Wheninstallinganexternaloption,see“Locatingconnectors,controls,andindicatorsonthefrontofyour
computer”onpage75and“Locatingconnectorsontherearofyourcomputer”onpage76toidentifythe
requiredconnector.Then,usetheinstructionsthatcomewiththeoptiontohelpyoumaketheconnection
andinstallanysoftwareordevicedriversthatarerequiredfortheoption.
Removingthecomputercover
CAUTION:
Turnoffthecomputerandwaitthreetoveminutestoletthecomputercoolbeforeremovingthe
computercover.
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheSafety,Warranty,andSetupGuidethatcamewithyourcomputer.ToobtainacopyoftheSafety,Warranty,and
SetupGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoremovethecomputercover.
Toremovethecomputercover,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Disconnectthepowercords,Input/Outputcables,andanyothercablesthatareconnectedtothe
computer.See“Locatingconnectors,controls,andindicatorsonthefrontofyourcomputer”onpage
75
and“Locatingconnectorsontherearofyourcomputer”onpage76.
3.Removeanylockingdevicethatsecuresthecomputercover,suchasapadlockoraKensington-style
cablelock.
4.Removethetwoscrewsthatsecurethecomputercoverandslidethecomputercovertotherearto
removeit.
Figure59.Removingthecomputercover
126ThinkCentreE93HardwareMaintenanceManual
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