Lenovo IdeaCentre B750 All-in-One Bedienungsanleitung PDF herunterladen (Seite 52)

Step9.Disconnectthefanpowercablefromthemotherboard.

Step10.Removethethreescrewsthatsecurethesystemfantotheheat-sink1andliftthesystemfanup

toremoveit.2

Step11.Toinstallthenewsystemfan:

a.Placethenewsystemfanintoposition,andsecureitwiththethreescrews.

b.Connectthefanpowercablestotheconnectoronthemotherboard.

Step12.ReattachtheEMIcover,middlecover,opticaldrive,computerstandandtherearcover.

Replacingtheheat-sink

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches

orotherdamage.

Toreplacetheheat-sink:

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)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” .

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Lenovo IdeaCentre B750 All-in-One Bedienungsanleitung Seite 52