................................ 22
3-5 ADVANCED BIOS FEATURES .............................................................................23
3-6 ADVANCED CHIPSET FEATURES ..................................................................... 25
3-6-1 DRAM TIMING SETTING.......................................................................... 26
3-6-2 AGP TIMING SETTINGS ...........................................................................27
3-6-3 PCI TIMING SETTINGS............................................................................. 27
3-7 INTEGRATED PERIPHERALS............................................................................. 27
3-7-1 ON-CHIP IDE FUNCTION.......................................................................... 28
3-7-2 ON-CHIP DEVICE FUNCTION .................................................................29
3-7-3 ON-CHIP SIO FUNCTION.......................................................................... 30
3-8 POWER MANAGEMENT SETUP .........................................................................31
3-8-1 WAKE UP EVENTS .....................................................................................32
3-9 PNP/PCI CONFIGURATION SETUP ................................................................... 33
3-10 PC HEALTH STATUS............................................................................................ 34
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 VIA 4 IN 1
INSTALL VIA SERVICE PACK 4 IN 1 DRIVER
...............................37
4-2 VGA
INSTALL VIA VGA DRIVER
............................................................38
4-3 SOUND
INSTALL CMI AUDIO CONTROLLER DRIVER
..........................39
4-4 LAN
INSTALL RTL810X LAN CONTROLLER DRIVER
.........................41
4-5 MAGIC BIOS
INSTALL BIOS LIVE UPDATE UTILITY
.........................................41
4-6 USB2.0
INSTALL VIA USB2.0 DEVICE DRIVER
.........................................43
4-7 PC-CILLIN
INSTALL PC-CILLIN 2002 ANTI-VIRUS PROGRAM
.....................43
4-8 HOW TO DISABLE ON-BOARD SOUND............................................................45
4-9 HOW TO UPDATE BIOS ........................................................................................45
TABLE OF CONTENT
ii
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 THIS 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 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 2003
Item Checklist
Motherboard
Cable for IDE/Floppy
CD for motherboard utilities
□
Cable for USB Port 3/4 (Option)
User’s Manual
□
Cable for COM2 Serial Port (Option)
□
Cable for S-Video TV-Out (Option for V623DMW)
Intel Processor Family
Thermal 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.
Vendor list for heatsink and fan of Pentium® !!! processor, please visit：
http://developer.intel.com/design/Pentiumiii/components/index.htm
Vendor list for heatsink and fan of Intel® Celeron™ processor, please visit：
http://developer.intel.com/design/celeron/components/index.htm
1
Chapter 1
Introduction of V623DMP/V623DMW Motherboard
1-1 Feature of motherboard
The V623DMP/V623DMW motherboard is design for use Intel’s new generation Pentium
processors, which utilize the Socket 370 design and the memory size expandable to 2GB.
This motherboard uses the newest VIA VT8623 (CLE266) SMA (Share Memory Architecture)
North bridge chipset and VT8235 south bridge chipset. These motherboards support Intel
Tualatin, Coppermine, Celeron and VIA C3 processors whose 133MHz front side bus &
133MHz memory interface delivers a clear upgrade path to the future generation of 133MHz
processors and DDR266 DRAM memory. It offers ULTRA DMA 133MB/sec (ATA 133) to
provide speedier HDD throughout that boosts overall system performance.
For V623DMP/V623DMW, with integrated 3D Graphic Acceleration, makes this board lower
cost alternative to a video card. V623DMP/V623DMW motherboard also integrated PCI LAN
Controller supports 10/100 BASE-T Transfer rate for those whom require faster LAN function
for net work. V623DMW embedded VIA VT1622A TV Encoder provide S-Video/ Composite
connector support NTSC/PAL system signal output.
This board also integrated PCI 6-Channel Audio Controller on board support 6-channel Audio
function, which is fully compatible with Sound Blaster Pro that gives you the best sound
quality and compatibility. With 2 USB controller as well as capability of expanding to 6 USB
connectors compliant to USB2.0 provided 480Mb/sec data transfer rate, which guarantees this
board to meet future USB demand. Moreover, these motherboards had built-in hardware
monitor function that capable of monitor and protect your computer.
This motherboard provides high performance & meets future specification demand. It is
really wise choice for your computer.
2
1-2 Specification
Spec Description
Design
∗
Micro ATX form factor 4 layers PCB size: 24.4x19.0cm
Chipset
∗
VIA VT8623 SMA (Share Memory Architecture) North Bridge
∗
VIA VT8235 South Bridge
Clock Generator
∗
ICS 950908 Clock Generator
∗
Support 66/100/133MHz system Bus Clock (CPU Bus Clock)
∗
Support CPU Frequency step by step setting in BIOS Setup
∗
Support 100/133 MHz system Memory clock
∗
Support 33MHz PCI Bus clock
CPU Socket
∗
Support Pentium III/Tualatin up to 1.2GHz processor
∗
Support Celeron™ up to 1.4GHz processor
∗
Support 66, 100 and 133MHz CPU Bus clock
∗
Reserves support for future Intel P3 processor
∗
Support VIA C3 processors (no support Samuel1 CPU)
Memory Socket
∗
184-pin DDRDIMM socket x2
∗
Support DDR200/DDR266 DDR memory
∗
Expandable to 2GB(512Mb x8/x16 DRAM technology)
Expansion Slot
∗
32-bit PCI slot x4 PCI-2.2 compliant
Integrate VGA
∗
Integrate 2D/3D graphic Engines
∗
8/16/32/64MB frame buffer using system memory
∗
Internal AGP 8x performance
∗
Support 24-bit 250MHz RAMDAC
TV-Out
(for V623DMW)
∗
VIA VT1622A TV Encoder
∗
Provided S-Video/Composite output for NTSC/PAL system
Integrate IDE
∗
2 channel of Bus Master IDE port supporting ULTRA DMA
33/66/100/133 mode devices
Integrate LAN
∗
Integrated RTL8100C PCI LAN Controller
∗
Support 10/100 BASE-T Transfer rate
Audio
∗
CMI 8738-6CH PCI Audio controller integrated
∗
Support 6-channel audio function, fully compliant to Sound
Blaster Pro
∗
Audio driver and utility included
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 2.0 connector x2
∗
USB 2.0 headers x4 (connecting cable option)
∗
Audio connector (Line-in, Line-out, MIC, Game Port)
3
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.)
CPU:
Intel Pentium III 1.13GHz FC-PGA
DRAM:
512MB DDR266 SDRAM x1 (NANYA NT5DS32MAT-7K)
Hard Disk Driver:
IBM IC35L040AVVN07-0 (ATA 100)
On Board VGA:
Share Memory (1024x768xHi-Color)
BIOS:
Award Optimal default
OS:
Windows XP Professional
Performance Test Report
1.13GHz
3D Mark 2001SE 855
3D Mark 2003 25
3D Winbench 2000 (32/32bit) 24.1
PC Mark 2002
CPU/Memory/HDD 3444/1419/920
Content Creation Winstone 2002 23.1
Content Creation Winstone 2003 23.6
Business Winstone 2002 21.5
Winbench 99:
Business Disk Winmark99 9430
Hi-end Disk Winmark99 32300
Business Graphic Winmark 187
Hi-end Graphic Winmark 622
SYS Mark 2001/2002 : SISMark 2001/2002 Rating ( Internet Content Creation /
Office Productivity )
SISMark 2001
132 (132 / 132)
SISMark 2002
114 (105 / 123)
SISOFT Sandra 2003 :
Dhrystone ALU MIPS 3064
Whetstone FPU MFLOPS 1509
RAM Int Buffered iSSE2 MB/S 882
RAM Float Buffered iSSE2 MB/S 870
Integer SSE2 IT/S 5921
Floating-Point SSE2 IT/S 7427
QUAKE3 DEMO1 FPS 354
DEMO2 FPS 33.3
Return to Castle Wolfenstein FPS 25.9
WCPUID System / CPU Clock 133.16/1131.85
4
1-4 Layout Diagram & Jumper Setting
2Mbit Flash ROM BIOS
PC99 Back Panel
370 CPU Socket
RTL8100C PCI LAN
Controller
DIMM Socket X2
Floppy Connector
VIA VT8623 Chip
ATA 100 IDE Connector
Front Panel Connector
ATX Power Connector
CPU FAN
VIA VT8235 Chip
K/B Power ON Jumper
(JP1)
IR Connector
PCI Slot
SFAN
COM2 Connector
VIA VT1211 I/O Chip
Clear CMOS (JP5)
PS2 KB/Mouse Port
Front Panel Audio
USB Power ON Jumper
(JP6)
CD Audio
PCI 6CH Audio Controller
Speaker Connector
LINE-OUT
LINE-IN
MIC
GAME/MIDI PORT
COM1 VGA
PS/2 MOUSE
PS/2 Keyboard
USB
PRINTLAN
Power LED Connector
USB Port/
LAN Connector
On board Sound Chip
Jumper (JP7)
SPDIF Connector
USB Port
(USB1, USB2)
Wake On LAN
TV OUT Connector
VIA VT1622A Chip
5
Jumpers
Jumper Name Description Page
JP1 Keyboard Power ON Function Setting 3-pin Block p.6
JP6 USB Power On Function Setting 3-pin Block p.6
JP5 CMOS RAM Clear Function Setting 3-pin Block p.7
JP7 On board Sound Chip Enabled/Disabled 3-pin Block p.7
Connectors
Connector Name Description Page
ATXPWR ATX Power Connector 20-pin Block p.13
KB/MS1 PS/2 Mouse & PS/2 Keyboard Connector 6-pin Female p.13
UL_B1 USB Port Connector 4-pin Connector p.13
LAN LAN Connector RJ45 Connector p.13
LPT Parallel Port Connector 25-pin Female p.13
COM1 Serial Port Connector 9-pin Connector p.13
VGA VGA Port Connector 15-pin Female p.13
CN2 Line-Out/Line-In/MIC Audio Connector Phone Jack p.13
FDD Floppy Driver Connector 34-pin Block p.14
IDE1 Primary IDE Connector 40-pin Block p.14
IDE2 Secondary IDE Connector 40-pin Block p.14
Headers
Header Name Description Page
COM2 COM2 Serial Port Headers 10-pin Block p.15
TV_OUT
(for V623DMW)
S-Video/RCA Composite TV-out Header 5-pin Block p.15
AUDIO Line-Out/MIC output Header 9-pin Block p.15
USB1/USB2 USB2.0 Port Headers 10-pin Block p.16
HD_LED Hard drive LED connector 3-pin Block p.16
RESET Reset switch lead 2-pin Block p.16
SPEAK Speaker connector 4-pin Block p.16
PWR LED Power LED Headers 2-pin Block p.16
PWR BTN Power Button Headers 2-pin Block p.16
CPUFAN, SYSFAN FAN Speed Headers 3-pin Block p.16
IR IR infrared module Headers 5-pin Block p.17
CDIN CD Audio-In Headers 4-pin Block p.17
OPTICA SPDIF In/Out (Optical In/Out) Headers 9-pin Block p.17
Expansion Sockets
Socket/Slot Name Description Page
ZIF Socket 370 CPU Socket 370-pin FC-PGA CPU Socket p.9
DDR, DDR2
DDR SDRAM Module
Socket
184-pin DDR SDRAM Module
Expansion Socket
p.10
PCI1~4 PCI Slot 32-bit PCI Local Bus Expansion slots p.11
6
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) Keyboard Power On function Enabled/Disabled (3-pin): 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
13
JP1
13
1-2 closed K/B Power ON Disable
(Default)
(2) USB Power On function Enabled/Disabled (3-pin): JP6
When setting Enabled you can using USB Device to power on system.
JP6 2-3 closed USB Power On Enabled
JP6
13
JP6 1-2 closed USB Power On Disabled (Default)
JP6
13
7
(3) CMOS RAM Clear (3-pin): JP5
A battery must be used to retain the motherboard configuration in CMOS RAM short 1-2
pins of JP5 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 JP5 and short pins 2-3 for a few seconds
4. Return JP5 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
JP5
13
JP5
13
1-2 closed Normal (Default)
(4) On board Sound Chip (3-pin): JP7
On Board Sound Chip Setting
2-3 closed Sound Enabled (Default)
JP7
13
JP7
13
1-2 closed Sound Disable
2-3 Install CPU
2-3-1 Glossary
Chipset (core logic) - two or more integrated circuits which control the interfaces between the
system processor, RAM, I/O devises, and adapter cards.
Processor socket - the 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).
8
PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound
cards, network interface cards, and modems; runs at 33MHz.
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
speakers, MIC, game controllers, and MIDI sound devices.
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 Pentium III CPU has 256K or
above, while Celeron CPU will have 128K.
The way to recognize the specification of CPU from the packing Pentium
III 370 pins FC-PGA
On the surface of the CPU as shown on the right picture, under the word of
“PENTIUM III” the code is:
RB 80526 P2 866 256
RB :
FC–PGA packing
P2 :
P2–133MHz front side bus frequency
PY–100MHz front side bus frequency
866 :
CPU internal frequency, where here is
866MHz
256 :
the size of L2 cache, where here is 256K
Celeron FC–PGA
On the surface of the CPU as shown on the right picture, under the word of “Celeron” the
code is:
566/128/66/1.5V
566 :
CPU internal frequency, where here is 566MHz
128 :
the size of L2 cache, where here is 128K
66 :
front side bus frequency, where here is 66MHz
1.5V :
the voltage for the CPU
9
2-3-2 Setting CPU Bus Clock & Memory Clock Jumper
Setting the front side bus frequency and SDRAM frequency
The motherboard uses jumper less function for the front side bus frequency and SDRAM
frequency users don’t need setting any jumper when plug the CPU in motherboard
For experience user looking for over clocking possibility, please refer to sec 2-3-4.
2-3-3 Install CPU
This motherboard provides a ZIF socket 370. 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 Socket 370
Colden Arrow
Pentium
III
Socket 370
Intel
When you put the CPU into the ZIF socket. No forces require to insert of the CPU, then press
the level to locate position slightly without any extra force.
2-3-4 Over clock Running
WARNING!
This section is for experienced motherboard installer only. Over clocking
can result in system instability or even shortening life of the processor.
Users can choose over clock running by BIOS CMOS SETUP UTILITY. When you entered
CMOS SETUP UTILITY, choose “Miscellaneous Control” you will see the screen as below
then.
10
CMOS Setup Utility – Copyright(C) 1984-2003 Award Software
Miscellaneous Control
Item Help
Auto Detect DIMM/PCI Clk Enabled
Spread Spectrum Disabled
** Current Host/PCI Clock is 133/133 MHz **
Host/PCI Clock at Next Boot is 133/33MHz
** Current DRAM Clock is 133MHz **
DRAM Clock at Next Boot is 133MHz
+2.5V Select 2.55V
Menu Level >
↑↓→←
Move Enter:Select Item +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5:Previous Values F6:Optimized Defaults F7:Standard Defaults
WARNING!
The Design of this motherboard follows chipset and CPU vender’s design
guideline. Any attempts to push beyond product specification are not
recommended and you are taking your own risk to damage your system or
important data. Before over clocking, you must make sure your
components are able to tolerate such abnormal setting, especially CPU,
memory, hard disks, and VGA cards.
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 PCS 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
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.
11
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 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.
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
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
Figure 2-4
12
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
√
Onboard VGA
√
Onboard USB
√
Onboard USB 1
√
Onboard USB 2
√
LAN
√
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) : ATXPWR
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