Lenovo M90 User's Guide download pdf (Page 26)

Figure14.Removingtheoldbattery

5.Installanewbattery.

Figure15.Installinganewbattery

6.Reconnectallthecablestothesystemboardandclosethecomputercover.See“Completingthe

partsreplacement”onpage25.

Note:Whenthecomputeristurnedonforthersttimeafterbatteryreplacement,anerrormessage

mightbedisplayed.Thisisnormalafterreplacingthebattery.

7.Turnonthecomputerandallattacheddevices.

8.UsetheSetupUtilityprogramtosetthedate,time,andanypasswords.SeeChapter4“UsingtheSetup

Utilityprogram”onpage35

Replacingtheheatsink

Attention:

Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”

intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre

SafetyandWarrantyGuide,goto:

http://www.lenovo.com/support

Thissectionprovidesinstructionsonhowtoreplacetheheatsink.

CAUTION:

Theheatsinkmightbeveryhot.Turnoffthecomputerandwaitthreetoveminutesto

letthecomputercoolbeforeopeningthecomputercover.

Toreplacetheheatsink,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect

allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Openthecomputercover.See“Openingthecomputercover”onpage12.

3.Locatetheheatsink.See“Locatingcomponents”onpage8.

4.Removethefourscrewsthatsecuretheheatsinktothesystemboard.

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Lenovo M90 User's Guide Page 26