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 that are installed or that you can install later.
The following illustration shows the locations of parts on the system board.
1 Internal speaker connector 12 Fan connector 2
2 Serial connector 2 (COM2) 13 Memory connector 1
3 PCI Express (x16) graphics
adapter connector
14 Memory connector 2
4 Power supply connector 15 Memory connector 3
5 Diskette drive connector 16 Memory connector 4
6 12v power connector 17 Battery
7 Temperature sensor connector 18 PCI riser connector
8 Microprocessor heat sink 19 SATA IDE connectors (3)
9 Fan connector 1 20 Clear CMOS/Recovery jumper
10 Front panel connector 21 Cover presence switch (some models)
11 Microprocessor
Chapter 3. Installing options 23
