5.Laythecomputeronitssideandremovethefourscrewsattherearofthechassisthatsecurethe
powersupplyassembly.
Figure40.Removingthescrewsforthepowersupplyassembly
6.Slidethepowersupplyassemblytothefrontofthecomputer,andthenliftitoutofthechassis.
7.Ensurethatthenewpowersupplyassemblyisthecorrectreplacement.
8.Installthenewpowersupplyassemblyintothechassissothatthescrewholesinthepowersupply
assemblyalignwiththoseinthechassis.
9.Installandtightenthefourscrewstosecurethepowersupplyassembly.
Note:UseonlyscrewsprovidedbyLenovo.
10.Reconnectthepowersupplyassemblycablestothesystemboardandeachofthedrives.
11.Securethepowersupplyassemblycableswiththecableclipsandtiesinthechassis.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage95.
Replacingtheheatsinkandfanassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagev.
Thissectionprovidesinstructionsonhowtoreplacetheheatsinkandfanassembly.
CAUTION:
Theheatsinkandfanassemblymightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
56ThinkCentreM83,M93/pUserGuide
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