Lenovo B50-35 All in One Bedienungsanleitung PDF herunterladen (Seite 45)

Step17.Useathermalgreasesyringetoplace5dropsofgreaseonthetopofthemicroprocessor.Each

dropofgreaseshouldbe0.03ml(3tickmarksonthegreasesyringe).

Step18.Reattachtheheat-sink,EMIcover,middlecover,opticaldrive,standholder,footcoverandstand

base.

Replacingthesystemfan

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftﬂatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches

orotherdamage.

Toreplacethesystemfan

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.Removethestandbase.Referto“Removingthestandbase” .

Step5.Removethefootcover.Referto“Removingthefootcover” .

Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .

Step7.Removethestandholder.Referto“Removingthestandholder”.

Step8.Removethemiddlecover.Referto“Removingthemiddlecover” .

Step9.RemovetheEMIcover.Referto“RemovingtheEMIcover” .

Step10.Removethesealingtapebetweenthesystemfanandheat-sink.

Step11.Removethethreescrewsthatsecurethesystemfantothechassis.

Step12.Disconnectthepowercablefromthemotherboard.

Step13.Liftupthesystemfantoremoveit.

Step14.Toinstallthenewsystemfan:

Chapter7.Replacinghardware39

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Lenovo B50-35 All in One Bedienungsanleitung Seite 45