User's Manual

ManualsBrandsIBM ManualslaptopsIBM IBM Laptop W520

Table1.FRUtests(continued)

FRUApplicabletest

EntertheThinkPadSetupandchangeSerialATA(SATA)settingtoCompatibility,and

runDiagnostics➙FixedDisks

Harddiskdriveorsolidstate

drive

Youcanalsodiagnosethedrivewithoutstartinguptheoperatingsystem.Todiagnose

thedrivefromtheThinkPadSetup,doasfollows:

1.Removeanydiskettefromthediskettedrive,andthenturnoffthecomputer.

2.T urnonthecomputer.

3.Whilethemessage,“Tointerruptnormalstartup,presstheblueThinkVangate

button,”isdisplayedatthelowerleftofthescreen,pressF1toentertheThinkPad

Setup.

4.Usingcursorkeys,selectHDDdiagnosticprogram.Pressenter.

5.Usingcursorkeys,selectMainharddiskdriveorUltrabayharddiskdrive.

6.PressEntertostartthediagnosticprogram.

Diskettedrive1.Diagnostics➙DisketteDrives

2.InteractiveTests➙Diskette

Opticaldrive1.Diagnostics➙OtherDevices➙OpticalDrive

2.InteractiveTests➙OpticalDriveTest

Memory

1.IftwoDIMMsareinstalled,removeoneofthemandrunDiagnostics➙System

Memory.

2.Iftheproblemdoesnotrecur,returntheDIMMtoitsplace,removetheotherone,

andrunthetestagain.

TrackPointorpointing

device

IftheTrackPointdoesnotwork,checkthecongurationasspeciedintheThinkPad

Setup.IftheT rackPointisdisabled,selectAutomatictoenableit.

AfteryouusetheTrackPoint,thepointermaydriftonthescreenforashorttime.This

driftcanoccurwhenaslight,steadypressureisappliedtotheTrackPointpointer.

Thissymptomisnotahardwareproblem.Ifthepointerstopsafterashorttime,no

serviceactionisnecessary.

IfenablingtheTrackPointdoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveTests➙Mouse

TouchPad

IftheTouchPaddoesnotwork,checkthecongurationasspeciedintheThinkPad

Setup.IftheT ouchPadisdisabled,selectAutomatictoenableit.Ifenablingthe

TouchPaddoesnotcorrecttheproblem,continuewiththefollowing:

•InteractiveTests➙Mouse

Powersystemcheckout

Toverifyasymptom,dothefollowing:

1.T urnoffthecomputer.

2.Removethebatterypack.

3.Connecttheacadapter.

4.Checkthatpowerissuppliedwhenyouturnonthecomputer.

5.T urnoffthecomputer.

6.Disconnecttheacadapterandinstallthechargedbatterypack.

7.Checkthatthebatterypacksuppliespowerwhenyouturnonthecomputer.

Ifyoususpectapowerproblem,seetheappropriateoneofthefollowingpowersupplycheckouts:

•Checkingtheacadapter

•Checkingoperationalcharging

•Checkingthebatterypack

•Checkingthebackupbattery

32ThinkPadT520,T520i,andW520HardwareMaintenanceManual