Personal Computer User Manual

9.Followthefollowingsequencetoinstallthefourscrewstosecureeachnewheatsinkandfanassembly.
Donotover-tightenthescrews.
a.Partiallytightenscrew1,thenfullytightenscrew2,andthenfullytightenscrew1.
b.Partiallytightenscrew3,thenfullytightenscrew4,andthenfullytightenscrew3.
10.Connecttheheatsinkandfanassemblycablestothemicroprocessorfanconnectorsonthesystem
board.See“Locatingpartsonthesystemboard”onpage10.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage56.
Replacingtheharddiskdrivefanassembly
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Important
safetyinformation”onpagev
.
Thissectionprovidesinstructionsonhowtoreplacetheharddiskdrivefanassembly.
Toreplacetheharddiskdrivefanassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage30.
3.Disconnecttheharddiskdrivefanassemblycablefromthesystemboard.See“Locatingpartsonthe
systemboard”onpage10.
4.Removeanypartsthatmightpreventyouraccesstotheharddiskdrivefanassembly.Dependingon
yourcomputermodel,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccessto
theharddiskdriveassembly.See“InstallingorreplacingaPCIcard”onpage32
.
Chapter5.Installingorreplacinghardware45