Lenovo M90 User's Guide Page 17

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3Harddiskdrive(installedinsomemodels)
7Battery
4Systemfanassembly
8Internalspeaker
Locatingpartsonthesystemboard
Figure4“Systemboardpartlocations”onpage9showsthelocationsofthepartsonthesystemboard.
Figure4.Systemboardpartlocations
1Thermalsensorconnector
10PCIcardslot
2Memoryslots(2)11FrontUSBconnector2
3Battery
12Coverpresenceswitchconnector(Intrusionswitch
connector)
4Systemfanconnector13FrontUSB,frontpanel,andfrontaudioconnector
5Internalspeakerconnector
14SATAconnector1
6Serial(COM)connector
15Microprocessorfanconnector
7SATAconnector2andeSATAconnector
164-pinpowerconnector
8PS/2keyboardandmouseconnector
17Microprocessor
9ClearCMOS(ComplementaryMetalOxide
Semiconductor)/Recoveryjumper
Chapter1.Productoverview9
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