Figure5.Systemboardpartlocations
1Microprocessor11Coverpresenceswitchconnector(alsocalledintrusion
switchconnector)
2Microprocessorfanconnector12FrontUSBconnector
3Memoryslots(2)13Serial(COM2)connector
4Thermalsensorconnector14PCIcardslot
524-pinpowerconnector15Powerfanconnector
6Battery16Internalspeakerconnector
7ClearCMOS(ComplementaryMetalOxide
Semiconductor)/Recoveryjumper
17Frontaudioconnector
8SATAconnectors(4)18PCIExpressx1cardslots(2)
9Frontpanelconnector19PCIExpressx16graphicscardslot
10FrontUSBconnector20Systemfanconnector
214-pinpowerconnector
Removingandreinstallingthefrontbezel
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.T oobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support

Thissectionprovidesinstructionsonhowt or emoveandreinstallthefrontbezel.

Chapter8.ReplacingFRUs71