Locating parts on the system board
Figure 4 shows the locations of the parts on the system board.
1 4-pin power connector 15 Front panel connector
2 Microprocessor 16 Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
3 Microprocessor fan connector 17 Front USB connectors (2)
4 Memory slot 2 18 Serial (COM2) connector
5 Memory slot 1 19 Front audio connector
6 Memory slot 4 20 Internal speaker connector
7 Memory slot 3 21 PCI card slots (2)
8 Thermal sensor connector 22 PCI Express x1 card slot
9 24-pin power connector 23 PCI Express x16 graphics card slot
10 Diskette drive connector 24 System fan connector
11 Parallel connector 25 Cover presence switch connector (Intrusion
switch connector)
12 SATA connectors (3) 26 Battery
13 eSATA connector 27 PS/2 keyboard and mouse connector
14 Power fan connector
Locating internal drives
Internal drives are devices that your computer uses to read and store data. You can
add drives to your computer to increase storage capacity and enable your
computer to read other types of media. Your computer comes with the following
factory-installed drives:
v A Serial Advanced Technology Attachment (SATA) optical drive in bay 1
v A 3.5-inch SATA hard disk drive in bay 5 (installed in some models)
Figure 4. System board parts locations
Chapter 1. Product overview 11
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