Computer Hardware User Manual

Whenyouhandlecomputerpartsandcomponents,taketheseprecautionstoavoidstatic-electricitydamage:

•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.

•Alwayscarefullyhandlethepartsandothercomputercomponents.HandlePCIcards,memorymodules,

systemboards,andmicroprocessorsbytheedges.Nevertouchexposedcircuitry.

•Preventothersfromtouchingthepartsandothercomputercomponents.

•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingthenewparttoametal

expansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwoseconds.This

reducesstaticelectricityfromthepackageandyourbody.

•Removethenewpartfromthestatic-protectivepackageanddirectlyinstallitinthecomputerwithout

placingitonanyothersurface.Ifitishardforyoutodothisinyourspecicsituation,placethe

static-protectivepackageofthenewpartonasmooth,levelsurface,andthenplacethenewparton

thestatic-protectivepackage.

•Donotplacethepartonthecomputercoverorothermetalsurface.

Installingorreplacinghardware

Thissectionprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.Youcanexpand

thecapabilitiesofyourcomputerandmaintainyourcomputerbyinstallingorreplacinghardware.

Attention:

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:

http://www.lenovo.com/ThinkCentreUserGuides

Notes:

1.UseonlycomputerpartsprovidedbyLenovo.

2.Wheninstallingorreplacinganoption,usetheappropriateinstructionsinthissectionalongwiththe

instructionsthatcomewiththeoption.

Removingthecomputercover

Attention:

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:

http://www.lenovo.com/ThinkCentreUserGuides

Thissectionprovidesinstructionsonhowtoremovethecomputercover.

CAUTION:

Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe

computercover.

Toremovethecomputercover,dothefollowing:

1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.

2.Disconnectallpowercordsfromelectricaloutlets.

3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe

computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage

and“Locatingconnectorsontherearofyourcomputer”onpage75.

Chapter8.ReplacingFRUs(MachineTypes:4468,4473,4476,4479,4495,4497,4499,4504,4513,4517,4524,

7021,7032,7034,7049,7052,7053,7073,7136,and7178.)79