
Figure 4. System board part locations
1Thermal sensor connector
2Memory slots (2)
3Battery
4Microprocessor fan connector
5Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper
6Internal speaker connector
7Serial (COM2) connector
8eSATA connector
9SATA connector 2 (SATA 2.0 connector)
10PS/2 keyboard and mouse connector
11Front USB connector 2 (for connecting additional USB devices)
12Cover presence switch connector (Intrusion switch connector)
13PCI card slot
14Front USB, front panel, and front audio connector (for connecting USB ports 1 and 2 on the front bezel, LED indicators and power switch, and microphone and headphone connectors on the front bezel)
15SATA connector 1 (SATA 3.0 connector)
16System fan connector
17
18Microprocessor
Opening the computer cover
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information” in the ThinkCentre User Guide. To obtain a copy of the ThinkCentre User Guide, go to: http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to open the computer cover.