•Preventothersfromtouchingthepartsandothercomputercomponents.
•Beforeyoureplaceanewpart,touchthestatic-protectivepackagecontainingthenewparttoametal
expansion-slotcoverorotherunpaintedmetalsurfaceonthecomputerforatleasttwoseconds.This
reducesstaticelectricityfromthepackageandyourbody.
•Removethenewpartfromthestatic-protectivepackageanddirectlyinstallitinthecomputerwithout
placingitonanyothersurface.Ifitishardforyoutodothisinyourspecicsituation,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“Important
safetyinformation”onpage1.
Thissectionprovidesinstructionsonhowtoremovethecomputercover.
CAUTION:
Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
computercover.
Toremovethecomputercover,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallattacheddevicesandthecomputer.
2.Disconnectallpowercordsfromelectricaloutlets.
3.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
74and“Locatingconnectorsontherearofyourcomputer”onpage75.
4.Removeanylockingdevicethatsecuresthecomputercover,suchasapadlockoranintegrated
cablelock.
Chapter8.ReplacingFRUs(MachineTypes:1852,1853,and1855)79
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