Lenovo ThinkStation C20 - Updating (Flashing) the BIOS from Your Operating System; Recovering from a POST;BIOS Update Failure

Note:Youcandownloadaself-startingbootablediscimage(knownasanISOimage)withthesystem
programupdatestocreateasystem-program-updatedisc.Goto:http://www.lenovo.com/support
Toupdate(ash)theBIOSfromadisc,dothefollowing:
1.Turnoffyourcomputer.
2.RepeatedlypressandreleasetheF12keywhenturningonthecomputer.WhentheStartupDevice
Menuopens,releasetheF12key.
3.OntheStartupDeviceMenu,selectthedesiredopticaldriveastherstbootdevice.Then,insertthe
discintotheopticaldriveandpressEnter.Theupdatebegins.
4.Whenpromptedtochangetheserialnumber,itissuggestedthatyoupressN.However,ifyoudowant
tochangetheserialnumber,pressY,thentypeintheserialnumberandpressEnter.
5.Whenpromptedtochangethemachinetypeandmodel,itissuggestedthatyoupressN.However,if
youdowanttochangethemachinetypeandmodel,pressY,thentypeinthemachinetypeand
modelandpressEnter.
6.Followtheinstructionsonthescreentocompletetheupdate.Aftertheupdateiscompleted,removethe
discfromtheopticaldrive.
Updating(ashing)theBIOSfromyouroperatingsystem
Note:BecauseLenovomakesconstantimprovementstoitsWebsites,theWebpagecontentsaresubject
tochangewithoutnotice,includingthecontentsreferencedinthefollowingprocedure.
Toupdate(ash)theBIOSfromyouroperatingsystem,dothefollowing:
1.Gotohttp://www.lenovo.com/support.
2.Dothefollowingtolocatethedownloadablelesforyourmachinetype:
a.IntheEnteraproductnumbereld,typeyourmachinetypeandclickGo.
b.ClickDownloadsanddrivers.
c.SelectBIOSfromtheReneresultsdrop-downlistboxtoeasilylocatealltheBIOSrelatedlinks.
d.ClicktheBIOSupdatelink.
3.ClicktheTXTlethatcontainstheinstructionsforupdating(ashing)theBIOSfromyouroperating
system.
4.Printtheseinstructions.Thisisveryimportantbecausetheseinstructionswillnotbedisplayedon
thescreenafterthedownloadbegins.
5.Followtheprintedinstructionstodownload,extract,andinstalltheupdate.
RecoveringfromaPOST/BIOSupdatefailure
IfpowertoyourcomputerisinterruptedwhilethePOST/BIOSisbeingupdated(ashupdate),your
computermightnotrestartcorrectly.Ifthishappens,performthefollowingprocedurecommonlycalled
Boot-blockRecovery.
1.Turnoffthecomputerandanyattacheddevices,suchasprinters,monitors,andexternaldrives.
2.Unplugallpowercordsfromelectricaloutlets,andremovethecomputercover.See“Removingthe
computercover”onpage74.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage75.
4.RemovethePCIcardholder.See“RemovingandreinstallingthePCIcardholder”onpage76.
5.LocatetheClearCMOS/Recoveryjumperonthesystemboard.See“Locatingpartsandconnectorson
thesystemboard”onpage71.
6.RemoveanycablesthatimpedeaccesstotheClearCMOS/Recoveryjumper.
230ThinkStationHardwareMaintenanceManual