3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage122.
4.Pivotthedrivebayassemblyupward.See“Accessingthesystemboardcomponentsanddrives”on
page124.
5.DisconnectthefrontaudioandUSBassemblycablesfromthesystemboard.See“Locatingpartson
thesystemboard”onpage81.
Note:Makesureyounotethelocationsofthecableswhenyoudisconnectthecablesfromthesystem
board.
6.RemovethescrewthatsecuresthefrontaudioandUSBassemblybrackettothechassistoremove
thebracketfromthechassis.
Figure91.RemovingthefrontaudioandUSBassembly
7.InstallthenewfrontaudioandUSBassemblybracketintothechassisandalignthescrewholeinthe
bracketwiththecorrespondingholeinthechassis.
8.Installthescrewtosecurethebrackettothechassis.
9.PivotthedrivebayassemblyupwardandreconnectthefrontUSBandfrontaudiocablestothesystem
board.See“Locatingpartsonthesystemboard”onpage81.
10.Lowerthedrivebayassembly.See“Accessingthesystemboardcomponentsanddrives”onpage124.
11.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage122.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage160
.
ReplacingtheWiFiunits
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpage1.
ThissectionprovidesinstructionsonhowtoreplacetheWiFiunits.TheWiFiunitsincludeaWiFiadapter
card,aWiFicardmodule,andarearWiFiantennacable.
Chapter10.ReplacingFRUs(machinetypes:3377,3386,and3388)151