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1、常见AWARD主板诊断卡详细代码Code:FF,00,CO,DO,CF,Fl,ornothingmeantheCPUfailedCl,C6,C3,D3,D4,D6,D8,B0,A7,Elrepresentmemory24,25,26,01,0A,0B,2A,2B,3123,24,25,saidsomeintegratedgraphicsmotherboardcannormallight,someVIAchipsetshowed13saidcanlightlip,someinthename-brandcomputermo
2、therboardshowsObisnormal,somemotherboardshows4esaidnormallight,someINTELmotherboardchipsetshowed26or16cannormallight・ThecombinationcycleofCl,C6,C3,01,and02ismostlyI/0badorswipingtheBIOSIfshownin05,ED,41,directtheBIOS00.YouwillcontroltheINI19bootload.・1processort
3、est1,processorstatusverification,andifthetestfails,theloopisinfinite・Theprocessorregistertestisabouttobegin,andunblockinginterruptswillbesuspended・TheCPUregistertestisongoingorfailing.Determinethetypeofdiagnosis(normalormanufacturing)・Ifthekeyboardbuffercontains
4、data,itwillfai1.Disablenon-blockinginterrupts:Startwithadelay.CMOSwrite/readisinorout・Remove8042keyboardcontrollerandissuetheTESTKBRDcommand(AAH).ROMBIOScheckpartsareongoingormalfunction.Make8042keyboardcontrollerresetandverifyTESTKBRD・Keyboardcontrollersoftrese
5、t/electricaltest・Programmableintervaltimertestsarebeingperformedorfailed・Ifyourepeatmanufacturingtest1through5,youcanobtain8042controlstatus・Confirmthesoftreset/power;ThebootROM.TheDMAisinoroutoforder・Makethecircuitfilminitialpreparation,disablevideo,odd-even,DM
6、Acircuit,andclearDMAcircuit,allpageregisterandCMOSstopbytes・TheROMBIOSchecksumhasbeenactivatedandthekeyboardbufferischeckedforremovaLTheDMAinitialpageregisterreads/writestestsarebeingperformedorfailed・7processortest2,verifytheCPUregister'swork・ROMBIOSchecksumisn
7、ormal,keyboardbufferhasbeencleared,andBAT(basicguaranteetest)commandsareissuedtothekeyboard・・MaketheCMOStimerastheinitialpreparation,normalupdatetimercycle・TheBATcommandhasbeenissuedtothekeyboardandwillbewrittentotheBATcommand・TheRAMupdatetestisongoingorfailing・
8、The2009EPROMchecksummustbeequaltozero.Verifythebasicguaranteetestforthekeyboard,thenverifythekeyboardcommandbyte・Thefirst64KRAMtestisongoing・0Apreparesthevideointerfa
