Lenovo 3000 - Manual (Page 12)

Identifying parts on the system board
The system board (sometimes called the planar or motherboard) is the main circuit
board in your computer. It provides basic computer functions and supports a
variety of devices.
The following illustration shows the locations of parts on the system board for
some computer models.
1 Microprocessor and heat sink 11 Front panel connector
2 Microprocessor fan connector 12 Power LED connector
3 Memory connector 1 13 Clear CMOS/Recovery jumper
4 Memory connector 2 14 Front USB connectors
5 Power connector 15 Battery
6 Diskette drive connector 16 PCI adapter connectors
7 Primary IDE connector 17 Front audio connector
8 Secondary IDE connector 18 AGP adapter connector
9 Fan connector 19 12v power connector
10 SATA IDE connectors
4 Hardware Replacement Guide