Lenovo ThinkCentre Hardware Maintenance Manual page 79

Machine types: 3026, 3029, 3039, 3054, 3137, 3139, 3149, 3219, 3245, 3246, 3245, 3282, 3319, 3349, 3394, 3421, 3491, 3544, 3627, 3652, 3699, 3769, 3878, 3934, 4972, 4992, 5132, 5206, 5261, 5267, 5297, 5325, 5384, 5391, 5450, 5472, 5474, 5485, 5498, 5536,
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Figure 5. System board parts locations
1
4-pin power connector
2
Microprocessor
3
Microprocessor fan connector
4
Memory slot 2
5
Memory slot 1
6
Memory slot 4
7
Memory slot 3
8
Thermal sensor connector
9
24-pin power connector
10
Diskette drive connector
11
Parallel connector
12
SATA connectors (3)
13
eSATA connector
14
Power fan connector
.
Chapter 8
Replacing FRUs (Machine Types: 3029, 3054, 3139, 3219, 3246, 3282, 3349, 3421, 3544, 3652, 3769, 3934,
15
Front panel connector
16
Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
17
Front USB connectors (2)
18
Serial (COM2) connector
19
Front audio connector
20
Internal speaker connector
21
PCI card slots (2)
22
PCI Express x1 card slot
23
PCI Express x16 graphics card slot
24
System fan connector
25
Cover presence switch connector (Intrusion switch
connector)
26
Battery
27
PS/2 keyboard and mouse connector
4992, 5206, 5267, 5325, 5384, 5450, 5474, 5498, 5554, 5852, 6232, and 6590.)
71

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