Albatron KM400T-8X Pro User manual

KM400T-8X Series
Copyright
All rights are reserved. No part of this publication may be reproduced, transmitted, transcribed,
stored in a retrieval system or translated into any language or computer language, in any form or by
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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.
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.
120410050M2N

KM400T-8X Series
VIA® VT8377 (KT400) & VT8235
Supports Socket 462 AMD®Athlon XPTM/ AthlonTM /DuronTM /BartonTM Processor
USER Manual
Package Contents:
 IDE Cable
 FDC Cable
 USB Bracket (optional)
 Installation and Setup Driver CD
 KM400T-8X Series User Manual
Dimensions (Micro ATX form-factor):
 200 mm x 243 mm (WxL)
Operating System:
 Supports most popular operating systems: Windows®9X/ME/2000/XP etc.

Contents
CHAPTER 1. GETTING STARTED .................................................................................... 1
INTRODUCTION....................................................................................................................... 1
SPECIFICATION ....................................................................................................................... 2
QUICK CONTENT TABLE......................................................................................................... 5
CONFIGURATION .................................................................................................................... 6
HARDWARE INSTALLATION .................................................................................................... 8
CHAPTER 2. BIOS SETUP ................................................................................................. 20
INTRODUCTION..................................................................................................................... 20
MAIN MENU ......................................................................................................................... 22
ADVANCED BIOS FEATURES ............................................................................................... 24
INTEGRATED PERIPHERALS .................................................................................................. 32
POWER MANAGEMENT ......................................................................................................... 36
HARDWARE MONITOR.......................................................................................................... 41
LOAD DEFAULTS .................................................................................................................. 42
EXIT MENU .......................................................................................................................... 43
CHAPTER 3: SOFTWARE SETUP.................................................................................... 44
SOFTWARE LIST ................................................................................................................... 44
SOFTWARE INSTALLATION ................................................................................................... 44
CHAPTER 4: TROUBLESHOOTING ............................................................................... 46
APPENDIX I: SUPER 5.1 CHANNEL SETUP ............................................................................. 49
APPENDIX II: DIGITAL CD AUDIO SETUP............................................................................. 51

KM400T-8X Series
1
Chapter 1. Getting Started
Introduction
Congratulations on choosing the KM400T-8X Series mainboard! The KM400T-8X series includes
the KM400T-8X PRO and KM400T-8X. These are based on VT8377 and VT8235 chipsets. It also
supports AMD®Athlon XPTM/ AthlonTM/ DuronTM/ BartonTM Processors with a FSB (Front Side Bus)
frequency of 200/ 266/ 333 MHz.
The KM400T-8X Series provide 2 sockets using 184 pin DDR SDRAM with a total capacity of up to
2GB. You can install DDR333/ 266/ 200 (PC2700/ 2100/ 1600) SDRAM. This mainboard is capable
of DDR400 without overclocking, simply by using DDR400 SDRAM and making the appropriate
adjustments to the BIOS configuration. (For more details please refer the Frequency / Voltage
Control section.)
The KM400T-8X Series provide one AGP Slot for 2X/ 4X/ 8X (1.5V only) AGP cards.
The KM400T-8X Series include built in IDE facilities that support Ultra DMA 33/66/100/133. The
KM400T-8X Series also comes with an Audio Codec (VIA VT1616) which supports high quality 6
channel audio (Super 5.1 Channel Audio Effect).
The KM400T-8X Series 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 CPU.
The KM400T-8X Series also comes with six USB 2.0 ports.
The KM400T-8X PRO also comes with a LAN Chip (VIA VT6103) which supports a back panel
LAN port.
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.

KM400T-8X Series
2
Specification
CPU:
 Supports Socket 462 (Socket A)
 Supports AMD®Athlon XPTM, AthlonTM, DuronTM, BartonTM processors
Speed:
 200/ 266/ 333 MHz Front Side Bus frequency
 33 MHz, 32 bit PCI interface (PCI 2.2 compliant)
 66 MHz AGP 2.0 compliant interface that supports 2X/ 4X data transfer modes
 66 MHz AGP 3.0 compliant interface that supports 8X data transfer modes
Chipset:
 Northbridge Chip – VIA VT8377 (KT400)
 Southbridge Chip – VIA VT8235
 I/O Controller – Winbond Super I/O W83697HF
 Audio Codec – VIA VT1616
 LAN Chip – VIA VT6103
DRAM Memory:
 Supports DDR333 (PC2700)/ DDR266 (PC2100)/ DDR200 (PC1600) SDRAM
 Supports 64 MB/ 128 MB/ 256 MB/ 512 MB/ 1 GB unbuffered/ registered non-ECC
DIMM modules
 Supports up to two double-sided memory modules with a total capacity of 2 GB
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

KM400T-8X Series
3
BUS Slots:
 Provides one AGP slot (1.5V only)
 Provides three PCI bus slots
Flash Memory:
 Supports flash memory functionality
 Supports ESCD functionality
Hardware Monitor Function:
 Monitors CPU Fan/ Chassis Fan Speed
 Monitors CPU & system Temperature
 Monitors System Voltage
Audio 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
LAN Controller on board: (only for KM400T-8X PRO)
 10/ 100 MHz full and half duplex operation
 Independent 2K byte FIFOs for receive and transmit
 Magic packet and wake-on-address filtering
 Software controllable power down
IDE Facilities:
 Supports Ultra ATA 33, Ultra ATA 66, Ultra ATA 100, Ultra ATA 133
 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

KM400T-8X Series
4
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
 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
 MIDI compatible
 Game port compatible
Universal Serial Bus:
 Supports six USB 1.1/2.0 ports for USB interface devices
BIOS:
 Phoenix-Award™ BIOS
 Supports APM1.2
 Supports USB Legacy function
 Supports ACPI power management
Sophisticated OTP (Over Temperature Protection):
 Special design for CPU Over Temperature Protection.
 OTP is functional when using an Athlon XPTM CPU.
Watch Dog Timer:
 The mainboard contains a special feature called the “Watch Dog Timer” which is used to
detect when the system is unable to handle over-clocking configurations during POST
stage. Once detected the system will reset the configurations and reboot the system after
five seconds. On most systems you would need to remove the cover of your system and
re-jumper the clear CMOS switches on the mainboard when your system encounters
over-clocking problems. With the “Watch Dog Timer”, overclocking settings will be
automatically cleared and reset.

KM400T-8X Series
5
Quick Content Table
Function Content Location Page
CPU Socket 462 U3 8
DDR DIMM Sockets DIMM 1、2 10
ATX Power Connector ATX_ PWR 19
IDE Connectors IDE1/IDE2 14
FDC Connector FDC 14
AGP Slot AGP 19
PCI Slots PCI 1、2、3 19
CPU FAN、Chassis FAN、
Auxiliary FAN CPUFAN、CHASFAN、AUXFAN 9
Front Panel Indicator SW/LED、PWRLED 13
Speaker Connector SPEAKER 14
Front USB Headers USB2、USB3 15
Over Temperature Protection
Function JP4 15
Clear CMOS Jumper JP1 16
CPU Clock select Jumper JP5、JP6 16
CPU Ratio select * SW1A*、JP9* 17
Case Open Warning Header CASE OPEN 17
Sony/Philips Digital Interface
Connector S/PDIF 18
Front Panel Audio Header FRONT AUDIO 18
PC99 Color Codec Back Panel Back Panel Connector 11
* means optional

KM400T-8X Series
6
Configuration
Layout of KM400T-8X PRO
V
IA
V
T8377
USB2
SPDIF
Winbond
IO
W83697HF
U3
Socket 462
U6
CPUFAN
BAT1
FDC
ATX_PWR
A
GP
PCI1
PCI2
PCI3
DIMM2 IDE1 IDE2
DIMM1
V
IA
V
T8235
USB3
VIA
VT6103
1
2
2
1
1
1
BIOS
U17
CHASFAN
SW/LED
PWRLED
SPEAKER
1
1129
10
FRONT
AUDIO
1
99
2
10 10
AUXFAN
1
Codec
JP1
U13
JP4
JP5
JP9
SW1A
JP6
CASE
OPEN
1
1
1
1
1
1
PRT/COM
KB/MS
USB/LAN
SOUND
+1
2
3
4
-

KM400T-8X Series
7
Layout of KM400T-8X
V
IA
V
T8377
USB2
Winbond
IO
W83697HF
U3
Socket 462
U6
CPUFAN
BAT1
FDC
ATX_PWR
A
GP
PCI1
PCI2
PCI3
DIMM2 IDE1 IDE2
DIMM1
V
IA
V
T8235
USB3
1
2
2
1
1
BIOS
U17
CHASFAN
SW/LED
PWRLED
SPEAKER
1
1129
10
99
10 10
AUXFAN
1
SPDIF
1
FRONT
AUDIO
1
2
Codec
JP1
U13
JP4
JP5
JP9
SW1A
JP6
CASE
OPEN
1
1
1
1
1
1
PRT/COM
KB/MS
USB
SOUND
+1
2
3
4
-

KM400T-8X Series
8
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®Athlon XPTM/ AthlonTM/ DuronTM/ BartonTM processors using a
Socket A (Socket 462 Pin package). 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.
Pin-1
Receptor
Corner
Attention
Overheating may damage the CPU and other sensitive components.
Please check the installation completely before starting the system.
Make sure the heatsink and the CPU fan are properly installed.

KM400T-8X Series
9
FAN Headers
Three power headers are available for cooling fans, which play an important role in maintaining the
ambient temperature in your system.
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.
V
IA
V
T83 77
Winbond
IO
W83697 HF
Socket 462
V
IA
VT8235
1
2
2
1
BIO S
1
129
10
99
10 10
1
1
1
1
1
1
VI A
VT6103
1
1
2
Codec
+1
2
3
4
-
CPUFAN
AUXFAN
CAHSFAN
1
1
1
Sense
NC
Sense
Ground
Ground
Ground
+12V
+12V
+12V
1
1
1

KM400T-8X Series
10
Memory Installation
The KM400T-8X Series contain 2 sockets, which use 184- pin DDR SDRAM with a total memory
capacity of up to 2 GB. You can install unbuffered/ registered non-ECC DDR333/ 266/ 200
(PC2700/ 2100/ 1600) SDRAM.
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.
VIA
VT8377
Wi nb o n d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T8235
1 22
1
BIO S
1
129
10
99
10 10
1
1
1 1
1
1
VIA
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
1
DIMM1
DIMM2

KM400T-8X Series
11
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 is optional)
There are two USB connectors on the back panel. These USB connectors (UHCI) 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 KM400T-8X Series also provides two USB headers on the board
allowing for 4 more USB ports. These attach to USB connectors embedded into the computer case or
connected to a USB connector bracket (optional). The KM400T-8X 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 TDP 7 NC
2 TDN 8 NC
3 RDP 9 VCC3 SBY
4 NC 10 ACT LED
5 NC 11 VCC3 SBY
6 RDN 12 Speed LED
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
PS/2
Mouse
PS/2
Keyboard
COM1COM1
(Serial Port)
(Print Port)
Parallel Port
USB
LAN
(optional)
COM2
S
p
eaker
Out
Game Port
Mic In
Line In
LAN
(o
p
tional)
USB

KM400T-8X Series
12
Serial and Parallel Interface Ports
The KM400T-8X Series come equipped with two serial ports and one parallel port.
The Serial Interface: COM1/ COM2
The serial interface port is sometimes referred to as a RS-232 port or an asynchronous
communication port. Mice, modems and other peripheral devices can be connected to a serial port.
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.
Game Port Connector: SOUND
This connector allows you to connect a joystick or game pad for playing computer games. This port
can also be used to connect to MIDI devices.
Audio Port Connectors
1. Speaker Out is used to connect to speakers or
headphones. If the Super 5.1 driver is installed the Speaker
Out becomes the Front Speaker.
2. 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 installed Line In becomes the Rear Speaker.
3. Mic In is used to connect to a microphone. If the Super
5.1 driver is installed the Mic In becomes the Subwoofer/
Center out.
Speaker
Out
Game Port
Mic In
Line In
Print Port
COM1 COM2
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.

KM400T-8X Series
13
Connector Configuration
Front Panel Indicator: SW/LED、PWRLED
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 SW (Reset Switch)
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)
The mainboard provides two power LED connector.If there is a 2-pin power LED cable on the front
panel of a computer case. You can attach it to the 2-pin power LED connector. The LED will
illuminate while the computer is powered on.
PWR SW (Power on Switch)
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.
PWR-LED (3-Pin Power LED Connector)
The mainboard provides two power LED connector. 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.
Pin Assignment Function Pin Assignment Function
1 HD LED (+) Hard Drive 2ACPI LED (+) POWER
3 HD LED (-) LED 4ACPI LED (-) LED
5 RST SW (-) Reset 6PWR SW (+) Power-on
7 RST SW (+) Switch 8PWR SW (-) Switch
9 NC NC 10 NC NC
V
I
A
VT8377
Winb on d
IO
W8 36 9 7HF
Socket 46 2
V
I
A
V
T8235
1 22
1
BIO S
1
99
10 10
1
1
1 1
1
VI
A
VT6 1 03
1 1 2
Codec
+1
2 3 4
-
1
1
1
PWRLED
SWLED
1 29
10
1
+NC-
1
1++
+
--
-
-
+
2
4
6
8
10
3
5
7
9

KM400T-8X Series
14
Speaker Header: SPEAKER
A front panel speaker can be connected to this connector. When you boot your computer, the speaker
sounds a short “beep” under normal circumstances. If there is a problem during the Power On
Self-Test, the speaker will sound an “irregular beep”.
Floppy Disk Connector: FDC
The 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/ IDE2
The mainboard has a 32-bit Enhanced PCI IDE Controller that supports Ultra DMA / 33, Ultra DMA
/ 66, Ultra DMA / 100 and Ultra DMA / 133. It has two HDD connectors, IDE1 and IDE2.
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.
V
I
A
V
T8377
Wi nb on d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T82 35
1 22
1
BIOS
99
10 10
1
1
1 1
1
VI
A
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
SPEAKER
PC_BEEP
NC
Ground
+5V
1
2
3
4
VIA
VT8377
Wi nb on d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T82 35
1 22
1
BIO S
99
10 10
1
1
1 1
1
VIA
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
IDE1
IDE2
FDC

KM400T-8X Series
15
Headers & Jumpers
Front USB Headers: USB2 / USB3
USB bracket (optional)
An optional USB bracket may be included with your board. The bracket is typical secured to the back
side of your computer and has standard USB ports that you can connect to external USB devices. The
bracket will also have cables that you can extend to the USB2, USB3 headers.
* If you are using USB 2.0 devices with Windows®2000/ XP, you will need to install the USB 2.0
driver from the Microsoft®website.
OTP (Over Temperature Protection) Jumper: JP4
The mainboard supports a special design for CPU Over Temperature Protection. If this function is
“Enabled” and the CPU temperature rises above the normal range, the system will automatically shut
down and you have to unplug the ATX_PWR connector. Remove and reinstall the CPU heat sink
also check to make sure the CPU fan is working properly.
*OTP is only functional when using an Athlon XPTM CPU.
V
I
A
V
T8377
Wi nb on d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T82 35
BIOS
1
1
1 1
1
VI
A
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
USB2 / USB3
5VSB 5VSB
DATA_A- DATA_B-
DATA_A+ DATA_B+
Gruond Gruond
NC NC
12
4
6
8
10
3
5
7
9
1 22
19 9
10 10
VIA
VT8377
Wi nb on d
IO
W8 369 7 HF
Socket 462
V
I
A
V
T82 35
BIO S
1
1
1 1
VIA
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
1 22
199
10 10
1
JP4
JP4
1
1
2
2
3
3
Pin1-2 short
Pin2-3 short
Disable
Enable (default)
(Short means to cover two pins on
a jumper using a jumper cap.)

KM400T-8X Series
16
Clear CMOS Jumper: JP1
The “Clear CMOS” jumper is used when you cannot boot your system due to some CMOS
configuration such as a password that is forgotten. This jumper allows you to reset the CMOS
configurations, and then reconfigure.
1. Turn off your system and disconnect the AC power cable.
2. Set JP1 pin 2-3 closed.
3. Wait several seconds.
4. Set JP1 pin 1-2 closed.
5. Connect the AC power cable and turn on your system.
6. If you need to reconfigure the BIOS configuration data, you can do so by accessing the BIOS
Setup Utility.
CPU Clock select Jumper: JP5、JP6
Use the jumpers “JP5” and “JP6” to select the CPU Clock. Refer the pictures below for details.
The following procedures are for resetting the BIOS password. It is
im
p
ortant to follow these instructions closel
y
.
V
I
A
V
T8377
Wi nb on d
IO
W8 3 6 9 7 H F
Socket 462
V
I
A
V
T82 35
BIOS
1
1
1 1
1
VI
A
VT61 03
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
1 22
19 9
10 10
JP1
JP1
1
1
2
2
3
3
Pin1-2 short
Pin2-3 short
Normal (default)
Clear CMOS data
(Short means to cover two pins on
a jumper using a jumper cap.)
VIA
VT8377
Wi nb o n d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T8235
BIO S
1
1
VIA
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
1 22
199
10 10
1
1 1
JP5 JP5
JP5
JP6 JP6
JP6
11
1
11
1
22
2
22
2
33
3
33
3
100 MHz 166 MHz
133 MHz

KM400T-8X Series
17
CPU Ratio select: SW1A、JP9 (Optional)
Use the switch “SW1A” and the jumper “JP9” to select CPU Ratio. Refer to the pictures below for
details.
Case Open Warning Header: CASE OPEN
This connector is used to notify the user when the computer case has been previously opened. To
configure this functionality, your computer case must be equipped with a “case open” cable which
you need to attach to the CASE OPEN header. Also, you must enable the CASE OPEN warning
functionality in the BIOS Setup Utility. When your computer case is opened, your system will
display alert messages upon boot up.
V
I
A
V
T8377
Wi nb on d
IO
W8 36 9 7HF
Socket 462
V
I
A
V
T82 35
BIO S
1
1
1 1
VI
A
VT6103
1 1 2
Codec
+1
2 3 4
-
1
1
11
29
10
1
1
1 2
2 19 9
10 10
CASEOPEN
1
2
Ground
Caseop-
1
VIA
VT8377
Wi nb on d
IO
W8 3 6 9 7 H F
Socket 462
VIA
VT8235
BIO S
1
1
VIA
VT6 1 03
1 1 2
Codec
+1
2 3 4
-
+
++
+
+
+ +
+
++
+
+
+ +
+
+ +
+
+
+ +
+
+ +
+
+ +
+
1
1 1
1
1
1 1
1
1 1
1
1
1 1
1
11
1
1
1 1
1
11
1
1 1
1
2
2 2
2
2
2 2
2
2 2
2
2
2 2
2
2 2
2
2
2 2
2
2 2
2
2 2
2
3
3 3
3
3
3 3
3
3 3
3
3
3 3
3
3 3
3
3
3 3
3
3 3
3
3 3
3
4
4 4
4
4
4 4
4
4 4
4
4
4 4
4
4 4
4
4
4 4
4
4 4
4
4 4
4
-
- -
-
-
--
-
- -
-
-
- -
-
- -
-
-
- -
-
- -
-
--
-
1
1
11
29
10
1
1
1 22
199
10 10
1
1 1
1
1 1
1
1
1 1
1
1 1
1
1
1 1
1
11
1
1
1 1
1
11
1
1 1
1
2
2 2
2
2
2 2
2
2 2
2
2
2 2
2
22
2
2
2 2
2
22
2
2 2
2
3
33
3
3
3 3
3
33
3
3
3 3
3
3 3
3
3
3 3
3
3 3
3
3 3
3
4
44
4
4
4 4
4
44
4
4
4 4
4
4 4
4
4
4 4
4
4 4
4
4 4
4
Ratio : 5 Ratio : 7
Ratio : 13
Ratio : 22
Ratio : 6 Rati o : 8
Ratio : 16
Ratio : 5.5 Rati o : 7.5
Ratio : 14
Ratio : 2
3
Ratio : 6.5 Ratio : 8.5
Ratio : 17
Ratio : 9 Ratio : 11
Ratio : 13.5
Ratio : 24
Ratio : 10 Ratio : 12
Ratio : 16.5
Ratio : 9.5 Rati o : 11.5
Ratio : 15
Ratio : 10.5 Ratio : 12.5
Ratio : 18
SW1A JP9