Locating parts on the system board
Figure 4 “System board part locations” on page 77 shows the locations of the parts on the system board.
Figure 4. System board part locations
1
Microprocessor
14
Front panel connector (for connecting LED indicators and
power switch)
2
Microprocessor fan connector
15
Front USB connector 1 (for connecting USB ports 1 and 2
on the front bezel)
3
Memory slot 1 (DIMM1)
16
Front USB connectors 2 and 3 (for connecting additional
USB devices)
4
Memory slot 2 (DIMM3)
17
Cover presence switch connector (Intrusion switch
connector)
5
Memory slot 3 (DIMM2)
18
Serial (COM2) connector
6
Memory slot 4 (DIMM4)
19
Internal speaker connector
7
Thermal sensor connector
20
Front audio connector
8
24-pin power connector
21
PCI card slot
9
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
22
PCI Express x1 card slots (2)
10
Battery
23
PCI Express x16 graphics card slot
11
Power fan connector
24
System fan connector
12
Parallel connector
25
PS/2 keyboard and mouse connector
13
SATA 3.0 connectors (4)
26
4-pin power connector
Chapter 8
.
Replacing FRUs (Machine Types: 1982, 1983, 1985, 1986, 1987, 1990, 1992, 1993, 1994, and 1995.)
77
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