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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.
Figure 4 shows the location of parts on the system board.
1 Microprocessor 9 PCI slot
2 Clear CMOS/Recovery jumper 10 Front USB connector 2
3 Thermal sensor connector 11 Intrusion switch connector/Cover
presence switch connector
4 Battery 12 Front I/O and LED/Switch header
5 Memory slots (2) 13 eSATA connector
6 Internal speaker connector 14 Internal power distribution connector
7 Serial (COM) connector 15 Fan connector
8 SATA connectors (2)
Figure 4. Locating parts on the system board
Chapter 2. Overview 9