Personal Computer User Manual

Step11.Removethe8screwsthatsecuretheheat-sinktothemotherboard,anddetachthecables
attachedtotheheat-sink,thenliftuptheheat-sinktoremoveit.
Step12.Toinstallthenewheat-sink:
a.Lineupthenewheat-sinkwithmountingholesonmotherboardandsecureitwiththe8screws.
b.Lineupthesystemfansupportingbracketwiththemountingholesonthemotherboardand
secureitwiththe2screws.
Step13.Reattachthesystemfan,EMIcover,middlecover,opticaldrive,computerstandandtherearcover.
ReplacingtheCPU
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
ToreplacetheCPU
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removetherearcover.Referto“Removingtherearcover”.
Step5.Removethecomputerstand.Referto“Removingthecomputerstand” .
Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive”.
Step7.Removethemiddlecover.Referto“Removingthemiddlecover”.
Step8.RemovetheEMIcover.Referto“RemovingtheEMIcover”.
Step9.Removethesystemfans.Referto“Replacingthesystemfans” .
Step10.Removetheheat-sink.Referto“Replacingtheheat-sink”.
46IdeaCentreB540–B540PHardwareMaintenanceManual