Lenovo ThinkCentre A55 8705 Hardware Replacement Manual page 14

The following illustration shows the locations of parts on the system board (some
models).
6
Hardware Replacement Guide
1
Microprocessor and heat sink
2
Microprocessor fan connector
3
Memory connector 1
4
Memory connector 2
5
Diskette drive connector
6
Power connector
7
IDE connector 1
8
IDE connector 2
9
Power fan connector
10
SATA IDE connector (2)
11
Clear CMOS/Recovery jumper
12
Front panel connector
13
Front panel USB connectors (2)
14
Front audio connector
15
CD-IN connector
16
PCI adapter connectors
17
PCI Express x1 adapter connector
18
Battery
19
PCI Express x16 graphics adapter
connector
20
System fan connector
21
12v power connector