Lenovo ThinkCentre E73z - Intermittent Problems; Keyboard, Mouse, or Pointing Device Problems

Chapter8.Updatingsystemprograms
ThischapterprovidesinformationaboutupdatingthePOSTandBIOS,andhowtorecoverfromaPOST
andBIOSupdatefailure.
Usingsystemprograms
Systemprogramsarethebasiclayerofsoftwarebuiltintoyourcomputer.Systemprogramsincludethe
POST,theBIOS,andtheSetupUtilityprogram.ThePOSTisasetoftestsandproceduresthatare
performedeachtimeyouturnonyourcomputer.TheBIOSisalayerofsoftwarethattranslatesinstructions
fromotherlayersofsoftwareintoelectricalsignalsthatthecomputerhardwarecanexecute.Youcanuse
theSetupUtilityprogramtovieworchangetheconfigurationsettingsofyourcomputer.SeeChapter7
“UsingtheSetupUtilityprogram”onpage47
fordetailedinformation.
Yourcomputersystemboardhasamodulecalledelectricallyerasableprogrammableread-onlymemory
(EEPROM,alsoreferredtoasflashmemory).YoucaneasilyupdatethePOST,theBIOS,andtheSetup
Utilityprogrambystartingyourcomputerwithasystem-program-updatediscorrunningaspecialupdate
programfromyouroperatingsystem.
LenovomightmakechangesandenhancementstothePOSTandBIOS.Whenupdatesarereleased,they
areavailableasdownloadablefilesontheLenovoWebsiteathttp://www.lenovo.com.Instructionsforusing
thePOSTandBIOSupdatesareavailableinaTXTfilethatisincludedwiththeupdatefiles.Formost
models,youcandownloadeitheranupdateprogramtocreateasystem-program-updatediscoranupdate
programthatcanberunfromtheoperatingsystem.
Updating(flashing)theBIOSfromadisc
Thissectionprovidesinstructionsonhowtoupdate(flash)theBIOSfromadisc.
Note:Youcandownloadaself-startingbootablediscimage(knownasanISOimage)withthesystem
programupdatestocreateasystem-program-updatedisc.Goto:
http://www.lenovo.com/support
Toupdate(flash)theBIOSfromadisc,dothefollowing:
1.Turnoffyourcomputer.
2.RepeatedlypressandreleasetheF12keywhenturningonthecomputer.WhentheStartupDevice
Menuwindowopens,releasetheF12key.
3.FromtheStartupDeviceMenuwindow,selectthedesiredopticaldriveasthestartupdevice.Then,
insertthediscintothisopticaldriveandpressEnter.Theupdatebegins.
4.Whenpromptedtochangetheserialnumber,itissuggestedthatyoudonotmakethischangeby
pressingN.However,ifyoudowanttochangetheserialnumber,pressY,thentypeintheserialnumber
andpressEnter.
5.Whenpromptedtochangethemachinetypeandmodel,itissuggestedthatyoudonotmakethis
changebypressingN.However,ifyoudowanttochangethemachinetypeandmodel,pressY,then
typeinthemachinetypeandmodelandpressEnter.
6.Followtheinstructionsonthescreentocompletetheupdate.Aftertheupdateiscompleted,removethe
discfromtheopticaldrive.
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