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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 fan connector 11 Front panel connector
2 Microprocessor and heat sink 12 SATA IDE connectors (2)
3 Memory connector 1 13 Front USB connectors (2)
4 Memory connector 2 14 Serial (COM) connector
5 Clear CMOS/Recovery jumper 15 PCI adapter connectors
6 Power connector 16 Front audio connector
7 Diskette drive connector 17 PCI Express x16 graphics adapter
connector
8 IDE connector 1 18 PCI Express x1 adapter connector
9 IDE connector 2 19 System fan connector
10 Battery 20 12v power connector
4 Hardware Replacement Guide