User guide

Figure4“Systemboardpartlocations”onpage12showsthelocationsofthepartsononetypeofsystem
board.
Figure4.Systemboardpartlocations
14-pinmicroprocessorpowerconnector
16Frontpanelconnector(forconnectingLEDindicatorsand
powerswitch)
2Microprocessor
17ClearCMOS(ComplementaryMetalOxideSemiconductor)
/Recoveryjumper
3Microprocessorfanconnector
18FrontUSBconnector1(forconnectingUSBports1and2
onthefrontbezel)
4Memoryslot1(DIMM1)
19Battery
5Memoryslot2(DIMM2)20FrontUSBconnector2(forconnectingadditionalUSB
devices)
6Memoryslot3(DIMM3)21Serial(COM2)connector
7Memoryslot4(DIMM4)
22Internalspeakerconnector
8Thermalsensorconnector23Frontaudioconnector
94-pinSATApowerconnectors(2)24PCIcardslots(2)
1014-pinpowerconnector25DisplayPortconnector
11SATAconnectors1and2(SATA3.0connectors)26PCIExpressx1cardslot
12Parallelconnector
27PCIExpressx16graphicscardslot
13eSATAconnector28Systemfanconnector
14SATAconnector3(SATA2.0connector)29Coverpresenceswitchconnector(Intrusionswitch
connector)
15Powerfanconnector
30PS/2keyboardandmouseconnector
12ThinkCentreUserGuide