VIA Technologies VIA KT266A ChipsetMotherboard User manual

VIA KT266A Chipset
Motherboard
USER’S MANUAL
AMD Duron/Athlon Socket A CPU

VIA KT266A Chipset Motherboard
SupportingAMDSocketADuron/Athlon/AthlonXPSeriesProcessors
100/133 MHz Front Side Bus Frequency
AGP 4X
VIA®KT266A Chipset
Welcome!
Congratulationsonyourpurchaseofthisgreatvaluemotherboardwithitsrangeofspecialfeatures
andinnovativeonboardfunctionsbuiltaroundtheadvancedarchitectureofthenewVIA®KT266A
Chipset. More details will follow later in this manual.
Your User’s Manual
ThisUser’sManualisdesignedtohelp endusersandsystemmanufacturerstosetupandinstall
themotherboard. Alloftheinformationwithinhasbeencarefullycheckedforaccuracy. However,
the manufacturer is not responsible or liable for any errors or inaccuracies, which this manual
may contain. This includes references to products and software. In addition, the information
and specifications are subject to change without prior notice.
Disclaimer
This manual is provided “as is” without any warranty of any kind, either expressed or implied,
including, but not limited to, conditions of merchantability or fitness for a particular purpose.
Trademarks
Allbrands,productnames, and trademarksmentionedinthisdocument arethepropertyoftheir
respective owners or companies and are used solely for identification or explanation.
Copyright
Thismanualmaynot,inwholeorinpart,bephotocopied,reproduced,transcribed,translated,or
transmittedinany formorlanguagewithouttheprior writtenconsentofthemanufacturer, except
forcopiesretainedbythepurchaserforpersonalarchivingpurposes.
ManualVersion: 1.0
Release Date: December 2001

BIOS Upgrading Utility and Motherboard
Shield
BIOS Upgrading Utility—One Click is All it Takes!
We are proud to inform you that your new motherboard comes with a BIOS upgrading and
motherboard protection utility.This BIOS updating program makes BIOS updating easy, and
enhances the security and stability of systems built with your motherboard.
BIOS Upgrading Utility Features:
•Anti-VirusBIOSProtection–Thismotherboardcomeswithanewhardwaremonitoring
functionthat can prevent any unauthorized BIOSupdating caused by viruses. Only
this BIOS upgrading utility can update the BIOS for this motherboard.
•BIOSUpdatingConfidence – Beyond preventing viruses, the BIOS upgrading utility
allowsBIOSupdatingwithconfidence. Inthepast,anyfailureorincorrectoperation
during BIOS updating could crash the whole system. Normally the user wouldn’t
havethecapabilitytoretrieveand reestablish the system, they could only return the
computer to the supplier for costly, time-consuming repairs. With the enhanced
security of this BIOS upgrading utility, users of this motherboard can completely
avoid these problems. No matter what happens during BIOS updating, the user’s
system can still boot from the floppy drive, allowing the updating command to be
executedagain.
•One-Click, Online BIOS Updating – For users of Windows 9X/Me/2000/XP/NT 4.0,
theBIOSupgradingutilityallowsyoutouseaninnovativeonlineupdatingtechnology.
Just one click can detect the BIOS version of your system, download the latest
version, and execute all the updating commands automatically from the Internet.
Restartingthe computer completes the BIOS updating. This featureshould be very
handy for users who need to update BIOS repeatedly, especially MIS staff. The
onlineBIOSupdatingprogramisincludedonthe driversCD-ROMincludedinthebox
withyourmotherboard. Followingthestep-by-stepinstructions,youcaneasily update
or backup your BIOS. (If you have a different OS, see “Chapter 4 BIOS Upgrade”
for your BIOS updating procedure.)
•LinearOverclocking – the BIOS upgrading utility also provides a linear overclocking
function. Users can fine-tune the Front Side Bus (FSB) by increasing or reducing it
by as little as 1.0MHz to find the optimum FSB setting for the system. Should the
FSBbesettoohigh, thesystemcanbereturnedto the defaultsettingbypressingthe
“INS” key.

TableofContents
CHAPTER 1 INTRODUCTION 1
1.1 EssentialHandlingPrecautions.......................................................................... 1
1.2 Checklist: Hardware Required for Setup........................................................... 2
1.3 PackageContents ............................................................................................. 3
1.4 SpecificationsandFeatures............................................................................... 3
CHAPTER 2 HARDWARE INSTALLATION 5
2.1 VIAKT266AChipsetMotherboard..................................................................... 5
2.2 LayoutofVIAKT266AChipsetMotherboard...................................................... 6
2.3 CPUInstallation ................................................................................................. 7
2.4 100/133MHz SystemConfiguration .................................................................... 8
2.5 ClearCMOSJumper ......................................................................................... 9
2.6 SuspendToRAMSetting ................................................................................... 9
2.7 Keyboard Wake Up............................................................................................ 9
2.8 MemoryConfiguration...................................................................................... 10
2.9 Primary/SecondaryIDEConnectors................................................................. 11
2.10 FloppyDiskDriveConnector ........................................................................... 12
2.11 FanPowerConnectors .................................................................................... 12
2.12 Wake-on-LANConnector ................................................................................. 13
2.13 Wake-on-ModemConnector ............................................................................ 13
2.14 IrDA-CompliantInfraredModule Connector ...................................................... 14
2.15 PowerConnector ............................................................................................. 14
2.16 PanelConnectors ............................................................................................ 15
2.17 InternalAudioConnectors ................................................................................ 16
2.18 ExternalBack Panel I/OPorts .......................................................................... 17
2.19 InternalUSBPortConnectors........................................................................... 18

CHAPTER 3 BIOS SETUP 20
3.1 BIOS Setup........................................................................................................20
3.2 The MainMenu ..................................................................................................20
3.3 Standard CMOS Features .................................................................................22
3.4 Advanced BIOS Features ..................................................................................25
3.5 Advanced Chipset Features ...............................................................................28
3.6 IntegratedPeripherals........................................................................................33
3.7 Power Management Setup.................................................................................38
3.8 PnP/PCI Configuration Setup .............................................................................42
3.9 PC Health Status................................................................................................44
3.10 Frequency/Voltage Control.................................................................................45
3.11 Load Fail-Safe Defaults .....................................................................................46
3.12 LoadOptimized Defaults....................................................................................47
3.13 SupervisorPassword.........................................................................................47
3.14 User Password ..................................................................................................48
3.15 Save & Exit Setup ..............................................................................................49
3.16 ExitWithoutSaving ............................................................................................49
CHAPTER 4 BIOS UPGRADE 50
4.1 How to Upgrade Your Motherboard BIOS..........................................................50