Personal Computer User Manual

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.
Figura 4 shows the locations of parts on the system board for some computer
models.
1 Microprocessor fan connector 13 Front USB connectors (2)
2 Microprocessor and heat sink 14 Battery
3 Memory connector 1 15 Clear CMOS/Recovery jumper
4 Memory connector 2 16 Serial (COM) connector
5 Memory connector 3 17 PCI adapter connectors
6 Memory connector 4 18 Mono (speaker) connector
7 Cover presence switch connector 19 Front audio connector
8 Diskette drive connector 20 CD-IN connector
9 IDE connector 1 21 PCI Express x16 graphics adapter
connector
10 Power connector 22 PCI Express x1 adapter connector
11 SATA IDE connectors (4) 23 System fan connector
12 Front panel connector 24 12 V power connector
Figura 4. System board parts locations
Capitolo 2. Overview 7