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Figure 2. Rear connector locations
1 Voltage-selection switch 9 Microphone connector
2 Power cord connector 10 Audio line-out connector
3 PS/2® mouse connector
11 Audio line-in connector
4 PS/2 keyboard connector 12 PCI Express x16 graphics card slot
5 DVI monitor connector
13 PCI Express x1 card slots (2)
6 Serial port 14 PCI card slot
7 VGA monitor connector
15 Ethernet connector
8 USB connectors (4) 16 Serial port (some models)
Removing the computer cover
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to remove the computer cover.
CAUTION:
Turn off the computer and wait three to ve minutes to let the computer cool before
removing the computer cover.
To remove the computer cover, do the following:
68 ThinkCentre Hardware Maintenance Manual