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1、光驱常见故障分析CommontroubleanalysisofCDdriverAt21:37onOctober15,2005Afterafailure,thesystemcannotfindthedriveintotheCD-ROMfaultphenomenon:todetectCD-ROMsystemself,butfoundnoCD-ROMdriveundertheWindowsoperatingsystem・Faultanalysis:thereareseveralpossibilitiesforthissituation:inthesafemodeintotheoperatings
2、ystem,themachineinfectedwiththevirus,WindowsoperatingsystemcomeswithCD-ROMdriverfailure・Solution:sincetheoperatingsysteminsafemodedoesnotloadanydrivers,itisnormaltonotfinddrive.Hereweonlysaytwo,ifyouexcludetheviruscausesalsocannotfindCD-ROMletterwords,canusethefollowingtwomethods:first,accesscontr
3、olpanel,select"addnewhardware",thenfollowthepromptstostepdown,whenthesystemcheck,usuallycanbefoundCD-ROM:twointothecontrolpanel,select"devicemanager/z,whichwillbethe"harddiskcontroller^deleteditems,andthenrestartyourcomputer・BecauseofCD-ROMandharddiskusingthesamecontroller,soastoremoveitandwillbei
4、dentifiedautomaticallyrestartafterthegeneralwillbeabletoretrievetheCD-ROMletter;three,ifnotmorethan,candriveCD-ROMinDOSmode,suchasloadingauniversalCD-ROMdriverIDE.SYS;onelasttrickistoban32apatternintheperformaneeoptionsontheWin98,butthisisattheexpenseoftheperformanceofthesystemtosolvetheproblem.Fa
5、ulttwo,afterinstallingCD-ROM,affectthespeedoftheharddiskFaultphenomenon:acompatiblemachineaftertheinstallationofCD-ROM,andfoundthatwhentheCD-ROMdiskread,theharddiskTunningspeedslowdown,andeveniftheCD-ROMdoesnotputthedisk,theharddiskrunningprocedures,therewillbeastandstil1.Faultanalysis:initiallyco
6、ncludedthattheharddiskanddriveareconnectedwiththesamedataline,andsharedIDE1interfacefailure.BecausethecurrentharddiskusestheATA66andATA100interfacetechnology,butthedrivehasbeenusingtheATA33interface,datatransmissionspeedandtheharddiskistoofarfromeachother・Whenconnectedtothesamedataline,duetothehar
7、ddiskperformanceistoohigh,forcingthesystemtoprefetchCD-ROMreferredtotheoverallrunningspeed,resultingintheharddiskspeedslow.Thesolutionistoconnecttheharddiskwiththedrivediskwiththemissingdataline,eachofwhichtakeso
