Abit AX5 User manual

PartNo:MN-096-2C1-41 Rev:1.21
Foreword
Foreword
ThankyouforpurchasingtheAB-PX5/AX5/TX5astheheartofyourcomputer’ssystem.
Wehopethisinstructionbookletwill enableyoutoinstall PX5/AX5/TX5inyoursystem
safelyandwithoutanyerrors.Althoughyoumaybefamiliarwithsomeoftheconceptswe
will explain,pleasereadoverthemagaintoavoidanyproblems.
1.ThemotherboardinmostPCsusemanyconnectingcablestoconnectperipheralsto
themainunit.Theimportantthingtorememberisthatthesecablesall havea
‘direction’.Laterinthechapter,wewill talkmoreaboutthedefinitionofconnecting
cablesandthemethodofinstallation.Pleasepayspecialattentiontoourprompts.
BecauseweareusingtheexclusiveABITSOFTMENUtechnologytomodifythe
motherboard,thejumperisnotrequiredanymore.Wealsousesimpleandeasyto
understandsoftwaredesigntocompletethistask.Becauseofthis,youcaninstall
themotherboarddirectlyintothesystem.However,westill suggestyoufirstcarry
outasimpletestbeforeyouinstall themotherboardinsidethecomputer.
2.Inthisbooklet,wewill writeoutinfull anynewtechnicalwordsweencounterfor
thefirsttimeandusetheircontractionsthereafter.
3.If,whenyouareinstallingtheCPUproblemsoccurandthereisnowaytosolve
them,wesuggestyoufirstcleartheCMOSinformation(refertoChapter2).Ifyou
still haveproblems,contactus.
4.Howtoperformasimplebasictest?It’ssimple.Place themotherboardonaflat
insulatedsurface (likethepackagingthemotherboardcamein).Plug theCPUinto

theZIFsocket(ifyouareinstallingafan,install itontop).Plug DRAMmodulein
andthenplug thekeyboardin.Plug intheelectricalcord(ensureelectricalsupplyis
turnedoff whendoingthis)andpayattentiontopolarity(refertoChapter2).Plug
inthedisplaycardandplug the15 PinD-Submonitorsignalconnectorintothe
displaycard.Makesuretheconnectionsarecorrectandsecureandthenturnonthe
powersource forthemonitorandthenthemainpowersupply.Ifapictureappears
onthemonitor,congratulations,thebasictesthasbeensuccessful.Finally,good
luckwiththecompleteinstallation.
Computers –ThingstoKnow!
CMOS(ComplementaryMetal-OxideSemiconductor)
Maybeyou’veheardofCMOSDATAquiteabitbuthaveneverseenit.Whatexactlyis
CMOS?Isitimportant?Well,ifitwasn’timportant,youwouldneverhadheardofit.
CMOSbasicallystoresorsavestheparametersyouassigntheBIOS(BasicInput
OutputSystem)withinmemory.ThismemoryorSRAMcanbebothreadfromand
writtentobutitneedsbatterypowertoavoidlosingthisinformationwhenthecomputer
isturnedoff.Whenthebatteriesgoflatoryouneedtoswapbatteries,youmaynot
remembertheparametersyouset.Toavoidthis,werecommendyourecordthese
parametersorstickthemtoyourharddriveforeasyreference.

PartNo:MN-096-2C1-41 Rev:1.21
TableofContents
Foreword
Chapter 1IntroductionofAX5/PX5/TX5Features
¬AX5............................................................................................1-2
lSpecifications.........................................................................1-2
lLayoutdiagram......................................................................1-4
-PX5.............................................................................................1-5
lSpecifications.........................................................................1-5
lLayoutdiagram......................................................................1-7
®TX5.............................................................................................1-8
lSpecifications.........................................................................1-8
lLayoutdiagram....................................................................1-11
¯Systemblockdiagram................................................................1-12
Chapter 2InstallingtheMainboard
¬InstallingtheMainboardtotheCasing.........................................2-3
-StandardExternalConnectors......................................................2-4
®JumpersandSwitches................................................................2-12
¯PresentationandInstallationoftheCPU....................................2-13
°InstallingSystemMemory ¡i DRAMMemory ¡j .........2-16
Chapter 3IntroductionofBIOS
¬CPUSetup ¡i CPUSOFTMENU™¡j .............................3-3
-StandardCMOSSetup Menu......................................................3-9
®BIOSFeaturesSetup Menu.......................................................3-11
¯ChipsetFeaturesSetup Menu....................................................3-17
°PowerManagementSetup Menu...............................................3-19
±PCI&OnboardI/OSetup .........................................................3-23
²LoadBIOSDefaults..................................................................3-28

³LoadSetup Defaults..................................................................3-28
´PasswordSetting.......................................................................3-29
µIDEHDD AutoDetection.........................................................3-30
AppendixAQuickInstallation
AppendixBIntelPentiumCPUs
AppendixCAMD-K5CPUs
AppendixDCyrix/IBM6x86 CPUs
AppendixEGeneralDiscussionaboutHDD Installation
AppendixFTechnicalSupport
AppendixGFlashBIOSUserInstructions
AppendixHHowtoinstall UltraDMA/33 drive
AppendixIHowtoinstall thePCIbridgedriverfor430TXchipset

IntroductionofAX5/PX5/TX5Features1-1
Chapter1Introduction of
AX5/PX5/TX5Features
TheAX5/PX5/TX5havebeenespeciallydesignedforFileserver,
WorkstationandProfessionalusers.Itcansupportawiderangeof
processors,includingall IntelCPUs(P54C)andIntelCPUswithMMX(P55C),
aswell asall AMD-K5/K6andCyrix6x86/6x86L/6x86MXCPUs.Italsotakes
intoaccount,asmuchaspossible,all futureCPUs.
TheAX5/PX5/TX5usesSOFTMENU™technology,whichmeansthat
all theparameterscanbeconfiguredwithoutusingDIPswitchesorjumpers.
Theconfigurationisentirelyachievedthrougha“SoftSwitch”thatallowsthe
usertosetCPUspeedandoperatingvoltagewithease.
TheAX5/PX5/TX5usesIntel430TXserieschipsets,andhas512KLevel-
2PipelineBurstSRAMonboard.
168-pinDIMM (DualIn-LineMemoryModule)slotsand72-pinSIMM
(SingleIn-LineMemoryModule)slotsmeettherequirementsforall memory
configurationsrequiredbyhighlevelcomputing.The168-pinDIMM slots
supporttraditionalFastPageandEDO (ExtendedDataOut)DRAMasa
memorystandardfornextgeneration64-bitsystems.The168-pinDIMM slots
havebeenreservedtomeetrequirementsforbothpresentandfutureupgrades.
TheAX5/PX5/TX5alsoprovidestwoUniversalSerialBus(USB)ports
andmeetstheConcurrentPCI(PeripheralComponentInterconnect)Rev.2.1
standard.ItalsosupportsIDEinterface forFastHDD (Mode0~4)and
UltraDMA/33 (DirectMemoryAccess ),aswell asIDEBusMaster.
Thesefeaturesalsomeetpresentandfutureinterface standardsandneeds.
SystemBIOSfeaturesincludePlug-and-Play(PnP),Advanced
ConfigurationPowerInterface (ACPI),thenewestDesktopManagement
Interface (DMI),aswell asAX5/PX5/TX5’suniqueCPUoperatingfrequency
andvoltagesetup featureinordertomeetmoderncomputingdemands.

1-2Chapter1
¬ AX5
nSpecifications
1.SupportATXpowersupply.
2.CPUfrequencyandvoltagesetup withCPU“SOFTMENU™”
lSetup ofthemainboard’sfrequencyandvoltagewithoutDIP
SwitchesorJumpers.
lModificationofCPUoperatingvoltageandfrequencybytheBIOS
Setup .
3.UsesZIFCPUSocket7foreasyCPUinstallation
lSupportswitchingpowerforCPUtogetmorestableenvironment
lSupportsIntelCPUs:
1)Pentium100MHzto200MHz
2)PentiumprocessorwithMMXTMtechnology166MHzto
233MHz
lSupportsAMDCPUs:
1)AMD-K5™PR100 ~PR166.
2)AMD-K6TM166MHz~233MHz.
lSupportsCyrix/IBMCPUs:
1)Cyrix6x86TMP120+~P200+.
2)Cyrix6x86LTMP150+~P200+.
3)Cyrix6x86MXTMPR150 ~PR233 .
4.Chipset
lIntel430TXchipset
lSupportsstandardversionPCI2.1
5.L2CacheMemory
l512Kofcachememory(PipelineBurstSRAM)
6.SystemDRAM
lFour72-pinSIMM sockets:supportFPandEDO DRAM
lThree 168-pinDIMM sockets:supportFP,EDO andSynchronous
DRAM(SDRAM)
lDIMM socketsusePCmodules(3.3VUnbufferedDRAM)
lUpto256MBmemoryconfigurationpossible

IntroductionofAX5/PX5/TX5Features1-3
7.SystemBIOS
lAWARDBIOS
lSupportsPlug-and-Play(PnP)
lSupportsAdvancedConfigurationPowerInterface (ACPI)
lSupportsDesktopManagementInterface (DMI)
8.MultiI/Ofeatures
l TwoUniversalSerialBus(USB)ports
l FourfastIDEchannels(PIOmode0~4,Ultra“DMA/33”andBus
Master)
lOnestandardEPP/ECPparallelportandtwo16550Aserialports
l Twofloppydiskdriveconnectors(FDD)(360K,720K,1.2M,
1.44Mand2.88M)
l SupportPS/2typemouse
9.Otherfeatures
l StandardATXarchitecturedimensions
l FourISAbusslotsandfourPCIbusslots
l Supports3-MODEforaspecialJapanesefloppydiskdrive
l Supportstwobootableharddisks--abletoruntwodifferent
operatingsystems
l SupportsIDEinterface CD-ROMandLS-120 typefloppydiskdrive
(Bootonly)
Note:All brandnamesandtrademarksarethepropertyoftheirrespectiveowners.
*Specificationsandinformationcontainedinthiscataloguearesubjecttochangewithout
notice.

1-4Chapter1
n Layoutdiagram
Fig1-1Layoutdiagram

IntroductionofAX5/PX5/TX5Features1-5
- PX5
nSpecifications
1.SupportsATpowersupply
2.CPUfrequencyandvoltagesetup withCPU“SOFTMENU™”
lSetup ofthemainboard’sfrequencyandvoltagewithoutDIP
SwitchesorJumpers.
lModificationofCPUoperatingvoltageandfrequencybytheBIOS
Setup.
3.UsesZIFCPUSocket7foreasyCPUinstallation
lSupportswitchingpowerforCPUtogetmorestableenvironment
lSupportsIntelCPUs:
1)Pentium100MHzto200MHz.
2 ) PentiumprocessorwithMMXTMtechnology166MHz
to
233MHz
lSupportsAMDCPUs:
1 ) AMD-K5™PR100 ~PR166.
2)AMD-K6TM166MHz~233MHz.
lSupportsCyrix/IBMCPUs:
1)Cyrix6x86TMP120+~P200+.
2)Cyrix6x86LTMP150+~P200+.
3)Cyrix6x86MXTMPR150 ~PR233 .
4.Chipset
lIntel430TXchipset
lSupportsstandardversionPCI2.1
5.L2CacheMemory
l512Kofcachememory(PipelineBurstSRAM)
6.SystemDRAM
lTwo72-pinSIMM sockets:supportFPandEDO DRAM
lTwo168-pinDIMM sockets:supportFP,EDO andSynchronous
DRAM(SDRAM)
lDIMM socketsusePCmodules(3.3VUnbufferedDRAM)
lUpto256MBmemoryconfigurationpossible

1-6Chapter1
7.SystemBIOS
lAWARDBIOS
lSupportsPlug-and-Play(PnP)
lSupportsAdvancedConfigurationPowerInterface (ACPI)
lSupportsDesktopManagementInterface (DMI)
8.MultiI/Ofeatures
l TwoUniversalSerialBus(USB)ports
l FourfastIDEchannels(PIOmode0~4,Ultra“DMA/33”andBus
Master)
lOnestandardEPP/ECPparallelportandtwo16550 serialports
l Twofloppydiskdriveconnectors(FDD)(360K,720K,1.2M,
1.44Mand2.88M)
l SupportPS/2typemouse
9.Otherfeatures
l StandardATarchitecturedimensions
l FourISAbusslotsandfourPCIbusslots
l Supports3-MODEforaspecialJapanesefloppydiskdrive
l Supportstwobootableharddisks--abletoruntwodifferent
operatingsystems
l SupportsIDEinterface CD-ROMandLS-120 typefloppydiskdrive
(Bootonly)
Noe:Albadamsndtrdearsrethpoprtoteirspctveower.
* peifcaiosndinoratoncotaneit isca algu aeubec tcaneit ou
noic.

IntroductionofAX5/PX5/TX5Features1-7
n Layoutdiagram
Fig1-2Layoutdiagram

1-8Chapter1
® TX5
nSpecifications
1.SupportsATandATXpowersupply
2.CPUfrequencyandvoltagesetup withCPU“SOFTMENU™”
lSetup ofthemainboard’sfrequencyandvoltagewithoutDIP
SwitchesorJumpers.
lModificationofCPUoperatingvoltageandfrequencybytheBIOS
Setup.
3.UsesZIFCPUSocket7foreasyCPUinstallation
lSupportswitchingpowerforCPUtogetmorestableenvironment
lSupportsIntelCPUs:
1)Pentium120MHzto200MHz
2 ) PentiumprocessorwithMMXTMtechnology166MHz
to
233MHz
lSupportsAMDCPUs:
1 ) AMD-K5™PR120 toPR166.
2)AMD-K6TM166MHz~*266MHz.
lSupportsCyrix/IBMCPUs:
1)Cyrix6x86TMP150+~P200+.
2)Cyrix6x86LTMP150+~P200+.
3)Cyrix6x86MXTMPR150 ~PR233 .
*Supports2.2VoltsVcorevoltage.(StartingformRev1.2),Can
supportAMD-K6TM266 MHzprocessor.
4.Chipset
lIntel430TXchipset
lSupportsstandardversionPCI2.1
5.L2CacheMemory
l512Kofcachememory(PipelineBurstSRAM)
6.SystemDRAM
lFour72-pinSIMM sockets:supportFPandEDO DRAM
lTwo168-pinDIMM sockets:supportFP,EDO andSynchronous
DRAM(SDRAM)
lDIMM socketsusePCmodules(3.3VUnbufferedDRAM)

IntroductionofAX5/PX5/TX5Features1-9
lUpto256MBmemoryconfigurationpossible
7.SystemBIOS
lAWARDBIOS
lSupportsPlug-and-Play(PnP)
lSupportsAdvancedConfigurationPowerInterface (ACPI)
lSupportsDesktopManagementInterface (DMI)
8.MultiI/Ofeatures
l TwoUniversalSerialBus(USB)ports
l FourfastIDEchannels(PIOmode0~4,Ultra“DMA/33”andBus
Master)
lOnestandardEPP/ECPparallelportandtwo16550 serialports
l Twofloppydiskdriveconnectors(FDD)(360K,720K,1.2M,
1.44Mand2.88M)
l SupportPS/2typemouse
9.Otherfeatures
l StandardATarchitecturedimensions
l Three ISAbusslotsandfourPCIbusslots
l Supports3-MODEforaspecialJapanesefloppydiskdrive
l Supportstwobootableharddisks--abletoruntwodifferent
operatingsystems
l Supportmonitorforsystemtemperature,Fanrunningandvoltage,
alsosupport
l Supportspecialinterface EISCAtomonitorsystemenvironment
l SupportsIDEinterface CD-ROMandLS-120 typefloppydiskdrive
(Bootonly)

1-10 Chapter1
TheEISCA(EnhancedIntelligentSystemCoolerArchitecture)
isaspeciallydesigned12-pininterface whichintegratesthe
MainboardandtheCPUcoolingsystem.Thissystemisatotal
solutionforPCsystemheatsinkproblems.
DuetoincreasingCPUspeed,whichcauseshigher
temperatures,findingwaystoeffectivelydealwithCPU
temperaturesisbecomingamoreandmorecrucialproblem.
EffectivelyandpreciselydeterminingCPUtemperaturewasa
veryimportantrequirement.Thearea directlyundertheCPU
socketisthelocationonthemainboard.closesttotheCPU,
andheatisconductedawayfromthisarea throughair
circulation.Determiningtemperaturechangeunder
thesecircumstancesisveryimprecise,asitonlyallowsusto
detectlargechangesintemperature.Inaddition,becausethe
airundertheCPUsocketisconfinedtothisarea,thesensor
cannotdetecttemperatureinrealtime.Testshaveproventhat
undersuchcircumstances,evenafter5minutesthesensor
locatedundertheCPUsocketisunabletodetectreal
temperaturechange,soitcannotmeettherequirementsfor
thermalproblems.
InEISCAarchitecture,thethermalsensorislocatedatthe
heat-sink.Inthisway,thesensorisabletodetectCPU
temperatureinrealtimeandmoreprecisely.TheEISCA
monitorsvoltage,fanspeedandfanon/off controltomeetthe
importantspecifications.
Note:All brandnamesandtrademarksarethepropertyoftheirrespectiveowners.
*Specificationsandinformationcontainedinthiscataloguearesubjecttochangewithout
notice.
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IntroductionofAX5/PX5/TX5Features1-11
n Layoutdiagram
Fig1-3Layoutdiagram

1-12 Chapter1
¯ Systemblockdiagram
Fig.1-4Systemblockdiagram
Pentium  Processor
3.3V
HostBUS
Data
Address
Control
CtrlAddr
Second
LevelCache
PCIBUS
Ctrl
Tag Ctrl
TIO[0..7]
Control
Address/Data
UniversalSerialBus
ISA BUS
Fast
IDEPIIX4
Main
Memory
(DRAM)
CACHE
(SRAM)
TAG
MTXC
CD ROM&
HardDisk
USB
1
USB
2
PCIDevice(s)
Winbond
W83977
ISA Device(s)
SerialLPT
FDC

InstallingtheMainboard 2-1
Chapter2Installing the
Mainboard
ThisAX5/PX5/TX5mainboardnotonlyprovidesall standardequipmentfor
classicpersonalcomputers,butalsoprovidesgreatflexibilityformeetingfuture
upgradedemands.Thischapterwill introduce stepbystepall thestandard
equipmentandwill alsopresent,ascompletelyaspossiblefutureupgrade
capabilities.Thismainboardisabletosupportall IntelPentiumincluding
P55CwithMMX,Cyrix6x86,6x86L,6x86MXandAMD-K5/K6processors
nowonthemarket.(Fordetails,see specificationsinChapter1.)
However,wecannotguarantee thatthedescriptiongiveninthismanualonthe
circuitryofyourmainboardwill workforprocessorsnotlistedinChapter1.
Forexample,theoperatingvoltageofCyrix’snextgenerationCPUsisunknown
atthepresenttime.Thuswewerenotabletoincludethesespecificationsin
yourmotherboard.Wewill supplyfurtherinformationaboutCPUsupport
whennewCPUsarriveonthemarket.
Thischapterisorganizedaccordingthefollowingfeatures:
ŒInstallingtheMainboardtotheCasing
•Standardexternalconnectors
ŽJumpersandswitches
•PresentationandInstallingoftheCPU.
ºInstallingthesystemmemory.
NNNN
Before proceedingwiththeinstallation
Beforeinstallingthemainboardpleasebesuretoturnoff ordisconnectthe
powersupplyunit.Beforemakinganymodificationstothehardware
configurationofthemainboard,thepowersupplytoanyareasofthemainboard
youplantomodifyshouldbeturnedoff toavoidunnecessarydamagetothe
hardware.

2-2Chapter2
&
Usrrindynsrutins
Ourobjectiveistoenablethenovice computerusertoperformtheinstallation
bythemselves.Wehaveattemptedtowritethisdocumentinaveryclear,
conciseanddescriptivemannertohelpovercomeanyobstaclesyoumayface
duringinstallation.Pleasereadourinstructionscarefullyandfollowthem
carefullystep-by-step.

InstallingtheMainboard 2-3
¬ InstallingtheMainboardtotheCasing
Mostcomputercaseswill haveabaseonwhichtherewill bemanymounting
holesthatallowsthemainboardtobesecurelyattachedandatthesametime,
preventsshortcircuits.
Therearetwowaystoattachthemainboardtothebase.
lwithspacers
lorwithbolts
Inprinciple,thebestwaytoattachthemotherboardiswithbolts,andonlyif
youareunabletodothisshouldyouattachtheboardwithspacers.Takea
carefullookatthemainboardandyouwill see manymountingholesonit.Line
theseholesup withthemountingholesonthebase.Iftheholeslineup,and
therearescrewholesthismeansyoucanattachthemainboardwithbolts.Ifthe
holeslineup andthereareonlyslots,thismeansyoucanonlyattachthe
mainboardwithspacers.Takethetipofthespacersandinsertitintotheslots.
Afterdoingthistoall theslots,youcanslidethemainboardintopositionaligned
withtheslots.Afterthemainboardhasbeenpositioned,checktomakesure
everythingisOKbeforeputtingthecasingbackon.
Note:Ifthemainboardhasmountingholes,butdon’tlineup withtheholes
onthebaseandtheirarenoslotstoattachthespacers,don’tpanic,youcanstill
attachthespacerstothemountingholes.Justcutthespacers(alongthedotted
line)(thespacermaybealittlehardsobecarefulofourhands).Inthiswayyou
canstill attachthemainboardtothebasewithoutworryingaboutshortcircuits.
Why isitthatCyrixisalwaysraisedinrelation toIBMinbooks?In
fact,thesetwo6*86 CPUs(limitedtothe6*86 series)arebasically
thesamething.BecauseCyrixdoesnothaveitsownproduction line,
ithascontractedIBMtomanufacturetheir6*86 CPUsforthem.
However,IBMhasstipulatedthattheCyrixCPUstheyproduce
haveboththeCyrixand IBMmarkprintedon it.
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2-4Chapter2
- StandardExternalConnectors
Insidethecaseofanycomputerseveralcablesandplugshavetobe
connected.Thesecablesandplugsareusuallyconnectedone-by-oneto
connectorslocatedonthemainboard.Youneedtocarefullypayattentionto
anyconnectionorientationthecablesmayhaveand,ifany,notice thepositionof
thefirstpinoftheconnector.Intheexplanationsthatfollow,wewill
describethesignificance ofthefirstpin.
PN1-KeylockconnectorPleasepayattention topinposition and orientation
Thisconnectorhasaspecificorientation.Connectthefive-threadkeylock
connectorcabletothePN1connectorpinsonthemainboard.
PinnumberNameorsignificance ofsignal
1+5VDCpowerLED
2NoconnectionpowerLED
3Ground powerLED
4Keyboardinhibit Signalkeylock
5Ground keylock
The“keylockswitch”isusedtolockthecomputer’skeyboard.
Thisdisablesthekeyboardsothatunauthorizedpersonscannot
useit.Whenthisfunctionisinuse,youwill needtouse
theunlockkeytoactivatethekeyboard.
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