VIA Technologies KT880 User manual

TRADEMARK
All products and company names are trademarks or registered
trademarks of their respective holders.
These specifications are subject to change without notice.
Manual Revision 1.0
September 06, 2004
VIAVIA
VIAVIA
VIA KT880KT880
KT880KT880
KT880 mainboardmainboard
mainboardmainboard
mainboard
for AMD Socket A processorfor AMD Socket A processor
for AMD Socket A processorfor AMD Socket A processor
for AMD Socket A processor
User’User’
User’User’
User’ss
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s
ManualManual
ManualManual
Manual
60000028VTA10

ii
DISCLAIMER OF WARRANTIES:
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION ON THE FACE OF THE MANUFACTURER LIMITED
WARRANTY. THE MANUFACTURER EXPRESSLY EXCLUDES ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING ITS
PRODUCTS; INCLUDING ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
NONINFRINGEMENT. THIS DISCLAIMER OF WARRANTIES SHALL
APPLY TO THE EXTENT ALLOWED UNDER LOCAL LAWS IN THE
COUNTRY PURCHASED IN WHICH LOCAL LAWS DO NOT ALLOW OR
LIMIT THE EXCLUSION OF THE IMPLIED WARRANTIES.

iii
Table of Contents
Section 1 Introduction
Package Contents ...................................................... 1- 1
Mainboard Features ................................................... 1- 2
System Block Diagram ............................................... 1- 4
Section 2 Specification
Mainboard Specification ............................................ 2- 1
Section 3 Installation
Mainboard Layout ..................................................... 3- 1
Easy Installation Procedure ....................................... 3- 2
CPU Insertion ............................................................. 3- 2
Jumper Settings .......................................................... 3- 4
System Memory Configuration .................................. 3- 5
Expansion Slots .......................................................... 3- 6
Device Connectors..................................................... 3- 7
Power-On/Off (Remote) .............................................. 3-12
External Modem Ring-in Power ON and
Keyboard Power ON Function (KBPO) ..................... 3-12
STR (Suspend To RAM) Function ............................ 3-13
Section 4 BIOS Setup
Main Menu ................................................................ 4- 1
Standard CMOS Setup ............................................... 4- 2
Advanced BIOS Features .......................................... 4- 3
Advanced Chipset Features ...................................... 4- 5
Integrated Peripherals ................................................ 4-10
Power Management Setup ......................................... 4-14
PNP/PCI Configuration .............................................. 4- 17
Page

iv
PC Health Status ........................................................ 4-19
Power BIOS Features ................................................. 4-20
Defaults Menu ........................................................... 4-22
Supervisor/User Password Setting ............................ 4-23
Exit Selecting .............................................................. 4-24
Section 5 S-ATA RAID Configuration
Introduction ............................................................... 5- 1
VIA S-ATA RAID Features ........................................ 5- 3
Enable RAID Function ............................................... 5- 4
Section 6 Driver Installation
Easy Driver Installation .............................................. 6- 1
Realtek Sound Manager Quick User guide ................ 6- 2
Appendix Appendix A
Update Your System BIOS ......................................... A- 1
Appendix B
VIA RAID BIOS Utility ................................................ B- 1

Introduction
Page 1-1
Section 1
INTRODUCTION
1-1 Package Contents
Contents
A. Mainboard
B. User’s manual
C. Floppy drive cable
D. HDD drive cable
E. CD (drivers and utilities)
F. I/O Shield
Optional Items
G. S-ATA data and power cable
H. Extra USB2.0 port cable
I. S/PDIF Module
B
A
C
D
USER’S
MANUAL
E
F
H
GI
If you need the optional item, please
contact your dealer for assistance.

Introduction
Page 1-2
1-2 Mainboard Features
Brief Introduction
AthlonTM Processor
The AMD AthlonTM is a seventh-generation micro architecture with an integrated
L2 cache, which is powerful enough to support the bandwidth requirements of a
large range of applications, hardware, graphics, and memory technologies.
For more information about all the new features AthlonTM Processor deliver, check out
the AMD website at http://www.amd.com
Chipset
The board is designed with VIA chipset, KT880 as North Bridge and VT8237 as
South Bridge, providing a feature rich and scalable platform.
The North Bridge connects to the South Bridge through the fast Ultra V-Link
connection at 1.06GB/s. With support for two Serial ATA channels at 150MB/s
bandwidth, integrated RAID (0, 1 & JBOD) capability as well as up to eight USB
2.0 ports, the VT8237 offers the highest possible peripheral performance for
professional users. Additional features include a VIA MAC for 10/100Mbps Fast
Ethernet, integrated PCI support.
For more details about the VIA chipset features, please visit the VIA Web site at
http://www.via.com.
Accelerated Graphics Port (AGP)
The AGP slot on the board is compliant with the new AGP 3.0 specification. This
new specification enhances the functionality of the original AGP specification
by allowing 8X data transfers ( 8 data samples per clock) resulting in maximum
bandwidth of 2.1GB/s. Only 1.5V AGP cards are supported.
Ultra ATA100/133
The mainboard provides an Ultra ATA100/133 Bus Master IDE controller. This
controller supports Ultra ATA100/133 protocols which are ideal to support
demanding applications such as real-time video, multimedia, and a high perfor-
mance operating system. A new IDE cable is required for Ultra ATA100/133.
Hardware Monitoring
Hardware monitoring enables you to monitor various aspects of the system
operation and status. This includes CPU temperature, voltage and fan speed in RPMs.

Introduction
Page 1-3
10/100 LAN
This mainboard is mounted with an ethernet LAN PHY. It allows the mainboard to
connect to a local area network by means of a network hub.
Serial ATA
Support Serial ATA, an evolutionary replacement for Parallel ATA IDE storage
interface .Increases the peak data transfer speed up to 150MB/sec and allows
future enhancements to the computing platform.
USB2.0
A popular USB standard for plugging in peripherals with up to 480Mbps transfer
speed while maintaining backward compatibility with older USB1.1 device.
6ch
Delivers 6 channel audio to bring you the latest in audio realism from DVD
movies and games. Perfect for your home theatre system.
QuickSPDIF
On board SPDIF-out connector for quick connection to multi-channel speakers.
Not only removes cable cluttering but also delivers loss-free digital audio to let
you enjoy DVD movies and games with crystal clear sound.
Magic Health
Reports your system hardware status for every boot-up to help detect faults
early. Monitor hardware status including CPU temperature, CPU/Memory
voltage, fan RPM speed for chassis fan, CPU fan & Power supply fan.
EZ-Boot
Simply press “ESC” to select your bootable device. No more hassle to search the
BIOS menu, change and re-start.
PowerBIOS
Supporting a full range of overclocking setting via BIOS. Various adjustable
feature include FSB/Memory voltage tweaking.

Introduction
Page 1-4
1-3 System Block Diagram

Specification
Page 2-1
Section 2
SPECIFICATION
Mainboard Specification
Processor
Supports 462-pin Socket A for AMD Athlon XP processors with up to
400MHz FSB Athlon XP (1500+ to 3200+) @266/333/400MHz Front Side
Bus
Chipset
VIA AGPset : VIA KT880 + VT8237
Main Memory
Two 184-pin DDR DIMM sockets
Support single-sided or double-sided 2.5v DDR-266/333/400 DIMMs with
dual channel architecture in 64/128/256/512Mb/1Gb technologies
Supports up to 2GB memory size
BIOS
Flash EEPROM with Award BIOS
- ACPI v2.0 compliant
- S3 (Suspend to DRAM) sleep-state support
- SMBIOS (System Management BIOS) v2.2 compliant
- Supports Power failure recovery
- Able to wake the computer from specific states by LAN, Power switch,
PME#, RTC alarm, USB, PS2 K/B, PS2 Mouse, Modem Ring-in COM port..
Onboard Devices
LAN --> 10/100Mpbs Fast Ethernet with onboard VIA VT6103L LAN
PHY

Specification
Page 2-2
Legacy IO Controller
Winbond W83687THF LPC IO controller with floppy, printer, game, serial
and SIR interface
Supports Hardware Monitoring function
Audio
Six channel audio with analog and digital output using Realtek ALC655
AC’97CODEC
- AC’97 v2.3 compliant
- Supports CD-In, AUX-IN and S/PDIF-in/out interface
- Supports Line-out and Mic-In for front panel
- Supports automatic “Jack-sensing”
- Rear panel audio jacks configuration:
Peripheral Interfaces
))
))
)At Rear Panel
PS/2 keyboard and mouse ports
One Parallel (printer) port
One S/PDIF-Out Coaxial jack
One Serial port
One RJ45 LAN connector
Four USB2.0 ports
Three Audio jacks
))
))
)Onboard connector and pin-header
One floppy drive connector
Two ATA-133 IDE connectors
Four extra USB2.0 ports
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Specification
Page 2-3
One CD-IN and One AUX-IN connectors
One S/PDIF in/out connector
One IR connector
Two S-ATA connectors
Three Fan connectors
Front Panel Controller
Supports Reset & Soft-Off switches
Supports HDD & Power LEDs
Supports PC speaker
Supports Front Panel Audio connector
Expansion Slots
One AGP slot supporting 1.5v 4X/8X AGP card
- AGP v3.0 compliant
Five PCI slots with Bus Master support
- PCI v2.2 compliant
Other Features
Magic Health – A quick “dashboard” display at POST to show hardware
status. Helps to detect faults early.
EZ Boot – An easy way let end-user can choose to boot from hard drive,
CD-ROM, floppy, …
KBPO – Keyboard power on, turn on the computer from keyboard
PowerBIOS for excellent Overclocking capabilities through
- subtle voltage tuning for CPU, Memory
- subtle frequency tuning on FSB with 1MHz increment
Supports complete Asynchronous FSB/Memory scheme for overclocking
Form Factor
305mm x 210 mm ATX size

Specification
Page 2-4

Installation
Page 3-1
Mainboard Layout
<Figure 1>
Section 3
INSTALLATION

Installation
Page 3-2
Easy Installation Procedure
The following must be completed before powering on your new system:
3-1. CPU Installation
3-2. Jumper Settings
3-3. System Memory Configuration
3-4. Expansion Slots
3-5. Device Connectors
3-1 CPU Installation
CPU Insertion: (use AMD AthlonTM as reference)
Step 1
Open the socket by raising the actuation
lever.
<Figure 2>
Step 2
Insert the processor.
Ensure proper pin 1 orientation by aligning
the FC-PGA corner marking with the
socket corner closest to the actuation arm
tip. The pin field is keyed to prevent mis-
oriented insertion.
Don’t force processor into socket. If it does
not go in easily, check for mis-orientation
and debris.
Make sure the processor is fully inserted
into the socket on all sides.
<Figure 3>

Installation
Page 3-3
Step 3
Close the socket by lowering and
locking the actuation lever.
<Figure 4>
<Figure 5>
Step 4
Install the CPU heatsink as shown in Figure 5. Thermal compound and qualified
heatsink recommended by AMD are a must to avoid CPU overheat damage. For
more information about installing your CPU, please refer to the AMD website article
“Socket A AMD processor and Heatsink Installation Guide” http://www.amd.com/
products/cpg/athlon/pdf/23986.pdf.

Installation
Page 3-4
3-2 Jumper Settings
1
JCMOS1:
Settings:
1-2: Normal (Default)
2-3: Clear CMOS
Clear CMOS data Jumper
If the CMOS data becomes corrupted or
you forgot the supervisor or user
password, clear the CMOS data to
reconfigure the system back to the
default values stored in the ROM BIOS.
To CMOS Clear data, please follow the steps below.
1. Turn off the system.
2. Change the jumper from “1-2” to “2-3” position for
a few seconds.
3. Replace the jumper back to the “1-2” position.
4. Turn on the system and hold down the <Del> key
to enter BIOS setup.

Installation
Page 3-5
<Figure 6>
<Table 1>
DDR DIMM 1
DDR DIMM 2
3-3 System Memory Configuration
Memory Layout
The mainboard accommodates three PC2100/PC2700/PC3200 184-pin DIMMs (Dual
In-line Memory Modules):
• Supports up to 2.0GB of 266/333/400MHz DDR SDRAM
• Supports up to 2 DDR DIMMs (refer to Table 1)
• Supports 64/128/256/512Mb, 1Gb x8 & x16 DRAMs
• Supports 128-bit dual channel memory architecture
• Supports unbuffered and non-ECC DIMMs
• Supports configurations defined in the JEDEC DDR DIMM specification
Figure 6 and Table 1 show several possible memory configurations.
MMID1
)tib-46(
MMID2
)tib-821(
1#MMIDSD/SSSD/SS
2#MMIDSD/SSSD/SS
* SS: Single-Sided DIMM, DS: Double-Sided DIMM
NOTES:
• For one DIMM memory configuration, the DIMM can be located on any of
DIMM#1 to DIMM#2 in 64-bit mode.
• For two DIMMs memory configuration, the DIMMs can be located on all
DIMM socket to enable 128-bit mode. It is preferable to use DRAM DIMM
of the same type and size.
• Using non-compliant memory with higher bus speeds (overclocking) may
severely compromise the integrity of the system.

Installation
Page 3-6
3-4 Expansion Slots
AGP Slot
The mainboard is equipped with an AGP
slot. Make sure you install a card that
supports the 1.5V specification.
PCI Slots
The mainboard is equipped with 5 PCI
slots.
PCI Slots
AGP Slot
AGP Card Installation Caution
When installing the AGP card make sure the AGP card edge
connector is inserted fully into the slot and the slot clicker is locked.

Installation
Page 3-7
3-5 Device Connectors
The I/O back panel for this mainboard is shown below. When installing the
mainboard into the computer case, use the bundled I/O shield to protect this back
panel.
Figure 7 - I/O Ports
JCPU_FAN1 / JPWR_FAN1 / JSYS_FAN1:
CPU/Power/Chassis Fan Power Connectors
JCPU_FAN1: The CPU must be kept cool by using a
heatsink with fan assembly.
JPWR_FAN1:If you are installing an additional fan
in the unit, connect to this fan
connector.
JSYS_FAN1: The chassis fan will provide adequate
airflow throughout the chassis to
prevent overheating the CPU.
JSYS_FAN1
Ground
+12V
Sense
1
JCPU_FAN1
Ground
+12V
Sense
1
JPWR_FAN1
Ground
1
+12V
Sense
JSYS_FAN1
JCPU_FAN1
JPWR_FAN1


The system is capable of monitoring the fan speed in
RPM (Revolutions Per Minute). Refer to the PC
Health Status submenu of the BIOS for the current
speed of the CPU fan , power fan and chassis fan.
USB2.0 x 4 ports
Parallel Port
PS/2
Mouse
PS/2
Keyboard
RJ45
LAN
COM1
S/PDIF-out
Coaxial Jack
Mic-in/Center&Subwoofer (Pink)
Line-out/Front out (Green)
Line-in/Rear out (Blue)

Installation
Page 3-8
FDD1:Floppy Controller Connector
This connects to the floppy disk drive.
IDE1/IDE2: Ultra DMA-100/133 Primary/Secondary
IDE Connector
This mainboard is equipped with 2 IDE connectors
to support up to 4 ATA-133 IDE drives.
It supports PIO and DMA mode operations for
maximum data transfer rate of 133MB/sec per channel.
PW1 PW2
PW1: 20-pin ATX Power Connector
PW2: 4-pin ATX12V Power Connector
The mainboard is equipped with a standard 20-pin
ATX main power connector and a 4-pin +12V
power connector for connecting an ATX12V
power supply. The plugs of the power cables are
designed to fit in only one orientation. Insert the
plugs into the connectors until they fit in place.
Caution:
The PW1 and PW2 Power Connector must be used simultaneously
for the system to work safely.
40 39
21
IDE1/IDE2
34 33
21
FDD


When using two IDE drives, one must be set to
Master mode and the other to Slave mode. Refer to
your disk drive user’s manual for information about
selecting the proper drive switch settings.


The board requires a minimum of 250 Watt power
supply to operate. Your system configuration (amount
of memory, add-in cards, peripherals, etc.) may
exceed this minimum power requirement. To ensure
that adequate power, use a 300 Watt or greater power
supply.
1
3
1
-12V3.3V
Ground+5V
PS-ON+5V
-5VPW-OK
+5V5VSB
+5V+12V
+12V+12V
10
11
4
2
3.3V3.3V
GroundGround
GroundGround
GroundGround
GroundGround
20
PW1
PW2
IDE1 IDE2
FDD1