MSI MS-7255 User manual

i
G52-72551XA
P4M890M2 /P4M900M2
Series
MS-7255 (V2.0)Mainboard

ii
CopyrightNotice
The materialinthisdocumentistheintellectual propertyof MICRO-STAR
INTERNATIONAL.Wetakeeverycareinthe preparationof thisdocument, butno
guaranteeisgivenastothecorrectnessofitscontents.Ourproductsareunder
continualimprovementand wereservetherighttomakechangeswithoutnotice.
Trademarks
Alltrademarksarethepropertiesoftheirrespectiveowners.
NVIDIA,theNVIDIAlogo,DualNet, and nForceareregisteredtrademarksortrade-
marksofNVIDIACorporationin theUnitedStatesand/orothercountries.
AMD,Athlon ,Athlon XP,Thoroughbred ,andDuron areregisteredtrade-
marksofAMDCorporation.
Intel®andPentium®areregisteredtrademarksofIntelCorporation.
PS/2and OS®/2areregisteredtrademarksofInternationalBusiness Machines
Corporation.
Windows®95/98/2000/NT/XPareregisteredtrademarksofMicrosoftCorporation.
Netware®isaregisteredtrademarkofNovell,Inc.
Award®isaregisteredtrademarkofPhoenixTechnologiesLtd.
AMI®isaregisteredtrademarkofAmericanMegatrendsInc.
RevisionHistory
Revision RevisionHistory Date
V2.0 ForEurope Janurary2007
TechnicalSupport
Ifaproblemariseswithyoursystemandnosolutioncanbeobtainedfromtheuser’s
manual,pleasecontactyourplaceofpurchaseorlocaldistributor.Alternatively,
pleasetrythefollowing helpresourcesforfurtherguidance.
Visit theMSI websiteforFAQ,technical guide,BIOSupdates,driverupdates,
andotherinformation: http://www.msi.com.tw/program/service/faq/
faq/esc_faq_list.php
Contactourtechnical staff at: http://support.msi.com.tw

iii
SafetyInstructions
CAUTION: Dangerofexplosionifbatteryisincorrectlyreplaced.
Replaceonlywiththe sameorequivalenttype recommendedbythe
manufacturer.
1. Alwaysread thesafetyinstructionscarefully.
2. KeepthisUser’sManualforfuturereference.
3. Keepthisequipmentawayfromhumidity.
4. Laythisequipmentonareliableflatsurfacebeforesetting itup.
5. Theopeningsontheenclosureareforairconvectionhenceprotectstheequip-
ment fromoverheating.DONOTCOVERTHEOPENINGS.
6. Makesurethevoltageofthe powersourceandadjustproperly110/220Vbe-
foreconnectingtheequipmenttothepowerinlet.
7. Placethe powercordsuchawaythatpeoplecannotstepon it. Donotplace
anythingoverthepowercord.
8. AlwaysUnplug thePowerCordbeforeinsertinganyadd-oncardormodule.
9. All cautionsand warningsontheequipmentshouldbenoted.
10. Neverpouranyliquidintotheopeningthatcoulddamage orcauseelectrical
shock.
11. If anyof thefollowing situationsarises, gettheequipmentcheckedbyaservice
personnel:
†Thepowercordorplugisdamaged.
†Liquid haspenetratedintotheequipment.
†Theequipmenthasbeen exposedtomoisture.
†Theequipmenthasnotworkwelloryoucannotgetitworkaccording to
User’sManual.
†Theequipmenthasdroppedand damaged.
†Theequipmenthasobvioussign of breakage.
12.DONOTLEAVETHISEQUIPMENTINANENVIRONMENTUNCONDITIONED,STOR-
AGETEMPERATUREABOVE600 C(1400F),IT MAYDAMAGETHEEQUIPMENT.

iv
FCC-BRadio Frequency Interference Statement
Thisequipmenthasbeen
tested and found tocomply
withthe limitsforaClassB
digitaldevice,pursuanttoPart
15of the FCCRules.Theselimitsaredesignedtoprovidereasonable protection
againstharmful interferenceinaresidentialinstallation.Thisequipmentgenerates,
usesand canradiateradiofrequencyenergyand,ifnotinstalledand used in accor-
dancewiththeinstructions,maycauseharmful interferencetoradiocommunications.
However,thereisno guarantee thatinterferencewill notoccurin aparticular
installation.Ifthisequipmentdoescauseharmful interferencetoradioortelevision
reception,whichcanbedeterminedbyturning theequipmentoff and on,the useris
encouragedtotrytocorrecttheinterferencebyone ormoreof themeasureslisted
below.
†Reorientorrelocatethereceiving antenna.
†Increasetheseparationbetweentheequipmentand receiver.
†Connecttheequipmentintoanoutleton acircuitdifferentfromthatto
whichthereceiverisconnected.
†Consultthedealeroranexperiencedradio/televisiontechnicianforhelp.
Notice1
Thechangesormodificationsnotexpresslyapprovedbythepartyresponsible for
compliancecould void theuser’sauthoritytooperatetheequipment.
Notice2
Shieldedinterfacecablesand A.C.powercord,ifany,mustbeusedinorderto
complywiththeemissionlimits.
VOIRLANOTICED ’INSTALLATIONAVANTDERACCORDERAURESEAU.
Micro-StarInternational
MS-7255
ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothe
followingtwoconditions:
(1)thisdevicemaynotcauseharmfulinterference,and
(2)thisdevicemustaccept anyinterferencereceived,includinginterferencethat
maycauseundesiredoperation.

v
WEEE (WasteElectricaland ElectronicEquipment) Statement

vi

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viii
CONTENTS
English......................................................................................................................En-1
MainboardSpecifications.................................................................................En-2
CentralProcessing Unit:CPU...........................................................................En-5
Memory...............................................................................................................En-7
Connectors,Jumpers,Slots.............................................................................En-9
BackPanel........................................................................................................En-18
BIOSSetup.......................................................................................................En-21
SoftwareInformation......................................................................................En-25
Deutsch....................................................................................................................De-1
Spezifikationen..................................................................................................De-3
Hauptprozessor:CPU.......................................................................................De-5
Speicher.............................................................................................................De-7
Anschlüsse,Steckbrückenund Slots.............................................................De-9
HinteresAnschlusspanel...............................................................................De-19
BIOSSetup......................................................................................................De-21
Software-Informationen................................................................................De-25
Fran ais.....................................................................................................................Fr-1
Spécificités.........................................................................................................Fr-3
CentralProcessing Unit:CPU............................................................................Fr-5
Mémoire...............................................................................................................Fr-7
Connecteurs,Cavaliers,Slots..........................................................................Fr-9
PanneauArrière..............................................................................................Fr-19
Configuration duBIOS......................................................................................Fr-21
InformationdeLogiciel.....................................................................................Fr-25
Русский ....................................................................................................................Ru-1
Характеристики ...............................................................................................Ru-5
Центральный процессор (CPU).....................................................................Ru-5
Папять ...............................................................................................................Ru-7
Соединители, перемычки, разъемы ............................................................Ru-9
Задняя панель ..............................................................................................Ru-19
Настройка BIOS.............................................................................................Ru-21
Сведения опрограммном обеспечении ..................................................Ru-25

P4M890M2/
P4M900M2Series
User sGuide
English

En-2
MS-7255Mainboard
MainboardSpecifications
ProcessorSupport
-SupportsIntel®Pemtium®4ExtremeEdition,Pentium®4,Pentium®
D,Celeron®Dand Intel®CoreTM 2DuoprocessorsintheLGA775
package.
-Supports3/4pinCPUFanPin-HeaderwithFanSpeedControl.
-SupportsEISTTechnology
-SupportsHyper-Threading(HT)Technology
-SupportsIntel®DualCoreTechnology
Werecommend useprocessorwith95wpowerconsumption
Forthelatestinformationabout CPU,pleasevisithttp://www.msi.
com.tw/program/products/mainboard/mbd/pro_mbd_cpu_support.
php
SupportedFSB
-1066/800/ 533 MHz
Chipset
-NorthBridge:VIA®P4M890/P4M900 chipset
-SouthBridge:VIA®VT8237A/ VT8237S(optional) chipset
MemorySupport
-DDRII 400/533/667 SDRAM(2GBMax)
-2DDRII DIMMs(240pin/1.8V)
Fortheupdatedsupporting memorymodules,pleasevisit http://
www.msi.com.tw/program/products/mainboard/mbd/
pro_mbd_trp_list.php
LAN(optional)
-Supports10/100 FastEthernetbyRealtek®RTL8201CL
-Supports10/100/1000 FastEthernetbyRealtek®RTL8110SB
Audio
-Chipintegrated byALC883orALC888(optional)
-Flexible8-channelaudiowithjack sensing
-CompliantwithAzalia1.xHDaudio
IDE
-2IDEports(4IDEdevices)
-SupportsUltraDMA33/66/100/133 mode
-SupportsPIO,BusMasteroperationmode
SATA
-2SATAports
-Supports2SATAdevices
-SupportsSATAand datatransfersatupto150 MB/s(VT8237A)
-SupportsSATAII and datatransfersatup to300 MB/s(VT8237S)

En-3
InstallationGuide
English
Floppy
-1floppyport
-Supports1FDD with360K,720K, 1.2M,1.44Mand2.88Mbytes
Connectors
Back panel
-1PS/2mouseport
-1PS/2keyboardport
-1serialport(COM1)
-1parallelportsupporting SPP/EPP/ECPmode
-1D-Sub VGAport
-4USB2.0Ports
-1LANjack
-6flexibleaudiojacks
On-BoardPinheaders
-1frontAudiopinheader
-1CD-inpinheader
-1SPDIF-outpinheader
-2USB 2.0pinheaders
-1serialport pinheader(JCOM2)
-1ChassisIntrusionpinheader
Slots
-1PCI Expressx16 slot
-1PCI Expressx1slot
-2PCIslots(Support 3.3V/ 5V PCIbusInterface)
FormFactor
-Micro-ATX(24.4cmX21.0cm)
Mounting
-6mountingholes

En-4
MS-7255Mainboard
QuickComponentsGuideofP4M890M2/P4M900M2Series
(MS-7255v2.X)Mainboard
A
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D
G
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En-5
InstallationGuide
English
ThemainboardsupportsIntel®processor.ThemainboardusesaCPUsocketcalled
Socket775 foreasyCPUinstallation.Ifyou do not havetheCPUcooler,consultyour
dealerbeforeturningonthe computer.
ForthelatestinformationaboutCPU,pleasevisithttp://www.msi.com.tw/program/prod-
ucts/mainboard/mbd/pro_mbd_cpu_support.php
1
Central ProcessingUnit:CPU
Important
Overheating
Overheatingwill seriouslydamage the CPUand system.Always makesurethe
cooling fancan workproperlytoprotectthe CPUfromoverheating.Makesure
thatyouapplyaneven layerofthermalpaste(orthermaltape)betweenthe CPU
andtheheatsinktoenhanceheatdissipation.
ReplaceingtheCPU
WhilereplacingtheCPU,alwaysturnoff the ATXpowersupplyorunplug the
powersupply spowercordfromthegrounded outletfirsttoensurethe safetyof
CPU.
Overclocking
Thismainboardisdesignedtosupportoverclocking.However,pleasemake
sureyourcomponentsareabletotoleratesuchabnormalsetting, whiledoing
overclocking.Anyattempttooperatebeyond productspecificationsisnot
recommended. We donotguarantee thedamages orrisks causedbyinad-
equateoperationorbeyond productspecifications.

En-6
MS-7255Mainboard
CPU&CoolerInstallationProcedures forSocket775
1.TheCPUsockethasaplasticcap onittoprotectthecontactfrom
damage.Beforeyou haveinstalled the CPU,alwayscoverit topro-
tectthesocketpin.
2.Removethecapfromleverhinge side.
3.The pinsofsocketreveal.
4.Openthe loadlever.
5.Liftthe load leverup andopenthe load plate.
6.Afterconfirming theCPUdirectionforcorrectmating,putdownthe
CPUinthesockethousingframe.Besuretograspontheedge ofthe
CPUbase.Notethatthe alignmentkeys arematched.
7.Visuallyinspectifthe CPUisseatedwellintothesocket. Ifnot, take
outtheCPUwithpureverticalmotionandreinstall.
8.Covertheloadplateontothepackage.
9.Press downtheloadleverlightlyontotheloadplate,and then
securetheleverwiththehookunderretentiontab.
10.Aligntheholeson the mainboardwiththe cooler.Pushdownthe
cooleruntil itsfourclipsgetwedgedintotheholesofthemainboard.
11.Press thefourhooks downtofastenthecooler.Thenrotatethe
locking switch(refertothecorrectdirectionmarkedonit)tolockthe
hooks.
12.Turnoverthemainboardtoconfirmthattheclip-ends
arecorrectlyinserted.
alignmentkey
Important
1.Read the CPUstatusinBIOS.
2.WheneverCPUisnotinstalled,alwaysprotectyourCPUsocketpinwiththe
plasticcapcoveredtoavoiddamaging.
3.Mainboardphotosshowninthissectionarefordemonstrationofthe CPU/
coolerinstallationonly.Theappearanceofyourmainboardmayvarydepend-
ingonthe modelyoupurchase.

En-7
InstallationGuide
English
Memory
DDR
Specification :184-pin,2.5v.
Singlechanneldefinition :All DIMM slotsareGREENcolor.
Dualchannelsdefinition :DIMMslot(s)onChannelAaremarkedinGREENcolor.
DIMMslot(s)onChannelBaremarkedinPurplecolor.
DDR2
Specification :240-pin,1.8v.
Singlechanneldefinition :All DIMM slotsareGREENcolor.
Dualchannelsdefinition :DIMMslot(s)onChannelAaremarkedinGREENcolor.
DIMMslot(s)onChannelBaremarkedinOrangecolor.
64x2=128 pin 56x2=112 pin
40x2=80pin 52x2=104 pin
2
3
Important
-DDR2memorymodulesarenot interchangeablewithDDR and the DDR2stan
dardisnotbackwardscompatible. You shouldalwaysinstallDDR2memory
modulesinthe DDR2DIMM slots.
-InDual-Channelmode,makesurethatyouinstall memorymodulesof thesame
typeanddensity indifferentchannelDIMM slots.
-Toenablesuccessfulsystemboot-up, always insertthe memorymodulesintothe
DIMM1first.

En-8
MS-7255Mainboard
InstallingMemoryModules
Youcanfind thenotchonthememorymodulesand thevoltontheDIMM slotswhether
DDRorDDR2.Followtheproceduresbelowtoinstall thememorymoduleproperly.
1.The memorymoduleshasonlyone notchonthecenterandwillonlyfitintheright
orientation.
2.InsertthememorymoduleverticallyintotheDIMMslot.Thenpushitinuntilthe
goldenfingeronthememorymoduleisdeeplyinserted inthe DIMMslot.
3.Theplasticclipateachside oftheDIMMslot will automaticallyclose.
Volt Notch
Important
Youcan barelysee the golden fingerif the memorymoduleisproperlyinserted in
theDIMMslot.

En-9
InstallationGuide
English
Connectors,Jumpers, Slots
FloppyDisk Drive Connector
Thisconnectorsupports360KB, 720KB, 1.2MB, 1.44MBor2.88MBfloppydiskdrive.
5
FanPowerConnectors
Thefan powerconnectorssupportsystemcooling fanwith+12V.TheCPUFANsupports
SmartFAN function.Whenconnectthewiretotheconnectors,always takenotethat the
redwireisthe positiveand shouldbeconnectedtothe+12V, theblack wireisGround
andshouldbeconnectedtoGND.Ifthe mainboardhasaSystemHardwareMonitor
chipseton-board,youmustuseaspeciallydesigned fanwithspeedsensortotake
advantageofthefan control.
SYSFAN/NB FAN/
POWERFAN
SENSORorNC
+12V
GND
4
IDEconnector
ThisconnectorsupportsIDEharddiskdrives,opticaldisk drivesand otherIDE devices.
6
CPUFAN
SENSOR
+12V
GND
Control
Important
1.Pleaserefertothe recommended CPUfansatprocessor sofficialwebsiteor
consultthe vendorsforproperCPUcooling fan.
2.Fancoolersetwith3or4pinspowerconnectorarebothavailableforCPUFAN.
Important
Ifyou installtwoIDE devicesonthe samecable,youmustconfigurethe drives
separatelytoPrimary/Slavemodebysettingjumpers.RefertoIDEdevice s
documentationsuppliedbythevendorsforjumpersetting instructions.

En-10
MS-7255Mainboard
FrontPanelConnectors
Theseconnectorsareforelectricalconnection tothefrontpanelswitchesandLEDs.
TheJFP1iscompliantwithIntel®Front PanelI/OConnectivityDesign Guide.
1
2
9
10
HDD
LED
Reset
Switch
Power
LED
Power
Switch
JFP1 JFP2
7
8
PowerLED
Speaker
1
2
IEEE1394 Connector(Green)
ThisconnectorallowsyoutoconnecttheIEEE1394deviceviaanoptionalIEEE1394
bracket.
8
9
SerialATAConnector
Thisconnectorisahigh-speedSerialATAinterfaceport. Eachconnectorcanconnectto
oneSerialATAdevice.
7
Important
Pleasedonot foldthe SerialATAcableinto90-degreeangle.Otherwise,data
loss mayoccurduring transmission.
1 2
910
TPA+
Ground
TPB+
Cablepower
Key(no pin)
TPA-
Ground
TPB-
Cablepower
Ground
IEEE1394Bracket
(Optional)

En-11
InstallationGuide
English
S/PDIF-OutConnectororS/PDIF-InConnector
ThisconnectorisusedtoconnectS/PDIF(Sony&PhilipsDigitalInterconnectFormat)
interfacefordigitalaudiotransmission.
Connected toSPDIF-out/
SPDIF-inconnector
SPDIFBracket (Optional)
FrontUSBConnector(Yellow)
Thisconnector,compliantwithIntel®I/OConnectivityDesign Guide,isidealforcon-
necting high-speedUSB interfaceperipheralssuchas USBHDD, digitalcameras, MP3
players, printers, modemsandthelike.
SPDIF_In
VCC
SPDIF_in
GND
SPDIF_Out
VCC
SPDIF_out
GND
USBOC
10
1 2
VCC
USB0-
USB0+
GND
Key(no pin)
VCC
USB1-
USB1+
GND
9
Important
Notethatthepinsof VCCandGND mustbeconnectedcorrectlytoavoidpossible
damage.
10
FrontPanelAudioConnector(AzaliaSpec)
Thisconnectorallowsyoutoconnect thefrontpanelaudioand iscompliantwithIntel®
FrontPanelI/OConnectivityDesignGuide.
11
12
12
910
MIC _L
MIC_R
LINEout_R
Front_JD
LINEout_L
Ground
Presence#
MIC_JD
NC(Nopin)
LINEout_JD
USB2.0Bracket
(Optional)

En-12
MS-7255Mainboard
CD-InConnector
Thisconnectorisprovided forexternalaudioinput.
ChassisIntrusionConnector
Thisconnectorconnectstothechassisintrusionswitchcable.Ifthechassisisopened,
thechassisintrusion mechanismwillbeactivated. Thesystemwill recordthisstatusand
showawarning message onthescreen. Toclearthewarning,youmustentertheBIOS
utilityandcleartherecord.
GND R
L
FrontPanelAudioConnector(AC97 Spec)
Thisconnectorallowsyoutoconnect thefrontpanelaudioand iscompliantwithIntel®
FrontPanelI/OConnectivityDesignGuide.
15
12
910
AUD_MIC
AUD_MIC_BIAS
AUD_FPout_R
HP_ON
AUD_FPout_L
AUD_GND
AUD_VCC
AUD_RET_R
Key
AUD_RET_L
13
Important
Ifyou don twanttoconnecttothe frontaudioheader,pins5&6,9&10have
tobe jumperedinordertohavesignaloutputdirectedtothe rearaudioports.
Otherwise,theLine-Outconnectoron the backpanelwillnotfunction.
14
1
2
CINTRU
GND