资源描述：
《检测卡代码故障分析》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、检测卡代码故障分析Therearethreecasesofspecialcode〃00〃and〃ff〃andotherstartingcodes:Ithasbeenfollowedbyaseriesofothercode,〃00"or〃ff〃,andthemotherboardisok.Ifthereisnoerrorintheemossetup,anon-seriousfailurewillnotaffectthecontinuationoftheBIOSselfcheck,andtheendresultwillbe"00〃or〃ff〃・The〃00〃or〃ff〃o
2、r〃ff〃oranyotherstartingcodeisturnedonandthemainboardisnotrunning.Thistableissortedbycodevaluefromsmalltolarge,andthecardisinanuncertainorder・Notlistedintheundefinedcodetable・4,fordifferentBIOS(commonami,award,phoenix)withthesamecodeonbehalfofthemeaningofdifferent,soshouldmakeclearwhatyo
3、udetectcomputerbelongstowhichatypeofBIOS,youcanrefertoyourcomputerusingmanual,ordirectlyfromthemotherboardBIOSchipview,alsocanseedirectlyinthestartupscreen.Thepcislotwithafewmainboardsappearsonlyinpartofthecode,buttheisa.slothasacompleteself-checkoutcodeoutput・Andhasfoundarareoriginalin
4、stalledmotherboardisaslotswithoutcodeoutput,whilethepcislotwithcompletecodeoutput,therefore,itisrecommendedthatyoucheckthecodeisnotsuccessful,willthisdoubleslotcardtoanotherslottotry.Differentpcislotinaddition,thesamemotherboards,someslothavesendthecompletecode,suchasdell810onlyclosetot
5、heCPUmainboard,accordingtoapcislothavecompletecodehasbeenchangeto"00〃or〃ff〃，whileotherpcislotgoafter〃38〃doesnotcontinuetochange・Thetimerequiredfortheresetsignalisnotnecessarilyinsyncwiththepci,soitispossiblethatisaisstartingtocode,butthepcirepositionlightisnotout,sopcicodestopstostartth
6、ecode・ThecodetableTheconfigurationofthesystemisdisplayed;YouwillcontroltheINI19bootload.1processortest1,processorstatusverification,andifthetestfails,theloopisinfinite・Theprocessorregistertestisabouttobegin,andunblockinginterruptswillbesuspended・TheCPUregistertestisongoingorfailing・Dete
7、rminethetypeofdiagnosis(normalormanufacturing)・Ifthekeyboardbuffercontainsdata,itwillfai1.Disablenon-blockinginterrupts:Startwithadelay.CMOSwrite/readisinorout・Remove8042keyboardcontrollerandissuetheTESTKBRDcommand(AAH)・ROMBIOScheckpartsareongoingormalfunction.Make8042keyboardc
