Albatron K8X890 Series User manual

KM400A Series
Copyright
All rights are reserved. No part of this publication may be reproduced, transmitted, transcribed,
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prior written permission of the company. Brands and product names are trademarks or registered
trademarks of their respective companies.
The vendor makes no representations or warranties with respect to the contents herein and especially
disclaim any implied warranties of merchantability or fitness for any purpose. Further the vendor
reserves the right to revise this publication and to make changes to the contents herein without
obligation to notify any party beforehand. Duplication of this publication, in part or in whole, is not
allowed without first obtaining the vendor’s approval in writing.
Trademark
All the trademarks or brands in this document are registered by their respective owner.
Disclaimer
We make no warranty of any kind with regard to the content of this user’s manual. The content is
subject to change without notice and we will not be responsible for any mistakes found in this user’s
manual. All the brand and product names are trademarks of their respective companies.
FCC Compliance Statement
This equipment has been tested and found to comply with the limits of a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. Operation of this equipment in a residential area
is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense. However, there is no guarantee that interference will not occur in a
particular installation.
CE Mark
The device is in accordance with 89/336 ECC-ENC Directive.
120410073M1N

You have to know !!!
 The images and pictures in this manual are for reference only and
may vary slightly from actual product installation depending on
specific hardware models, third party components and software
versions.
 Unplug your computer when installing components and configuring
switches and pins.
 This mainboard contains very delicate IC chips. Use a grounded wrist
strap when working with the system.
 Do not touch the IC chips, leads, connectors or other components.
 Unplug the AC power when you install or remove any device on the
mainboard.
Package Contents
 KM400A Series mainboard
 IDE ATA100 Cable
 FDC Cable
 Game Port/ COM Port Bracket (optional)
 USB Bracket (optional)
 1394 Bracket (optional)
 SATA Power cord/ SATA Cable (optional)
 SPDIF & Front Audio Dual-Function Bracket (optional)
 Installation and Setup Driver CD
 KM400A Series User Manual
Symbols
Attention …
Following the procedures …
Troubleshooting …
Please refer to …

KM400A Series
VIA® KM400A & VT8237
Supports Socket 462 AMD®Athlon XPTM/ AthlonTM /DuronTM /BartonTM Processor
User Manual
Dimensions (Micro ATX form-factor):
 244 mm x 244 mm (WxL)
Operating System:
 Supports Windows®98/ 2000/ ME/ XP

Contents
CHAPTER 1. GETTING STARTED ............................................................1
INTRODUCTION.......................................................................................................... 1
SPECIFICATION .......................................................................................................... 2
QUICK CONTENT TABLE ........................................................................................... 5
CONFIGURATION ....................................................................................................... 6
Layout of KM400A PRO-1394 ............................................................................ 6
Layout of KM400A PRO...................................................................................... 7
Layout of KM400A .............................................................................................. 8
HARDWARE INSTALLATION ...................................................................................... 9
CPU Processor Installation ...................................................................................9
Memory Installation ........................................................................................... 10
Back Panel Configuration................................................................................... 12
Front Panel Indicator: SW/LED、PWRLED、SPEAKER ............................... 14
Connectors.......................................................................................................... 15
Headers & Jumpers & Switch............................................................................. 16
Audio Connectors ............................................................................................... 21
Slots .................................................................................................................... 22
Power Supply Attachments................................................................................. 22
CHAPTER 2. BIOS SETUP..........................................................................23
INTRODUCTION........................................................................................................ 23
MAIN MENU ............................................................................................................ 25
ADVANCED BIOS FEATURES.................................................................................. 27
INTEGRATED PERIPHERALS..................................................................................... 34
POWER MANAGEMENT............................................................................................ 38
HARDWARE MONITOR ............................................................................................ 43
LOAD DEFAULTS ..................................................................................................... 44
EXIT MENU.............................................................................................................. 45
CHAPTER 3: SOFTWARE SETUP............................................................46
SOFTWARE LIST ...................................................................................................... 46
SOFTWARE INSTALLATION...................................................................................... 46
CHAPTER 4: TROUBLESHOOTING .......................................................49
APPENDIX I: SUPER 5.1 CHANNEL SETUP ............................................................... 52
APPENDIX II: SATA RAID 0/1 SETUP.................................................................... 54

KM400A Series
1
Chapter 1. Getting Started
Introduction
Congratulations on choosing the KM400A series mainboard! The series include KM400A PRO-1394,
KM400A PRO, and KM400A. These are based on the VIA®KM400A Northbridge and the VIA®
VT8237 Southbridge chipset. It supports AMD®AthlonTMXP/ AthlonTM/ DuronTM/ BartonTM
Processors with a FSB (Front Side Bus) frequency of 200/ 266/ 333/ 400 MHz.
The KM400A Series provides 2 DIMM sockets using 184 pin DDR SDRAM with a total capacity of
up to 2 GB. You can install unbuffered & non-ECC DDR400/333/266/200(PC3200/2700/ 2100/1600)
SDRAM. They support 64 bit single channel memory bus with a total capacity of up to 2 GB.
The KM400A Series provides one 8X/4X AGP Slot that use 1.5V AGP cards only.
The KM400A Series include built in IDE facilities that support Ultra ATA 33/ 66/ 100/ 133 Ultra
6-0/ DMA 2-0 and PIO 4-0 modes. The KM400A Series also include built in SATA facilities that
support Serial ATA 150 and support SATA RAID 0 or 1.
The KM400A Series also comes with an AC’97 Sound Codec (VT1616) which supports high quality
6 channel audio (super 5.1 Channel Audio Effect). It also supports Sony/ Philips Digital Interface
(S/PDIF).
The KM400A Series also comes with 8 USB 2.0 ports and the KM400A PRO-1394 comes with two
IEEE 1394 ports (optional).
The KM400A Sereis also include CPU Over Temperature Protection (OTP). When CPU temperature
rises above normal values, the system will automatically shut down to protect your system from
overheating. But the OTP is only functional when using an Athlon XPTM or BartonTM CPU.
The KM400A Series include an infrared header. The KM400A PRO-1394/ KM400A PRO also
provides a back panel LAN port. More information in the section of Back Panel Configuration.
The company’s 3 Year Limited Warranty for this product covers both labor costs and replacement
parts during the 1st year. Only labor costs are covered during the 2nd and 3rd years (replacement
parts will be charged during the 2nd and 3rd years).
All of the information in this manual only for reference. This specification is subject to change
without notice.

KM400A Series
2
Specification
CPU:
 Supports Socket 462 AMD®AthlonTMXP/ AthlonTM/ DuronTM/ BartonTM processors
Speed:
 200/ 266/ 333/ 400 MHz Front Side Bus frequency
 33MHz, 32 bit PCI interface (PCI 2.2 compliant)
 66MHz AGP 3.0/ 2.0 compliant interface that supports 8X/ 4X data transfer modes (1.5V)
Chipset:
 Northbridge Chip – VIA®KM400A
 Southbridge Chip– VIA®VT8237
 I/O Controller – Winbond W83697HF
 AC’97 Codec – VIA®VT1616
 Ethernet LAN Chip – VT6103 (for KM400A PRO-1394/ KM400A PRO)
 1394 Controller – VT6307 (only for KM400A PRO-1394)
DRAM Memory:
 Supports DDR400 (PC3200)/ 333 (PC2700)/ 266 (PC2100)/ 200(PC1600) DDR SDRAM
 Supports 64 MB/128 MB/256 MB/512 MB/1 GB unbuffered & non-ECC DIMM modules
 Supports memory modules with a total capacity of 2 GB
 Supports x8, x16 DRAMs DDR DIMMs (more details in memory installation section)
Green Functionality:
 Supports Phoenix-Award BIOS ™ power management functionality
 Wakes from power saving sleep mode with any keyboard or mouse activity
Shadow RAM:
 This mainboard is equipped with a memory controller providing shadow RAM and
support for ROM BIOS
BUS Slots:
 One AGP slot (AGP3.0/ 2.0,1.5V)
 Three 32-bit PCI bus slots
Flash Memory:
 Supports flash memory functionality
 Supports ESCD functionality

KM400A Series
3
Hardware Monitor Function:
 Monitors CPU and Auxiliary fan Speeds
 Monitors CPU and system temperature
 Monitors System Voltage
Infrared:
 Supports IrDA Version 1.0 SIR Protocol with a maximum baud rate of up to 115.2 Kbps
 Supports SHARP ASK-IR Protocol with maximum baud rate of up to 57600 bps
Universal Serial Bus:
 Supports USB 2.0 Enhanced Host Controller Interface (EHCI) and dual USB 1.1 Open
Host Controller Interface (OHC1)
 Supports up to 8 USB ports for USB interface devices
IEEE 1394 Serial Bus: (only for KM400A PRO-1394)
 Supports two IEEE 1394 ports for 1394 interface devices
 Supports 400/ 200/ 100 Mbps serial date rates
I/O facilities:
 One multi-mode Parallel Port capable of supporting the following specifications:
1. Standard & Bi-direction Parallel Port
2. Enhanced Parallel Port (EPP)
3. Extended Capabilities Port (ECP)
 Supports two serial ports, 16550 UART (one on back panel and one on front panel)
 Support 1 VGA port
 Supports Infrared Data Transmission using IrDA
 Supports PS/2 mouse and PS/2 keyboard
 Supports 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB floppy disk drives
 Game port compatible
AC’97 Sound Codec Onboard:
 AC-LINK protocol compliance
 Compliant with AC’97 2.1 specification
 6-channel playback capability (Super 5.1 Channel Audio Effect)
 Supports Sony/ Philips Digital Interface (S/PDIF) for output only

KM400A Series
4
Onboard Video Graphic Acceleration:
 MPEG-2/1 Video Decoder
 2D Hardware Acceleration
 3D Hardware Acceleration
 Micorsoft® Directx7.0 and 8.0 compatible
 OpenGL dreiver available
LAN PHY Chip:
 Supports 100/ 10 Mb/ sec Ethernet
IDE Facilities:
 Supports Ultra ATA 133/ 100/ 66/ 33 Ultra 6-0/ DMA 2-0 and PIO 4-0 modes
 Supports IDE interface with CD-ROM
 Supports high capacity hard disk drives
 Supports installation of up to 4 drives, with separate IDE connections for Primary and
Secondary connectors
Serial ATA Controller:
 Compatible with SATA Spec 1.0
 Supports Serial ATA 150 MB/sec transfers
 Supports RAID 0/ RAID 1 software with this controller
BIOS:
 Phoenix-Award™ BIOS
 Supports APM1.2
 Supports ACPI power management
Power Management:
 Power On Suspend (POS) or ACPI S1 support
 Suspend to DRAM (STR) or ACPI S3 support
 Suspend to Disk (STD) or ACPI S4/ S5 support
 Supports C0, C1, and C2 states
 ACPI 2.0 compliant
Hyper Transport Interface:
 Supports up to 800 MBps transfer rates
 Supports operates at 200 MHz dual edge clock mode
Sophisticated OTP (Over Temperature Protection):
 Special design for CPU Over Temperature Protection
 OTP is functional when using an Athlon XPTM or BartonTM CPU

KM400A Series
5
Quick Content Table
Function Content Location Page
CPU Socket A (Socket 462) U3 9
DDR DIMM Sockets DDR DIMM 1、2 10
ATX Power Connector AT X _ P W R 、ATX_12V 22
IDE Connectors、SATA Connectors IDE1、IDE2、SATA1、SATA2 15
FDC Connector FDC 15
AGP Slot AGP 22
PCI Slots PCI 1、2、3 22
CPU FAN、Chassis FAN、
Auxiliary FAN CPUFAN、CHASFAN、AUXFAN 10
Front Panel Indicator SW/LED、PWRLED、SPEAKER 14
Infrared Connector IrDA 17
Front Serial interface Header COM2 18
Front USB Headers USB1、USB2 16
IEEE 1394 Headers (*optional) 1394 CN1/ 1394 CN2 16
CPU Clock Select Jumper JP5、JP6 19
Over Temperature Protection Jumper JP4 19
Clear CMOS Jumper JP1 20
Case Open Warning Function Jumper CASE OPEN 17
Sony/Philips Digital Interface Conn. SPDIF 21
CD-ROM Audio IN Header CD-IN 21
Front Panel Audio Header FRONT AUDIO 21
PC99 Color Codec Back Panel Back Panel Connector 12
Game Port Connector GAME PORT 18

KM400A Series
6
Configuration
Layout of KM400A PRO-1394
PRT/COM/VGA
KB/MS
AGP
PCI1
PCI2
PCI3
DIMM1 DIMM2
1
COM2
9
AUXFAN
USB
U15
BIOS
ROM
U19
SPDIF
1
Audio
Codec
CD-IN
1
CASE OPEN
1
CPUFAN
U3
Socket 462
ATX_PWR
FRONT AUDIO
19
210
19
210
IrDA
15
26
1394CN1
19
210
1394CN2
2
1
19
210
19
210
ATX_12V
USB/LAN
1
USB2
IDE2
U14
JP4
JP6
JP5
IDE1
FDC
SPEAKER
1
CHASFAN
9
10
SATA1
SATA2
PWRLED
1
SW/LED
19
210
JP1
BAT1
1
USB1
9
10
1
2
VT6307
1
2
Winbond
W83697HF
SOUND1
GAMEPORT
1 2
U16
U18
U11
1
VT6103

KM400A Series
7
Layout of KM400A PRO
PRT/COM/VGA
KB/MS
AGP
PCI1
PCI2
PCI3
DIMM1 DIMM2
1
COM2
19
2
AUXFAN
USB
U15
BIOS
ROM
U19
SPDIF
1
Audio
Codec
CD-IN
1
CASE OPEN
1
CPUFAN
U3
Socket 462
ATX_PWR
FRONT AUDIO
19
210
IrDA
15
262
1
A
TX_12V
Winbond
W83697HF
SOUND1
USB
GAMEPORT
1 2
1
USB2
IDE2
U14
JP4
JP6
JP5
IDE1
FDC
SPEAKER
1
CHASFAN
9
10
SATA1
SATA2
PWRLED
1
SW/LED
19
210
JP1
BAT1
1
USB1
9
10
1
2
U16
1
VT6103
U11

KM400A Series
8
Layout of KM400A
PRT/COM/VGA
KB/MS
AGP
PCI1
PCI2
PCI3
DIMM1 DIMM2
1
COM2
19
2
AUXFAN
USB
U15
BIOS
ROM
U19
SPDIF
1
Audio
Codec
CD-IN
1
CASE OPEN
1
CPUFAN
U3
Socket 462
ATX_PWR
FRONT AUDIO
19
210
IrDA
15
262
1
A
TX_12V
Winbond
W83697HF
SOUND1
USB
GAMEPORT
1 2
1
USB2
IDE2
U14
JP4
JP6
JP5
IDE1
FDC
SPEAKER
1
CHASFAN
9
10
SATA1
SATA2
PWRLED
1
SW/LED
19
210
JP1
BAT1
1
USB1
9
10
1
2
U16
1

KM400A Series
9
Hardware Installation
This section will assist you in quickly installing your system hardware. Wear a wrist ground strap
before handling components. Electrostatic discharge may damage your system components.
CPU Processor Installation
This mainboard supports AMD®processors using a Socket A. Before building your system, we
suggest you visit the AMD®website and review the processor installation procedures.
http://www.amd.com
CPU Socket A Configuration Steps:
1. Locate the CPU socket on your mainboard and nudge the lever away from the socket. Then lift
the lever to a 90-degree angle.
2. On the socket, locate the corner that has the pin-1 receptor. This corner will be near to the end of
the lever. Match the corner on the CPU with the pin-1 receptor on the socket and lower the CPU
onto the socket. The bottom of the CPU should be flush with the face of the socket.
3. Lower the lever until it snaps back into position. This will lock down the CPU.
4. Smear thermal grease on top of the CPU. Lower the CPU fan onto the CPU and use the clasps on
the fan to attach it to the socket. Finally, extend the power cable from the fan and insert it onto the
CPUFAN adapter.
Attention: Before starting the system
Please check the installation completely before starting the
system. Verify that the heatsink is properly installed and make
sure the CPU fan is working. Overheating can damage the CPU
and other sensitive com
p
onents.
Pin-1
receptor
Corner

KM400A Series
10
FAN Headers
Three power headers are available for cooling fans, which play an important role in maintaining the
ambient temperature in your system.
Memory Installation
The mainboard contains 2 sockets, which use 184 pin DDR SDRAM with a total memory capacity of
up to 2 GB. You can install unbuffered & non-ECC DDR400/ 333/ 266/ 200 (PC3200/ 2700/ 2100/
1600) DDR SDRAM.
The KM400A Series supports 64 bit channels memory bus with a total memory capacity of up to 2
GB.
Attention
This system has a BIOS configuration feature that issues a warning
(during POST) when the CPU fan is not plugged in or is no
t
functioning. In order to make use of this feature. You must make sure
that the CPU power cable is attached specifically to the “CPUFAN”
header. The BIOS configuration option is described in the “Hardware
Monitor” section of the BIOS Setup Utility Chapter.
DIMM1
DIMM2
1
19
2
BIOS
ROM
1
Audio
Codec
11
U3
Socket 462
19
210
19 210
15 26
19 210 2
1
19 210 19 210
VIA KM400A
Winbond
W836 97HF
1
2
1
1
9
10
1
19 210
BAT1
1
9
10
1 2
VT63 07
DIMM1
DIMM2

KM400A Series
11
Before Overclocking
Please make sure your system components are capable o
f
overclocking. If you are not familiar with the overclocking, we
strongly recommend that you to set the clock to the defaul
t
settin
g
s.
RAM Module Installation:
1. Pull the white plastic tabs on each side of the slot away from the slot.
2. Match the notch on the button of the RAM module with the corresponding pattern in the DIMM
slot. This ensures that the module is inserted properly.
3. Lower the RAM module into the DIMM Slot and press firmly using both thumbs until the module
snaps into place.
4. Repeat steps 1、2 and 3 for the remaining RAM modules.
* The pictures above are for reference only and may vary slightly for your mainboard.

KM400A Series
12
Back Panel Configuration
PS/2 Mouse & PS/2 Keyboard Connectors: KB/MS
This mainboard provides a standard PS/2 mouse connector and PS/2 Keyboard connector. The pin
assignments are described below:
USB & LAN Connectors: USB/(LAN=>optional)
There are 4 USB connectors on the back panel. These USB connectors are used to attach to USB
devices such as: keyboards, mice and other USB devices. You can plug the USB devices directly into
this connector. The KM400A PRO-1394/ KM400A PRO also provides a LAN port. You can plug
LAN devices directly into this connector.
Pin Assignment Pin Assignment
1 Data 4 +5 V (fused)
2 No connect 5 Clock
3 Ground 6 No connect
Pin Assignment Pin Assignment
1 TX+ 5 NC
2 TX- 6 RX-
3 RX+ 7 NC
4 NC 8 NC
Pin Assignment Pin Assignment
1/5 +5 V (fused) 3/7 USBP0+/P1+
2/6 USBP0-/P1- 4/8 Ground
PS/2 Mouse
PS/2 Keyboard
LAN
USB
(Optional)
PS/2
Mouse
PS/2
Keyboard
COM1
USB
USB
Mic In
Line In
S
p
eaker Out
VGA
(O
p
tional)
LAN
Port
(Print Port)
Parallel Port

KM400A Series
13
Serial and Parallel Interface Ports
The mainboard comes equipped with one serial port, one parallel port and one VGA port on the back
panel. These interface ports will be explained below.
Parallel Interface Port: PRT
The parallel port on your system has a 25-pin, DB25 connector and is used to interface with parallel
printers and other devices using a parallel interface.
The Serial Interface: COM1
The serial interface port is sometimes referred to as an RS-232 port or an asynchronous
communication port. Mice, modems and other peripheral devices can be connected to a serial port.
Video Graphics Array Conn.: VGA
The KM400A Series has built in video facilities. Your monitor attaches directly to the VGA
connector on this mainboard.
Audio Port Connectors
Speaker Out is used to connect to speakers or
headphones. If the Super 5.1 driver is enabled the
Speaker Out becomes the Front Speaker.
Line In can be connected to an external CD player,
Tape player or other audio devices for audio input.
If the Super 5.1 driver is enabled Line In becomes
the Rear Speaker.
Mic In is used to connect to a microphone. If the
Super 5.1 driver is enabled the Mic In becomes the
Subwoofer/ Center out.
This mainboard supports Super 5.1 Channel Audio effects which turns
your standard Speaker Out, Lin In, Mic In audio connectors into a 6
channel audio system. See Appendix I for more information.
Printer Port
COM1 VGA
Speaker-out
(Front Speaker out)
Line-in
(Rear Speaker out)
Mic-i
n
(Subwoofer/Center out)

KM400A Series
14
Front Panel Indicator: SW/LED
、
PWRLED
、
SPEAKER
HD LED (Hard Drive LED Connector)
This connector can be attached to an LED on the front panel of a computer case. The LED will
flicker during disk activity. This disk activity only applies to those IDE drives directly attached to the
system board.
RST (Reset Button)
This connector can be attached to a momentary SPST switch. This switch is normally left open.
When closed it will cause the mainboard to reset and run the POST (Power On Self Test).
PWR-LED (2-Pin Power LED Connector)
This connector can be attached to an LED on the front panel of a computer case. The LED will
illuminate while the computer is powered on.
PWR ON (Power Button)
This connector can be attached to a front panel power switch. The switch must pull the Power Button
pin to ground for at least 50 ms to signal the power supply to switch on or off (the time required is
due to internal debounce circuitry on the system board). At least two seconds must pass before the
power supply will recognize another on/off signal.
PWRLED (3-Pin Power LED )
If there is a 3-pin power LED cable on the front panel of a computer case. You can attach it to the
3-pin power LED connector.
SPEAKER (Speaker Header)
A front panel speaker can be connected to this connector. When you boot your computer, the speaker
sounds a short “beep”. If there is something wrong during the Power On Self-Test, the speaker
sounds “irregular beep” to warning you.
1
19 2
BIOS
ROM
1
Audio
Codec
11
Socke t 462
19 210
19
210
15 26
19
210 2
1
19 210 19 210
VI A KM400A
Winbond
W836 97H F
1
2
1
SPEAKER
1
9
10
PWRL ED
1
SW
/
LED
19 210
BAT1
1
9
10
1 2
VT6307
PC_BEEP
+5V
1
4
SPEAKER
NC
Ground
+
-
1
2
3
PWRLED
1
HD LED (+) Power LED (+)
Power LED (-)
Power Button (+)
Power Button (-)
NC
HD LED (-)
Reset Control (-)
Reset Control (+)
NC
9
2
10
SW/LED
Hard Driver
LED
Power
LED
Power-on
Button
Reset
Button

KM400A Series
15
Connectors
Floppy Disk Connector: FDC
This mainboard provides a standard floppy disk connector (FDC) that supports 360K, 720K, 1.2M,
1.44M and 2.88M floppy diskettes. This connector supports the floppy drive ribbon cables provided
in the packaging.
Hard Disk Connectors: IDE1-2、SATA1-2
This mainboard has a 32-bit Enhanced PCI IDE Controller that supports Ultra 6-0/ DMA 2-0 and
PIO 4-0 modes, Ultra ATA 133/ 100/ 66/ 33. It has two IDE connectors, IDE1 (primary) and IDE2
(secondary). The KM400A Series also has a Serial ATA controller and provides two serial ATA
connectors.
IDE1 (Primary IDE Connector)
You can connect up to two hard drives to IDE1. If you attach two drives, you must use a ribbon cable
with three connectors. You must also configure one drive as the master and one drive as the slave,
using the jumpers located on each drive.
IDE2 (Secondary IDE Connector)
The IDE2 controller can also support a Master and a Slave drive. The configuration is similar to
IDE1. The second drive on this controller must be set to slave mode.
SATA1/ SATA2
The SATA connectors support transfer rate to 150 MB/s and SATA RAID 0 or 1 mode. The
connectors only can connect one serial ATA hard disk device each. (for more detail pleas refer to the
Appendix II.)
1
19 2
BIOS
ROM
1
Audio
Codec
11
Socket 462
19
210
19 210
15 26
19 210 2
1
19 210 19 210
VIA KM400A
Win bo nd
W83697HF
1
2
1
IDE2
IDE1
FDC
1
9
10
1
19 210
BAT1
1
9
10
1 2
VT6307
IDE2
IDE1
FDC
SATA1
SATA2

KM400A Series
16
Headers & Jumpers & Switch
Front USB Headers: USB1/ USB2
You can connect the USB Bracket to the USB1/ USB2 header. There will be USB ports on the USB
Bracket which means you can connect USB device to the USB port. The mainboard supports up to 8
USB devices including 4 on the back panel.
USB Bracket (optional)
You can connect the USB bracket to the USB1/ USB2 header.
* If you are using USB 2.0 devices with Windows®XP or Windows®2000, you will need to install
the USB 2.0 driver from the Microsoft®website.
IEEE 1394 Headers: 1394 CN1/ 1394 CN2
The IEEE 1394 high-speed serial bus provides enhanced PC connectivity for consumer electronics
audio/video (A/V) appliances, storage peripherals, other PCs, and portable devices. The KM400A
PRO supports up to two IEEE 1394 devices. You can connect the IEEE 1394 bracket (optional) to
the 1394 CN1/ 1394 CN2 header.
1
19 2
BIOS
ROM
1
A
udio
Codec
11
Sock et 462
19
210
19
210
15 26
19
210 2
1
19 210 19 210
VIA
KM400A
Winbond
W83697HF
GAMEPORT
1
2
1
USB2
1
9
10
1
19 210
B
A
T1
1
USB1
9
10
1 2
VT6307
USB1/2
5VSB5VSB
DATA_B-DATA_A-
DATA_B+DATA_A+
GroundGround
NCNC
1
9
2
10
1
19 2
BIOS
ROM
1
A
udio
Codec
11
Socket 462
19
210
19
210
15 26
1394CN 1
19
210
1394CN 2
2 1
19 210 19 210
VIA
KM400A
Winbond
W836 97H F
1
2
1
1
9
10
1
19 210
B
A
T1
1
9
10
1 2
VT6307
1394CN1/2
TPAMTPAP
GroundGround
TPBMTPBP
Chasis GroundNC
NCPWR
1
9
2
10