Specifications

Chapter11.Additionalserviceinformation
Thischapterprovidesadditionalinformationthattheservicerepresentativemightfindhelpful.
Securityfeatures
Securityfeaturesinthissectionincludethefollowing:
•Passwords
•VitalProductData
•ManagementInformationFormat(MIF)
Hardware-controlledpasswords
Hardware-controlledpasswordsaresetusingtheSetupUtilityprogram.Formoreinformationabout
passwords,see“Usingpasswords”onpage55.
Operatingsystempassword
Anoperatingsystempasswordisverysimilartoapower-onpasswordanddeniesaccesstothecomputer
byanunauthorizeduserwhenthepasswordisactivated.Thecomputerisunusableuntilthepasswordis
enteredandrecognizedbythecomputer.
Vitalproductdata
EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryonthesystem
board.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,see“Updating
(flashing)theBIOS”onpage127.
BIOSlevels
AnincorrectlevelofBIOScancausefalseerrorsandunnecessaryFRUreplacement.Usethefollowing
informationtodeterminethecurrentlevelofBIOSinstalledinthecomputer,thelatestBIOSavailableforthe
computer,andwheretoobtainthelatestlevelofBIOS.
•TodeterminethecurrentLevelofBIOS:
–StarttheSetupUtilityprogram.
•SourcesforobtainingthelatestlevelBIOSavailable
1.Lenovosupportwebsite:http://www.lenovo.com/support
2.LenovoCustomerSupportCenter
3.Levels1and2Support
Toupdate(flash)theBIOS,see“Updating(flashing)theBIOS”onpage127.
Note:BIOSsettingsvarybyoperatingsystem.ChangetheBIOSsettingsbeforeinstallinganewoperating
system.See“ChangingtheBIOSsettingsbeforeinstallinganewoperatingsystem”onpage59.
Updating(flashing)theBIOS
ThissectionprovidesinstructionsonhowtoupdatetheBIOSforyourcomputer.
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