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首页 atx主板尺寸定义

atx主板尺寸定义

atx主板尺寸定义

HAEVEN
2011-10-27 0人阅读 举报 0 0 暂无简介

简介:本文档为《atx主板尺寸定义pdf》,可适用于IT/计算机领域

ATXSpecificationVersionATXSpecificationVersionPageIMPORTANTINFORMATIONANDDISCLAIMERSINTELCORPORATIONMAKESNOWARRANTIESWITHREGARDTOTHISATXSPECIFICATION(“SPECIFICATION”),ANDINPARTICULARDOESNOTWARRANTORREPRESENTTHATTHISSPECIFICATIONORANYPRODUCTSMADEINCONFORMANCEWITHITWILLWORKINTHEINTENDEDMANNERNORDOESINTELASSUMERESPONSIBILITYFORANYERRORSTHATTHESPECIFICATIONMAYCONTAINORHAVEANYLIABILITIESOROBLIGATIONSFORDAMAGESINCLUDING,BUTNOTLIMITEDTO,SPECIAL,INCIDENTAL,INDIRECT,PUNITIVE,ORCONSEQUENTIALDAMAGESWHETHERARISINGFROMORINCONNECTIONWITHTHEUSEOFTHISSPECIFICATIONINANYWAYNOREPRESENTATIONSORWARRANTIESAREMADETHATANYPRODUCTBASEDINWHOLEORINPARTONTHEABOVESPECIFICATIONWILLBEFREEFROMDEFECTSORSAFEFORUSEFORITSINTENDEDPURPOSEANYPERSONMAKING,USINGORSELLINGSUCHPRODUCTDOESSOATHISORHEROWNRISKTHEUSEROFTHISSPECIFICATIONHEREBYEXPRESSLYACKNOWLEDGESTHATTHESPECIFICATIONISPROVIDEDASIS,ANDTHATINTELCORPORATIONMAKESNOREPRESENTATIONS,EXTENDSNOWARRANTIESOFANYKIND,EITHEREXPRESSORIMPLIED,ORALORWRITTEN,INCLUDINGANYWARRANTYOFMERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE,ORWARRANTYORREPRESENTATIONTHATTHESPECIFICATIONORANYPRODUCTORTECHNOLOGYUTILIZINGTHESPECIFICATIONORANYSUBSETOFTHESPECIFICATIONWILLBEFREEFROMANYCLAIMSOFINFRINGEMENTOFANYINTELLECTUALPROPERTY,INCLUDINGPATENTS,COPYRIGHTANDTRADESECRETSNORDOESINTELASSUMEANYOTHERRESPONSIBILITIESWHATSOEVERWITHRESPECTTOTHESPECIFICATIONORSUCHPRODUCTSANONEXCLUSIVECOPYRIGHTLICENSEISHEREBYGRANTEDTOREPRODUCETHISSPECIFICATIONFORANYPURPOSEPROVIDEDTHIS“IMPORTANTINFORMATIONANDDISCLAIMERS”SECTION(PARAGRAPHS)ISPROVIDEDINWHOLENOOTHERLICENSE,EXPRESSORIMPLIED,BYESTOPPELOROTHERWISE,TOANYOTHERINTELLECTUALPROPERTYRIGHTSISGRANTEDHEREINIntelisatrademarkorregisteredtrademarkofIntelCorporationoritssubsidiariesintheUnitedStatesandothercountries*OthernamesandbrandsmaybeclaimedaspropertyofothersCopyrightIntelCorporationATXSpecificationVersionPageRevisionHistoryChangesfromVersiontoVersionGlobalchangeremovedATXinATXATXVPowerSupplyDesignGuideImportantInformationandDisclaimersupdatedSectionMainPowerConnectorchangedfrompintopintosupportPCIExpress*requirementsSectionRemovedAuxPowerConnectorRecommendationifusingapowersupplydesignedusingATXVPowerSupplyDesignGuideRevorgreaterSectionUpdateVtoleranceChangesfromVersiontoVersionGlobalchangeRemovedreferencestoMiniATXSectionReplaceexistingtextwithnewtextthataddsrequirementforATXVconnectorsubstituterevisedFigureSectionAddATXVpowerconnectorinformationtoTableSectionReplaceexistingtextwithnewtextthatincludestheVrequirementforprocessorvoltageregulatorsSectionMovedtextinSectionunderanewsubheading,Addedsubheading,,tospecifysecondarysideheightconstraintsRevisedFiguretoreflectanincreaseinthemaximumcomponentheightrestrictionZonesC,D,andEformerlyspecifiedthreedifferentheightrestrictionsThisrevisionreplacesthosethreezones(C,D,andE)withonemaximumcomponentheightrestrictionzone(C)fortheentireregionAddedtwosentencesattheendofthenotethatfollowsFigureSectionReplaceexistingtextwithnewtextthataddstheVconnectorandareferencetotheATXATXVPowerSupplyDesignGuideSectionAddreferencestotheATXVconnectorsubstituterevisedFigureSectionAddnewTablethatlistswirecolorcodeforATXVpowersuppliesSectionUpdateWebsiteURLforATXinformationanddocumentdownloadingChangesfromVersiontoVersionReplacedsevenoccurrencesoftheerroneousname“microATX”withthecorrectname“MiniATX”TheerrorwasintroducedaccidentallyinVersionTheMiniATXformfactoris"x"(mmxmmtheMiniATXformfactorreferredtointhisATXSpecificationisNOTthesameasthemicroATXformfactor,whichisdescribedinaseparatespecificationChangesfromVersiontoVersionSectionReplacedFiguresandSectionAddednewsectiontodefineAuxPowerConnectorrenumberedthesubsequentsections,figures,andtablesaccordinglySectionReplacedFiguretobetterexplainthepowersupplytimingSectionCorrectedtwovaluesinTable,VoltageTolerances:VDCandVDCshouldcomplyto±,not±ThischangewasmadetomatchthenewlyreleasedIntelATXPowerSupplyDesignGuide,VersionSectionCorrectedTabletheRsignaliscarriedonPin,andPinisReservedThismatchestheinformationshowninFigureSectionAddedsectiontoprovidetheInternetlocationoftheATXhomepage,foraccesstodocumentswithinformationbeyondtherequirementsofthisATXSpecificationATXSpecificationVersionPageChangesfromVersiontoVersionSectionUpdatedFiguretoreflectrecommendationsimplementedwithVersionSectionModifiedFiguretoclarifymotherboardmountrequirementsSectionUpdatedtableofrequirementstoreflectchangesinthesectionoutlinedbelowSectionRewrotetexttoclarifyrequirementsSectionReducedkeepoutzonerequirementto"(mm)ThischangewasbasedonfeedbackfromchassismanufacturersandisthemostsignificantrequirementchangewithrespecttothechassisSectionAddedrecommendationtoavoidpaintwithinthekeepoutzoneSectionReplacedFiguretoclarifychassisIOaperturerequirementsToleranceswereaddedtodimensionsSectionChangedFiguretodefineconnectorplacementlimitationsonthemotherboardThisisanewrecommendationformotherboarddesignerstoensureclearancebetweenthechassisandmotherboardconnectorsfortheIOshieldSectionModifiedFiguretoremoveredundantdimensions,andremovedFigurecompletelySectionCompletelyredefinedFanCsignaldescription,andremovedFigurecompletelyMinoreditsweremadethroughoutthedocumenttoimprovereadabilityandtocorrectminortypographicalorgrammaticalerrorsChangesfromVersiontoVersionSectionChangedtheoptionalmountingholetoarequiredholeinchassisimplementationsChangedapreviouslyrequiredmountingholeto“notneeded”SectionAddedinformationanddrawingtoclarifyIOaperturerequirementsAddedcornerradiusinformationtothespecificationforclaritySectionChangedheightrestrictionstofacilitatefutureprocessorandonboardtechnologiesSectionAddedanexplanationoftheintentregardingthedirectionofairtravelforcoolingRemovedtheexternalfanshownonthedrawingofasuggestedATXpowersupplyAddedacautionaboutexternalpowersupplyfansAddedcommentsanddrawingsforductmountingSectionAddedexplanationsforPSON#,PWROK,VSBpowersupplylinesTheVDCpowerrailandsoftpowercontrolsignalsarebeingchangedtorequiredSectionAddedoptionalpowerconnectorforfancontrol,fanmonitor,IEEEvoltages,andremotevoltsensingSectionAddedasectiontogiveasuggestedcolorcodingforpowersupplywiringSectionAddedasectionsuggestingaventingsolutionforpowersuppliesSectionAddedchassisconsiderationsAddedtablesthroughoutthespecificationforclarificationandeasyreferenceofrecommendedandrequiredfeaturesATXSpecificationVersionPageContentsExecutiveSummaryATXFormfactorOverviewLayoutBoardSizeMountingHolePlacementConnectorPlacementExpansionSlotsPowerInputDiskIOFrontPanelIOBackPanelIOMemorySocketsProcessorHeightConstraintsPrimary(Component)SideHeightConstraintsSecondary(BottomSolder)SideHeightConstraintsPowerDeliveryPowerSupplyConnectorsAuxPowerConnectorforWandWConfigurationsxConnectorPowerSignalControlDefinitionsVoltageTolerancesOptionalPowerConnectorFanMSignalFanCSignalVSenseLineVPinRPinOtherATXChassisConsiderationsVentingPowerSupplyMountingAdditionalInformationATXSpecificationVersionPageFiguresSummaryofATXChassisFeaturesATXandmicroATXFormFactorMountingHolesSampleATXLayoutDiagramChassisBackPanelIOApertureRequirementsMotherboardIOConnectorZoneRecommendationExampleMultimediaIOBackPanelATXMotherboardMaximumComponentHeightRestrictionsATXPowerSupplyConnectorConfigurationxConnectorConfigurationOptionalPowerSupplyConnectorConfigurationSimpleImplementationofaFanMonitorCircuitTablesATXFeatureSummaryMotherboardMountingHoleLocationsConnectorLocationsHeightConstraintsAuxPowerConnectorforHighVorVCurrentConfigurationsVoltageTolerancesATXSpecificationVersionPageExecutiveSummaryATXwasdevelopedasanevolutionoftheBabyATformfactorandwasdefinedtoaddressfourmajorareasofimprovement:enhancedeaseofuse,bettersupportforcurrentandfutureIO,bettersupportforcurrentandfutureprocessortechnology,andreducedtotalsystemcostATXcombinesthebestfunctionalityfromtheformfactorsthatdominatedthecomputerindustryintheearlys:thehighintegrationofLPXandtheexpandabilityofBabyATTheATXformfactorisessentiallyaBabyATmotherboardrotateddegreeswithinthechassisenclosureandprovidinganewmountingconfigurationforthepowersupplyTheprocessorisrelocatedawayfromtheexpansionslots,allowingthemalltoholdfulllengthaddincardsThelongersideoftheboardisusedtohostmoreonboardIOTablesummarizestheATXfeaturesAchangetothesystemformfactorisultimatelyoflittlebenefitifitdoesnotreduceoverallsystemcostATXhasachievedcostreductioninanumberofways:•MaterialcostofcablesandaddincardsisreducedbecausemoreIOcanbeintegrateddownontotheboardandbecausetheharddriveandfloppyconnectorscanbebetterpositioned,allowingtheuseofshortercables•AnotherbenefitofintegratedIOdownisthepotentialforlowerEMIemissionswiththeremovalofserialandparallelcablesthatcanactlikeantennas•Manufacturingtimeandinventoryholdingcostsarereducedbecausethenumberofcablesinthesystemisreduced•Videoplaybackenhancedgraphicsandaudio,themainhardwarebuildingblockstosupportmultimedia,arebecomingastandardonmanyPCsattheentrylevel,thesefeaturesarequicklybecomingacommodityToreducecostinahighlydollarsensitivemarketsegment,itmakessensetomigratethesefeaturesdowntothemotherboarditselfTheATXspecificationiswrittenasanopenspecificationfortheindustry,designedtoaddvaluetoPCarchitectureTableATXFeatureSummaryFeatureBenefitDoubleheightflexibleIOpanelallowshigherintegrationLowersystemcostFewercablesImprovedreliabilityShorterassemblytimeSupportforconnectivityandIOstandardslikeUSB,TVinout,ISDN,etcIntegratedgraphicsallowsuseofunifiedframebufferarchitectureRelocateddriveIOmeansshortercablesReducedcostSupportforfasterdrivessuchasPIOModeIDEdrivesRelocatedprocessorandmemoryAllfulllengthexpansionslotsEaseofuse,upgradingtheprocessorEaseofuse,upgradingmemoryEaseofuse,addingcardsRelocatedprocessorallowseasieruseofbulkcapacitanceandvoltageregulationcircuitryATXSpecificationVersionPageATXFormfactorOverviewTheATXformfactorallowsforprocessorrelocationawayfromtheexpansionslots,allowingthelongersideoftheboardtobeusedtohostmoreonboardIOForprocessorvoltageregulatorsthathavebeendesignedforVinput,anadditionalVpowerconnectormustbeaddedATXpowersupplieswiththerequiredVcurrentandassociatedconnectoraredesignated"ATXV"TheATXVmatingconnectorisshowninFigureDetailsonthepowersupplycanbefoundintheATXVPowerSupplyDesignGuide(seeSectionforURLfromwhichthedocumentcanbedownloaded)PSU(Withfan)FullLengthCardSlotsFloppyIDEconnectorsclosetoperipheralbaysSinglepowerconnectorEasytoaccessmemorymodulesCPUlocatednearpowersupply”Bay”BayCPUDoubleHighExpandableIOSystemfanVConnectornexttoVoltageRegulatorFigureSummaryofATXChassisFeaturesATXSpecificationVersionPageLayoutThefollowingsectionsdescribethemechanicalspecificationoftheATXformfactormotherboard,includingphysicalsize,mountingholeplacement,connectorplacement,andcomponentheightconstraintsBoardSizeAfullsizeATXboardis"wideby"deep(mmxmm)ThisallowsmanyATXformfactorchassistoacceptmicroATXboardsaswellMountingHolePlacementTableMotherboardMountingHoleLocationsFeatureStatusCommentMotherboardmountingholelocationsRequiredSeeFigureforanoverviewandFigureforexactlocationsAllATXboardmountinglocationsshownshouldbeimplementedforfullATXcomplianceWherepossible,theATXmountingholeslineupwithmountingholesusedformicroATXboardsThreeholeshavebeendefinedtoprovidemechanicalsupportalongthefrontedgeofthefullsizeATXboard•FigureshowstherelativeoutlinesoftheATXandmicroATXboardsThisfigureuseslettercalloutstoshowthegenerallocationofthemountingholesfortheATXandmicroATXformfactorsTheaccompanyingtableindicateswhichholesarerequiredforeachformfactor•Figureshowstheexactlocation(dimensions

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