1.Releasetheleversecuringthemicroprocessorretainerandopentheretainertoaccessthe
microprocessor.
2.Graspthemicroprocessoronthesidesandliftitstraightupandoutofthesocket.Donottouchthe
contactsonthemicroprocessorsocket.
3.Lowerthemicroprocessorretainer,andthenlowerthelevertosecuretheretainer.Makesurethe
leverislockedintoposition.
4.Notetheorientationofthesocketcover,andinstallonesideofthesocketcoverintothemicroprocessor
socket.
Figure26.Installingonesideofthesocketcoverintothemicroprocessorsocket
Note:Yourmicroprocessorsocketandcovermightlookslightlydifferentfromtheillustration.
5.Carefullypresstheothersideofthesocketcoverdownwarduntilthesocketcoversnapsintoposition.
6.Carefullycheckthefourcornersofthesocketcovertomakesurethatthecoverissecuredinthe
microprocessorsocket.
7.Followanyadditionalinstructionsincludedwiththereplacementpartyoureceived.
Replacingtheprimaryharddiskdrive
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheUserGuide.ToobtainacopyoftheUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacetheprimaryharddiskdrive.
Toreplacetheprimaryharddiskdrive,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage72.
3.Locatetheprimaryharddiskdrive.See“Locatinginternaldrives”onpage69.
Note:Thereisalsoasecondaryharddiskdrivebayforyoutopurchaseandinstallasecondaryhard
diskdrivebyyourself.Ifyouwanttoinstallasecondaryharddiskdrive,usethesamewayofinstalling
theprimaryharddiskdrive.
4.Disconnectthesignalcableandthepowercablefromtheharddiskdrive.
5.Removethefourscrewsthatsecuretheharddiskdrive.Then,slidetheharddiskdriveoutofthechassis.
90LenovoH520gHardwareMaintenanceManual
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