4-6 HOW TO UPDATE BIOS..................................................................................................... 40
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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 N250DAG 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
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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 Edition January 2005
Item Checklist
5
N250DAG motherboard
5
Cable for IDE/Floppy
5
CD for motherboard utilities
□
Cable for USB Port 3/4 (Option)
5
Cable for Serial ATA IDE Port
5
N250DAG User’s Manual
AMD K8 Processor Family
Cooling Solutions
As processor technology pushes to faster speeds and higher performance with increasing operation
clock, thermal management becomes increasingly crucial while building computer systems. Maintaining
the proper computing environment without thermal increasing is the key to reliable, stable, and 24
hours system operation. The overall goal is keeping the processor below its specified maximum case
temperature. Heatsinks induce improved processor heat dissipation through increasing surface area
and concentrated airflow from attached active cooling fans. In addition, interface materials allow
effective transfers of heat from the processor to the heatsink. For optimum heat transfer, AMD
recommends the use of thermal grease and mounting clips to attach the heatsink to the processor.
Please refer to the website below for collection of heatsinks evaluated and recommended for Socket-A
processors by AMD. In addition, this collection is not intended to be a comprehensive listing of all
heatsinks that support Socket-754 processors.
For vendor list of heatsinks and Active cooling fans, please visit:
The N250DAG motherboard is design for use 64bit AMD Athlon64 (K8) Processor in 754
Pin HyperTrnsport Processor with the NVIDIA nForce3 250 serial Chipset delivers a high
performance and professional desktop platform solution. Which utilize the Socket 754 design
and the memory size expandable to 2.0GB.
The motherboard uses the newest nVIDIA nForce3 250 Chipset, supports 800MHz System
Bus in data transfer rate. The motherboard provided 133MHz/166MHz/200MHz Memory
clock frequency, support DDR266/DDR333/DDR400 DDR Module. The motherboard offer
ULTRA
ATA 133
speedier HDD throughout that boosts overall system performance.
The N250DAG integrated VSC8201GbE Giga LAN PHY chip supports 10/100/1000Mbps
data transfer rate full duplex, half duplex operation.
This motherboard also has an integrated 6-channel AC’97 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 N250DAG provided an AGP slot
supports AGP 8X/4X capability and Fast write Transaction.
With USB control as well as capability of expanding to 8x USB2.0 function ports delivering
480Mb/s bandwidth and rich connectivity, this motherboard meet future USB demand also
has built-in hardware monitor function to monitor and protect your computer.
A useful software tool “Magic BIOS” examines the BIOS version automatically with the
correct version available on the web, links the site for users to download the latest version of
BIOS and updates the BIOS. Use “Magic BIOS”, users can download and update BIOS
automatically and completed under the OS easily.
This motherboard provide high performance & meets future specification demand. It is really
wise choice for your computer.
and
Serial ATA RAID 0, RAID 1, RAID 0+1
functions to provide
1
1-2 Specification
Spec Description
Design
Chipset
CPU Socket 754
Memory Socket
Expansion Slot
Integrate IDE and
Serial ATA RAID
Giga LAN
Audio
BIOS
Multi I/O
ATX form factor 4 layers PCB size: 30.4x21.0cm
∗
nVIDIA nForce3 250Gb single Chipset for N250DAG
∗
Support 64bit AMD Athlon64 754-Pin package utilizes Flip-
∗
Chip Pin Grid Array package processor
Support CPU Frequency 800MHz
∗
Support up to 3200+ ~ 4000+ processor
∗
Reserves support for future AMD Athlon64 Sempron 754-pin
∗
processors
184-pin DDR Module socket x 2
∗
Support 2pcs DDR266/DDR33/DDR400 DDR Modules
∗
Expandable to 2.0GB
AGP slot x1 support AGP 2.0 & AGP 3.0 for 4X/8X mode
∗
32-bit PCI slot x5
∗
Two PCI IDE controllers support PCI Bus Mastering, ATA
∗
PIO/DMA and the ULTRA DMA 33/66/100/133 functions that
deliver the data transfer rate up to 133 MB/s; Two Serial ATA
ports provide 150 MB/sec data transfer rate for two Serial ATA
Devices and offer RAID 0, RAID1, RAID 0+1 functions
Integrated VSC 8102GbE Giga LAN PHY chip
∗
Support Fast Ethernet LAN function provide 10/100/1000 Mb/s
∗
data transfer rate
AC’97 Digital Audio controller integrated
∗
6-channel AC’97 Audio CODEC on board
∗
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
∗
USB2.0 port x 4 and headers x 4 (connecting cable option)
∗
Audio connector (Line-in, Line-out, MIC)
∗
2
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:
DRAM:
VGA Card :
Hard Disk Driver:
BIOS:
Windows XP Professional (SERVICE PACK 2)
OS:
3D Mark 2001SE 19240
3D Mark 2003 5709
3D Mark 2005 2421
AQUAMRK3 42733 (5646 / 8815)
PCMark2004
System / CPU / Memory 4271 / 4097 / 3502
Graph / HDD 3900 / 4486
Content Creation Winstone 2004 30.9
Business Winstone 2004 24.9
Winbench 99 V2.0:
Connector
USB1/USB2 USB Port Connector 4-pin Connector P.12
LAN LAN Port Connector RJ-45 Connector P.13
PARALLEL Parallel Port Connector 25-pin Female P.13
CN1 Audio Connector 3 phone jack Connector P.13
COM1/COM2 Serial Port COM1/COM2 Connector 9-pin Connector P.13
FDD Floppy Driver Connector 34-pin Block P.13
IDE1/IDE2 Primary/Secondary IDE Connector 40-pin Block P.14
SATA1/SATA2 Serial ATA IDE Connector 7-pin Connector P.14
6-pin Female P.12
Headers
Header Name Description Page
AUDIO SPEAKER, MIC header 9-pin Block P.15
USB3, USB4USB Port Headers 9-pin Block P.15
SPEAK PC Speaker connector 4-pin Block P.16
PWR LED Power LED 3-pin Block P.16
9-pin Block P.16
(including Power LED/ IDE activity
LED/Reset switch / Power On Button
lead)
FAN Headers 3-pin Block P.16
P.8
Socket
PCI Slot 32-bit PCI Local Bus Expansion slots P.10
5
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) : 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
13
JP5
2-3 closed Clear CMOS
13
JP5
1-2 closed Normal
CMOS RAM Clear Setting
6
(2) Keyboard Power On function Enabled/Disabled: JP1
JP1
1-2 closed KB Power ON Disable
(Default)
1
3
Keyboard/USB Power On Setting
(3) USB Power On function Enabled/Disabled: JP2, JP6
JP2
1-2 closed USB Power ON Disable
(Default)
JP6
1-2 closed USB Power ON Disable
(Default)
1
3
13
USB Power On Setting
2-3 Install CPU
JP1
2-3 closed KB Power ON Enabled
1
3
JP2
2-3 closed USB Power On Enabled
JP6
2-3 closed USB Power On Enabled
1
3
1 3
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.
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.
or 8X (533MHz).
7
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, normal it depend on CPU type.
2-3-2 About AMD Athlon64 754-pin CPU
This motherboard provides a 754-pin surface mount, Zero Insertion Force (ZIF) socket,
referred to as the mPGA754 socket supports AMD Athlon64 processor in the 754 Pin package
utilizes Flip-Chip Pin Grid Array 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.
Colden Arrow
Socket 754
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.
8
2-4 Install Memory
This motherboard provides two 184-pin DDR DUAL INLINE MEMORY MODULES
(DIMM) sites for DDR memory expansion available from minimum memory size of 64MB to
maximum memory size of 2.0GB DDR SDRAM.
Valid Memory Configurations
Bank 184-pin DDR DIMM PCSTotal Memory
Bank 0, 1 (DIMM1)DDR266/DDR333/DDR400 DDR DRAM
X164MB∼1.0GB
Module
Bank 2, 3 (DIMM) DDR266/DDR333/DDR400 DDR DRAM
X164MB∼1.0GB
Module
Total System Memory (Max. 2.0GB) X264MB∼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 DDR SDRAM module looks like.
DIMM1 (BANK0+BANK1)
DIMM2 (BANK2+BANK3)
Figure 2-4
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 200MHz, use only DDR400- compliant
DDR Modules. When this motherboard operate at 200Mhz, most system will
not even boot if non-compliant modules are used because of the strict
timing issues, if your DDR Modules are not DDR400-compliant, set the
SDRAM clock to 133MHz to ensure system stability.
2-5 Expansion Cards
9
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
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