Computer Hardware User Manual

Chapter10.Additionalserviceinformation

Thischapterprovidesadditionalinformationthattheservicerepresentativemightndhelpful.

Securityfeatures

Securityfeaturesinthissectionincludethefollowing:

•Passwords

•VitalProductData

Hardwarecontrolledpasswords

UsetheSetupUtilityprogramtosetthehardwarecontrolledpasswords.Formoreinformationabout

passwords,see“Usingpasswords”onpage41

Operatingsystempassword

Anoperatingsystempasswordisverysimilartoapower-onpasswordanddeniesaccesstothecomputerby

anunauthorizeduserwhenthepasswordisactivated.Thecomputerisunusableuntilthecorrectpassword

isenteredandrecognizedbythecomputer.

VitalProductData

EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryonthesystem

board.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,see“Updating

(ashing)BIOSfromadisc”onpage99.

BIOSlevels

AnincorrectlevelofBIOScancausefalseerrorsandunnecessaryFRUreplacement.Usethefollowing

informationtodeterminethecurrentlevelofBIOSinstalledinthecomputer,thelatestBIOSavailableforthe

computer,andwheretoobtainthelatestlevelofBIOS.

•TodeterminethecurrentlevelofBIOS:

–StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage41

–SeeBIOSRevisionLevelontheMainsetupscreen.

•SourcesforobtainingthelatestlevelBIOSavailable

1.Lenovosupportwebsite:http://www.lenovo.com/support

2.LenovoCustomerSupportCenter

3.Levels1and2Support

Toupdate(ash)theBIOS,see“Updating(ashing)BIOSfromadisc”onpage99.

Updating(ashing)BIOSfromadisc

Thissectionprovidesinstructionsonhowtoupdate(ash)BIOSfromadisc.Systemprogramupdates

areavailableat:http://www.lenovo.com/support

Toupdate(ash)BIOSfromadisc,dothefollowing:

1.Makesuretheopticaldriveyouwanttouseissetastherstbootdeviceinthestartupdevicesequence.

See“Selectingorchangingthestartupdevicesequence”onpage43