Shuttle MS52P User manual

MS52P/MS52PN
Pentium4Processor
BasedDDR MAINBOARD
User'sManual

Shuttle®MS52P/MS52PN
Pentium4,478-pinprocessorbasedDDR Mainboard
ManualVersion 1.0
Copyright
Copyright©2003 byShuttle®Inc.All RightsReserved.
Nopartofthispublication maybe reproduced,transcribed,stored inaretrievalsystem,
translated intoanylanguage,ortransmitted inanyform orbyanymeans,electronic,
mechanical,magnetic,optical,chemical,photocopying,manual,orotherwise,without
priorwritten permission fromShuttle®Inc.
Disclaimer
Shuttle®Inc.shall notbe liableforanyincidentalorconsequentialdamagesresulting fromthe
performanceoruseofthisproduct.
Thiscompanymakesno representationsorwarrantiesregarding the contentsofthismanual.
Information inthismanualhasbeen carefullychecked forreliability;however,no guarantee is
given astothe correctness ofthe contents.Inthe interestofcontinued productimprovement,
thiscompanyreservesthe righttorevisethe manualorinclude changesinthe specifications
ofthe productdescribed withinitatanytimewithoutnoticeand withoutobligation tonotifyany
person ofsuchrevision orchanges.The information contained inthismanualisprovided for
generalusebythe customers.
Trademarks
Shuttleisaregistered trademarkofShuttleInc.
Intel,Pentiumisaregistered trademarks ofIntelCorporation.
SiSisaregistered trademarks ofSiSCorporation.
PS/2isaregistered trademarkofIBMCorporation.
AWARDisaregistered trademarkofAwardSoftwareInc.
Microsoft and Windowsareregistered trademarks ofMicrosoft Corporation.
GeneralNotice:Otherproductnamesused inthismanualareascribed totheirrespective
ownersand acknowledged.
M775

StatementofShuttleMainboardviatheEMITest
Shuttlemainboardshavebeen viathe EMItestintermsofseriesofregulations:EN55022/
CISPR22/AS/NZS3548 Class B,EN55024 (1998/AS/NZS),EN4252.1(1994),EN61000,ANSI
C63.4(1992),CFR47 Part15 SubpartB,and CNS13438 (1997).The itemstested areillus-
trated asfollows:
(A)Voltage:AC110V/60HZ&AC230V/50HZ
(B)Tested ProductInformation:
ProductName:PCMainboard
Status:Sample
ModelName:MS52PN
S/N:
CPU:
ExternalFrequency:100 MHz
IntelP41.4/1.5/1.6/1.7/1.8/1.9/2/2.2/2.4GHz
ExternalFrequency:133 MHz
IntelP41.6/1.7/2.26/2.4/2.8/3.06GHz
KeyboardPort: one portwith6pins
MousePort: one portwith6pins
USB 2.0Port: twoportswith4pinsrespectively
ParallelPort: one portwith9pins
SerialPort: twoportswith9pinsrespectively
MIDI/GamePort: one portwith15 pins
Line-Out&Line-In&Mic-InPorts:one portforeach
DDR Memory:256 MB*2
LANPort: one portwith8pins
All CPUshavecompletelybeen tested,and valuesoffered bythe worstEMIcombination of
CPUexternalfrequency arelisted asfollows:
(C)Remedyforthe Tested Product&ItsEMIInterference:
Remedy:N/A
EMIInterference:
Crystal:14.318 KHz(Y1)/24.576 MHz(Y2)/32.768 MHz(Y3)/25MHz(Y4)/12MHz(Y5)
Clock Generator:CLK1/CLK2
Test Mode External Frequency CPU Case Open/Closed
1133MHz Pentium4
3.06GHz Closed
2133MHz Pentium4
3.06GHz Open
3100MHz Pentium4
2.4GHz Closed
4100MHz Pentium4
2.4GHz Open

(D)Supported HostPeripherals:
(G)NoticesforAssembling Computers:
1.Casesshouldbe made ofiron orothermetalthathasgood electricconductivity.
2.Cylindersinacaseshouldbe made ofmetal,and ashaving amainboardmounted
inacase,makesurescrewsareall utilized and fastened on amainboard.
3.AnI/O shielding shouldbe contacted withI/O metallicpartsofamainboard.
4.Cablesshouldappropriatelybe arranged and fixed inacase.Followinstructions:
Ø LeaveIDEcablesnotcrossed upon CPUand SDRAM;
Ø Leavepowercablesminimuminlength,and notcrossed upon amainboard;
Ø LeaveCPUfan cablesminimuminlength,and notnearCPU;
Ø Leavecableson panelsand othersparecablestied inacomputercase.
5.Makesurean EMIshielding attached toacasehasproperlybeen installed.
6.Makesurea5.25"or3.5"FDDand screwsarefastened toan EMIshielding.
7.MakesureacaseiscloselyincontactwithEMIconnected points.
8.Makesurethereisno cleft inacasewhichisnotdeformed.
9.MakesureaPCIorAGPdoorisbound toacase.
10.Makesurecablesofotherdevices(fansorsomeothers)arefixed inacase.
Host Peripheral Product Name Model Name S/N FCC ID
#1 Case KF45A N/A
#2 Power Supply (300W) ENP-0730 (ATX12V) 1000002885
#3 IBM HDD (30.7GB) 91024UB YKFY7981 3892I168
#4 MITSUMI FDD D353M
#5 SONY VCD Player CDU4811 3892A291
#6 AGP Card Winfast Geforce 2 MX 3892C520
#7 Power Cable Detachable and Shielded

-1-
WHAT'SINTHEMANUAL.................................................................... 5
Quick Reference............................................................................................... 5
AboutThisManual............................................................................................ 5
1INTRODUCTION................................................................................ 6
1.1TODIFFERENTUSERS............................................................................. 6
FIRST-TIMEDIYSYSTEMBUILDER............................................................ 6
EXPERIENCEDDIYUSER......................................................................... 6
SYSTEMINTEGRATOR............................................................................... 6
1.2ITEMCHECKLIST....................................................................................... 7
2FEATURES ........................................................................................ 8
2.1SPECIFICATIONS....................................................................................... 8
3HARDWAREINSTALLATION...............................................................11
3.1STEPBYSTEPINSTALLATION........................................................................11
AccessoriesofMS52P/MS52PN..................................................................11
STEP1CPUInstallation........................................................................ 12
STEP 2SetJumpers............................................................................. 14
STEP 3InstallDDR SDRAMSystemMemory........................................ 14
STEP4Install PeripheralsinSystemCase............................................ 15
STEP5Mountthe Mainboardon the ComputerChassis........................ 16
STEP6ConnectFrontPanelSwitches/LEDs/Speaker/USB.................. 17
STEP 7ConnectIDEand FloppyDiskDrives........................................ 18
STEP8ConnectOtherInternalPeripherals............................................ 18
STEP 9Connectthe PowerSupply........................................................ 19
STEP10 InstallAdd-on CardsinExpansion Slots.................................. 20
STEP11 ConnectExternalPeripheralstoBack Panel........................... 21
STEP 12 FirstTimeSystemBootUp..................................................... 22
STEP13 InstallDrivers&SoftwareComponents................................... 23
TABLEOFCONTENTS

-2-
3.2JUMPERSETTINGS................................................................................. 24
JUMPERS&CONNECTORSGUIDE.................................................... 25
Jumpers
ClearCMOSSetting (JP1)................................................................... 28
BIOSWriteProtection (JP3).................................................................. 28
Back-PanelConnectors
PS/2Keyboard&PS/2MouseConnectors............................................ 29
COM1PortConnector........................................................................... 29
ParallelPortConnector.......................................................................... 29
Line-outportconnector......................................................................... 29
Line-inportconnector............................................................................ 30
Mic-inportconnector............................................................................. 30
GAME/MIDIportconnector.................................................................... 30
LANportconnector................................................................................ 30
USB port1/USB port2connectors......................................................... 30
Front-PanelConnectors
ATXpoweron/off switchconnector(PWRSW)....................................... 31
Green LEDconnector(GRN LED)......................................................... 31
HDD LEDconnector(HDD LED)........................................................... 31
Hardwareresetconnector(RST)............................................................ 32
Speakerconnectorn(SPEAKER1)........................................................ 32
Front-orientedMicrophone/Line-outportheader(AUDIO1).................... 32
Extended USB headers(USB2/3).......................................................... 33
InternalPeripheralsConnectors
EnhancedIDEandFloppyConnector................................................... 34
OtherConnectors
ATXPowerSupplyConnectors(ATX1/ATX2)........................................ 35
AudioCD_INconnectors(CDIN1/CDIN2).............................................. 35

-3-
Wake-on-Modemconnector(WOM1)..................................................... 36
Wake-on-Lanconnector(WOL1)............................................................ 36
Cooling Fan ConnectorsforCPU(CPUFAN1),Case(CASFAN1/
PWRFAN1)........................................................................................... 36
IRheader(IR1)...................................................................................... 37
3.3SYSTEMMEMORYCONFIGURATION..................................................... 38
1.INSTALLMEMORY............................................................................ 38
2.UPGRADEMEMORY........................................................................ 38
4SOFTWAREUTILITY...................................................................... 39
4.1MainboardCD Overview ......................................................................... 39
4.2Install MainboardSoftware..................................................................... 40
4.3InstallVGADeviceDriver.................................................................................41
4.4InstallSISAGPDriver.......................................................................................42
4.5InstallAudioDeviceDriver..............................................................................43
4.6InstallLANDriver(MS52PNonly)....................................................................44
4.7InstallUSB2.0Driver..........................................................................................45
4.7ViewtheUser'sManual....................................................................................46
5BIOSSETUP...................................................................................47
5.1ENTERBIOS............................................................................................. 47
5.2THEMAINMENU ...................................................................................... 48
STANDARDCMOSFEATURES ............................................................... 50
ADVANCEDBIOSFEATURES ................................................................. 53
ADVANCEDCHIPSETFEATURES .......................................................... 57
INTEGRATEDPERIPHERALS.................................................................. 59
POWERMANAGEMENTSETUP.............................................................. 64
PNP/PCICONFIGURATION....................................................................... 68

-4-
PCHEALTHSTATUS................................................................................ 70
FREQUENCY/VOLTAGECONTROL......................................................... 71
LOADFAIL-SAFEDEFAULTS................................................................... 72
LOADOPTIMIZEDDEFAULTS.................................................................. 72
SETPASSWORD ..................................................................................... 73
SAVE &EXITSETUP................................................................................ 74
EXITWITHOUTSAVING............................................................................ 74

-5-
Quick Reference
HardwareInstallation >> Step-by-Step................................................. Page11
JumperSettings>> ACloserLook.......................................................Page25
Drivers/SoftwareUtilities >> HowtoInstall..........................................Page39
BIOSSetup >> HowtoConfigure.........................................................Page47
AboutThisManual
ForFirst-TimeDIYSystemBuilder.........................................................Page6
ForExperiencedDIYUser......................................................................Page6
ForSystemIntegrator.............................................................................Page6
WHAT’SINTHE MANUAL

-6-
1.1To DifferentUsers
First-TimeDIYSystemBuilder
WelcometotheDIYworld!Buildingyourowncomputersystemisnotasdiffi-
cult asyou maythink.To make yourfirstcomputerDIYexperiencesuccessful,
rightfromthestart, wehave designedthe3.1HardwareInstallation section in
astep-by-stepfashion forall thefirst-timeDIYsystembuilders.Priortoinstalla-
tion,wealsosuggestyou toreadthewholemanualcarefullytogainacom-
pleteunderstandingofyournewShuttleMS52P/MS52PNmainboard.
ExperiencedDIYUser
Congratulateon yourpurchaseoftheShuttleMS52P/MS52PNmainboard.You
will find thatinstallingyournewShuttleMS52P/MS52PNmainboardisjust
easy.Bundledwithanarrayofonboardfunctions,thehighly-integratedMS52P/
MS52PNmainboardprovidesyou withatotalsolution tobuildthemoststable
and reliablesystem.Refertosections3.2JumperSettingsand Chapter4
Drivers/SoftwareUtilitiestofind outhowtogetthebestoutofyournew
mainboard.Chapter5BIOSSetup alsocontainstherelevantinformation on
howtotuneup yoursystemtoachieve higherperformance.
SystemIntegrator
You have wiselychosenShuttleMS52P/MS52PNtoconstructyoursystem.
ShuttleMS52P/MS52PNincorporatesall thestate-of-the-arttechnology ofthe
SiS651 Northbridge and SIS962LSouthbridge chipsetsfromSiS.It integrates
themostadvancedfunctionsyou canfind todateinacompactMicroATX
board.
1INTRODUCTION
ThismanualadoptedinMS52P and MS52PNmainboardsatthesametime.
ThedifferencenbetweenMS52P and MS52PNequipswithonboardLAN
Controller.Inthemanual, if therearesomestandards,characters,equipment
orsoftwareonlyappearedoradoptedbyMS52PN; it will bementioned
(MS52PNonly).

-7-
1.2ItemChecklist:
Checkall itemswithyourMS52P/MS52PNmainboardtomake surenothing
ismissing.Thecompletepackage shouldinclude:
-OnepieceofShuttle
MS52P/MS52PNMainboard
-OnepieceofATA133/100/66/33 Ribbon Cable
-OnepieceofFloppyRibbon Cable
-OnepieceoftwinportsUSBCable(optional)
-I/OShielding
-MS52P/MS52PNUser'sManual
-OnepieceofBundledCD-ROMwithcontaining:
ØMS52P/MS52PNusermanualsavedinPDFformat
ØSiSChipsetdriver
ØSiSAGPdriver
ØAC'97 AudioDevicedriver
ØLANdriver(MS52PNonly)
ØUSB2.0driver
ØAwardFlashingUtility
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PCI1PCI1
CNR1
USB
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USB
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PSKBM1
A M P
PSKBM1
A M P
PCI2
PCI3
CAS FAN1
CPU FAN1
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JP3
FDD1
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AUDIO1AUDIO1
LF-H50X
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-8-
MS52P/MS52PNmainboardiscarefullydesignedforthedemandingPCuserwho wants
highperformanceand maximumintelligentfeaturesinacompactpackage.
2.1Specifications
-CPUSupport
IntelPentium4/Celeron/HyperThreading,478-pinprocessorswith400 /
533MHzFSB.
-Chipset
FeaturesSiS651 N.B.and SiS962LS.B..
-OnboardLan(MS52PNonly)
Realtek RTL8100B,support10Mb/sand 100Mb/soperation.
-Jumperless CPUConfiguration
Soft-configuration FSB(TheFSBspeedissoftwareconfigurablefrom100MHz
to133MHzintheFrequency/Voltage ControlofBIOSsetup program.)
-AC'97 LinkforAudioand TelephonyCODEC
AC'97 2.2compliant.
SpreadindependentPCIfunctionsforModemand 4channelAudio.
-VersatileMemorySupport
Two184-pinDIMM slotstosupportup to2GBofPC1600 and PC2100 or
PC2700 compliantDDRSDRAMmodule
-AGPExpansion Slot
Providesone32-bit AGPslotwhichsupports4xAGPdevices.
-PCIExpansion Slots
Providesthree 32-bit PCIslots.
-CNR Expansion Slot
ProvidesoneCommunication and NetworkRiser(CNR)slot.
-6USB2.0Interface Onboard
Ø2USBconnectorson back-paneland twosetsofdualUSBportsheader
on board.
2FEATURES

-9-
-I/OInterface
ProvidesavarietyofI/Ointerfaces:
Ø1PS/2mouseconnector
Ø1PS/2keyboardconnector
Ø1serialport.
Ø1VGAport.
Ø1parallelport..
Ø1MIDI/GAMEport.
Ø2USBports.
Ø1LANport.(MS52PNonly)
Ø1Line-Outport.
Ø1Line-Inport.
Ø1Mic-Inport.
-PCIBusMasterIDEControllerOnboard
TwoUltraDMA133/100/66 BusMasterDual-channelIDEportsprovidesup-
porttoamaximumoffourIDEdevices(oneMasterand oneSlave perchannel).
TheIDEBusimplementsdatatransferspeedsofup to133/100/66/33 MB/sec
and alsosupportsEnhancedPIOModes.
80-pinCableBackwardCompatibleLegacyATAPIDevices,ATAPIIDECD-
ROM,CD-R,CD-RW,and LS-120 Supports.
-ATXPowerSupplyConnector
ATXpowersupplyunit canconnectedtotheonboard20-pinPentium4
standardATXpowerconnectors,supportingSuspend and Soft-On/Off by
dual-function powerbutton.
ThePentium4ATXpowerincludeone4-pin+12VATXpowerconnector.
-AdvancedConfiguration and PowerInterface
Featuresfourpowersavingmodes:S1(Snoop), S3(Suspend toRAM), S4
(Suspend toDISK), and S5(Soft-Off). ACPIprovidesmoreefficientEnergy
SavingFeaturescontrolledbyyouroperatingsystemthatsupportsOSDirect
PowerManagement(OSPM)functionality.
-SystemBIOS
ProvideslicensedAwardBIOSV6.0PGon 2MbFlashcoreand supports
GreenPC,Desktop ManagementInterface(DMI).

-10 -
-FormFactor
SystemboardconformstoMicroATXspecification.
Boarddimension:244mm x244mm.
-AdvancedFeatures
ØLowEMI-Built inspreadspectrumand automaticclockshut-off of
unusedPCI/SDRAMSslotstoreduceEMI.
ØDualFunction PowerButton -Thesystemcanbeinoneoftwostates,
oneisSuspend modeand theotherisSoft-Off mode.Pushingthepower
button forless than4secondsplacesthesystemintoSuspend mode.
Whenthepowerbutton ispressedforlongerthan4seconds,thesystem
entersSoft-Off mode.
ØModemRingPower-On(WOM1)-Thesystemcanbepoweredon
automaticallybytheactivation ofmodemringing.
ØWake-on-Lan(WOL1)-TheonboardWOLconnectorcanbeattachedto
anetworkcardthatsupportsthisfunction towake up thesystemviaLAN.
ØCPUHost/DRAM/PCIClockSetting-Thisitemallowsuserstoadjust
CPUHostClock,DRAM,and PCIClockinBIOS.
ØCPUMultiplierSetting-ThisitemallowsuserstoadjustCPUMultiplier
inBIOS.
-IntelligentFeatures
ØVoltage Monitoring-Monitorsvariousvoltagesofkey elements,suchas
theCPU, and othercriticalsystemvoltage levelstoensurestablecurrent
passingthroughmainboardcomponents.
ØFanStatusMonitoring-To preventCPUfromoverheating,theCPUfan
ismonitoredforRPM(CPUCoolingFANwithRPMsensorisrequired.)
ØTemperatureMonitoring-Thisitemallowsuserstomake surewhether
theCPUorsystemrunsinasuitabletemperature.

-11 -
BeforeremovingorinstallinganyofthesedevicesincludingCPU, DIMMs,Add-On
Cards,Cables,pleasemake suretounplugtheonboardpowerconnector.
Thissection outlineshowtoinstall and configureyourmainboard.Refertothefollowing
mainboardlayouttohelpyou toidentifyvariousjumpers,connectors,slots,and ports.
Thenfollowthesestepsdesignedtoguideyou throughaquickand correctinstallation of
yoursystem.
3.1Step-by-StepInstallation
3HARDWARE INSTALLATION
Accessories OfMS52P/MS52PN
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CNR1
USB
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USB
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PSKBM1
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PCI2
PCI3
CAS FAN1
CPU FAN1
JP 3
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ATX2
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PS/2 Keyboard/
PS/2 Mouse Connectors
USB & LAN (MS52PN Only)
Connectors
Line-Out/Line-In/Mic-In
Game/MIDI Connectors
Socket 478
Serial Port Connector
(COM1)
Parallel Connector
RTL8100 LAN Controller
(MS52PN Only)
VGA Port
CNR Slot
Front-oriented Microphone/
Line-out port header-Audio1
Three PCI Slots
Case Fan Connector1-PWRFAN1
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BIOS Write Protection- JP3
Wake on Modem- WOM1
ATX Power Connector-ATX2
One AGP 4X Slot
SiS 962L
SiS 651
ATX 12V Power Connector
-ATX1
Two DDR DIMM Slots
CPU Fan Connector-CPUFAN1
TwoIDEConnectors
FrontPanelHeader-PANEL1
Floppy Connector
SpeakerConnector-SPEAKER1
Clear CMOS - JP1
ExtendedUSB-USB2\3
Header

-12 -
Step1
CPUInstallation:
ThismainboardsupportsIntelPentium4/Celeron ,Socket478 seriesCPU.
PleasefollowthestepasbelowtofinishCPUinstallation.
BecarefulofCPUorientation whenyou plugit intoCPUsocket.
1.Pull up theCPUsocketleverand up to90-degree angle.
2.LocatePin1inthesocketand lookforablackdotorcutedge on theCPU
upperinterface.MatchPin1and cutedge,theninserttheCPUintothe
socket. CPUpin1and cutedge
CPUsocketleverup to
90 degree

-13 -
3.Press downtheCPUsocketleverand finishCPUinstallation.
Note:If you do notmatchtheCPUsocketPin1and CPUcutedge
well, it maydamage theCPU.
4.TheIntelPentium4/Celeron processorrequiresasetofheatsink/fanto
ensurepropercoolingoftheprocessor.If heatsink/fanhave notbeen
alreadybundledwithyourCPU, you mustpurchasetheheatsink/fan
separatelyand have it installed.Plugthecablethroughtheheatsink/fanin
theCPUfanpowerconnectorlocatednearby.Notethatthereareseveral
typesofCPUfanconnectors.Normally,if yourmainboardsupports
thebardwaremonitoringfunction,a3-pinfanpowerconnectorshould
allowyoursystemtodetecttheCPUfan'sspeed.TheCPUfancanalso
run witha2-pinfanpowerconnector,however,detection ofCPUfan's
speedisnotsupported.AnothertypeofCUPfanmayfeaturealarge 4-pin
fanpowerconnector,whichdoesnotsupportCPUfan'sspeeddetection
and mustbedirectlyconnectedtothesystem'spowersupplyunit.

-14 -
Step2.
SetJumpers
Thedefault jumpersettingshave beensetforthecommon usage standardof
thismainboard.Therefore,you do notneedtoresetthejumpersunless you
requirespecialadjustmentsasanyofthefollowingcases:
1.ClearCMOS
2.BIOSWriteProtect
Forfirst-timeDIYsystembuilders,werecommend thatyou do notchange the
default jumpersettingsif you arenottotallyfamiliarwiththemainboard
configuration procedures.Thefactory-setdefault settingsaretunedforopti-
mumsystemperformance.Fortheadvanceduserswho wishtocustomize
theirsystem,section 3.2JumperSettingswill providedetailedinformation on
howtoconfigureyourmainboardmanually.
Step3
Install DDR SDRAMSystemMemory
To install memory,insertDDRSDRAMmemorymodule(s)inDIMM slot(s).
NotethatDDRSDRAMmodulesaredirectionaland will notgointheDIMM
slotsunless properlyoriented.Afterthemoduleisfullyinsertedintothe
DIMM slots,lift theclipsofbothsidesoftheDIMM slottolockthemodulein
place.
DDR SDRAM

-15 -
Step4
Install InternalPeripheralsinSystemCase
Beforeyou install and connectthemainboardintoyoursystemcase,we
recommend thatyou firstassembleall theinternalperipheraldevicesintothe
computerhousing,includingbutnotlimitedtotheharddiskdrive (IDE/
HDD), floppydiskdrive (FDD), CD-ROMdrive,and ATXpowersupplyunit.
Thiswill greatlyfacilitateinmakingtheconnectionstothemainboardde-
scribedbelow.
To install IDE&FDD drives,followthisprocedure:
1.Settherequiredjumperson eachdeviceaccordingtotheinstructions
providedbythemanufacturer.(IDEdevices,HDD, and CD-ROM,have to
setjumperstoMasterorSlave modedependingon whetheryou install
morethanonedeviceofeachkind.)
2.ConnectIDEcableand FDD cableon theback-paneloftheinternal
peripheraldevicestothecorrespondingheaderson board.Notethatthe
cableshouldbeorientedwithitscoloredstripe(usuallyredormagenta)
connectedtopin#1 bothon themainboardIDEorFDD connectorand on
thedeviceaswell.
3.Connectanavailablepowercablefromyoursystempowersupplyunit
totheback-panelofeachperipheraldevice.Notethatthepowercableis
directionaland cannotfit inif notproperlypositioned.

-16 -
Step5
MounttheMainboardon theComputerChassis
1.You mayfind thattherearealotofdifferentmountingholepositions
bothon yourcomputerchassisand on themainboard.To choose
correctmountingholes,thekey pointistokeeptheback-panelofthe
mainboardinaclosefit withyoursystemcase,asshownbelow.
2.Afterdecidingon thepropermountingholes,position thestudsbetween
theframeofthechassisand themainboard.Thestudsareusedtofixthe
mainboardand tokeepacertaindistancebetweenthesystemchassisand
themainboard,inordertoavoidanyelectricalshortsbetweentheboard
and themetalframeofthechassis.(If yourcomputercaseisalready
equippedwithmountingstuds,you will needtotightenscrewstoattach
themainboard.)
Note: Inmostcomputerhousings,you will beabletofind 4ormore
attachmentpointstoinstall mountingstudsand thenfixthe
mainboard.If therearen't enoughmatchingholes,thenmake sureto
install atleast4mountingstudstoensureproperattachmentofthe
mainboard.