Computer Hardware User Manual

Chapter11.Additionalserviceinformation

Thischapterprovidesadditionalinformationthattheservicerepresentativemightndhelpful.

Securityfeatures

Securityfeaturesinthissectionincludethefollowing:

•Passwords

•VitalProductData

Hardware-controlledpasswords

UsetheSetupUtilityprogramtosetthehardwarecontrolledpasswords.Formoreinformationabout

passwords,see“Usingpasswords”onpage43

Operatingsystempassword

Note:ThissectionappliesonlytocomputermodelsthathaveanoperatingsystempreinstalledfromLenovo.

Anoperatingsystempasswordisverysimilartoapower-onpasswordanddeniesaccesstothecomputerby

anunauthorizeduserwhenthepasswordisactivated.Thecomputerisunusableuntilthecorrectpassword

isenteredandrecognizedbythecomputer.

VitalProductData

EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryonthesystem

board.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,see“Updating

(ashing)theBIOSfromadisc”onpage469.

BIOSlevels

AnincorrectlevelofBIOScancausefalseerrorsandunnecessaryFRUreplacement.Usethefollowing

informationtodeterminethecurrentlevelofBIOSinstalledinthecomputer,thelatestBIOSavailableforthe

computer,andwheretoobtainthelatestlevelofBIOS.

•TodeterminethecurrentlevelofBIOS:

–StarttheSetupUtilityprogram.

–SeeBIOSRevisionLevelontheMainsetupscreen.

•SourcesforobtainingthelatestlevelBIOSavailable

1.Lenovosupportwebsite:

http://www.lenovo.com/support

2.LenovoCustomerSupportCenter

3.Levels1and2Support

Toupdate(ash)theBIOS,see“Updating(ashing)theBIOSfromadisc”onpage469.

Updating(ashing)theBIOSfromadisc

Thissectionprovidesinstructionsonhowtoupdate(ash)theBIOSfromadisc.

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