Desktop Computer Hardware Maintenance Manual

Identifying parts on the system board
The system board (sometimes called the planar or motherboard) is the main circuit
board in the computer. It provides basic computer functions and supports a variety
of devices that are IBM-installed or that you can install later.
The following illustration shows the locations of parts on the system board.
1 Fan connectors (2) 8 Promise of value (POV) daughter card
connector
2 Memory connectors (2) 9 Diskette drive connector
3 SATA 1 IDE and SATA 2 IDE hard
disk drive connectors (2)
10 Front panel connector
4 PCI riser connector 11 Power connector
5 Battery 12 PATA Primary IDE connector (hard disk
drive and optical drive)
6 Clear CMOS/BIOS recovery
jumper
13 Power connector
7 Speaker connector 14 Microprocessor
15 CD audio connector
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