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Chapter5.Updatingsystemprograms

ThischapterprovidesinformationaboutupdatingthePOSTandBIOS,andhowtorecoverfromaPOST

andBIOSupdatefailure.

Thischaptercontainsthefollowingtopics:

•“Usingsystemprograms”onpage59

•“Updating(ashing)theBIOSfromadisc”onpage59

•“Updating(ashing)theBIOSfromyouroperatingsystem”onpage60

•“RecoveringfromaPOSTandBIOSupdatefailure”onpage60

Usingsystemprograms

Systemprogramsarethebasiclayerofsoftwarebuiltintoyourcomputer.Systemprogramsincludethe

POST,theBIOS,andtheSetupUtilityprogram.ThePOSTisasetoftestsandproceduresthatare

performedeachtimeyouturnonyourcomputer.TheBIOSisalayerofsoftwarethattranslatesinstructions

fromotherlayersofsoftwareintoelectricalsignalsthatthecomputerhardwarecanexecute.Youcanuse

theSetupUtilityprogramtovieworchangethecongurationsettingsofyourcomputer.SeeChapter4

“UsingtheSetupUtilityprogram”onpage55

fordetailedinformation.

Yourcomputersystemboardhasamodulecalledelectricallyerasableprogrammableread-onlymemory

(EEPROM,alsoreferredtoasashmemory).YoucaneasilyupdatethePOST,theBIOS,andtheSetup

Utilityprogrambystartingyourcomputerwithasystem-program-updatediscorrunningaspecialupdate

programfromyouroperatingsystem.

LenovomightmakechangesandenhancementstothePOSTandBIOS.Whenupdatesarereleased,they

areavailableasdownloadablelesontheLenovoWebsiteathttp://www.lenovo.com.Instructionsforusing

thePOSTandBIOSupdatesareavailableinaTXTlethatisincludedwiththeupdateles.Formost

models,youcandownloadeitheranupdateprogramtocreateasystem-program-updatediscoranupdate

programthatcanberunfromtheoperatingsystem.

Updating(ashing)theBIOSfromadisc

Thissectionprovidesinstructionsonhowtoupdate(ash)theBIOSfromadisc.

Note:Y oucandownloadaself-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,selectthedesiredopticaldriveasthestartupdevice.Then,insertthe

discintothisopticaldriveandpressEnter.Theupdatebegins.

4.Whenpromptedtochangetheserialnumber,itissuggestedthatyoudonotmakethischangeby

pressingN.However,ifyoudowanttochangetheserialnumber,pressY,thentypeintheserialnumber

andpressEnter.

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Lenovo 104 Bedienungsanleitung Seite 67