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
4-pin power connector
15
eSATA connector
2
Microprocessor
16
Power fan connector
3
Microprocessor fan connector
17
Front panel connector (for connecting LED indicators and
power switch)
4
Memory slot 1 (DIMM1)
18
Front USB connector 1 (for connecting USB ports 1 and 2
on the front bezel)
5
Memory slot 2 (DIMM2)
19
Front USB connector 2 (for connecting additional USB
devices)
6
Memory slot 3 (DIMM3)
20
Serial (COM2) connector
7
Memory slot 4 (DIMM4)
21
Internal speaker connector
8
Thermal sensor connector
22
Front audio connector
9
24-pin power connector
23
PCI card slots (2)
10
Battery
24
PCI Express x1 card slot
11
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
25
PCI Express x16 graphics card slot
12
Parallel connector
26
System fan connector
13
SATA connector 1 (SATA 3.0 connector)
27
Cover presence switch connector (Intrusion switch
connector)
14
SATA connectors 2 and 3 (SATA 2.0 connectors)
28
PS/2 keyboard and mouse connector
Chapter 8
.
Replacing FRUs (Machine Types: 0268, 1730, 1943, 4166, 4169, 5030, 5048, 5069, and 7517)
77
Summary of Contents for ThinkCentre M81
Page 6: ...iv ThinkCentre Hardware Maintenance Manual ...
Page 15: ...Chapter 2 Safety information 9 ...
Page 16: ... 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb 10 ThinkCentre Hardware Maintenance Manual ...
Page 20: ...14 ThinkCentre Hardware Maintenance Manual ...
Page 21: ...1 2 Chapter 2 Safety information 15 ...
Page 22: ...1 2 16 ThinkCentre Hardware Maintenance Manual ...
Page 28: ...22 ThinkCentre Hardware Maintenance Manual ...
Page 29: ...1 2 Chapter 2 Safety information 23 ...
Page 33: ...Chapter 2 Safety information 27 ...
Page 34: ...1 2 28 ThinkCentre Hardware Maintenance Manual ...
Page 38: ...32 ThinkCentre Hardware Maintenance Manual ...
Page 78: ...72 ThinkCentre Hardware Maintenance Manual ...
Page 168: ...162 ThinkCentre Hardware Maintenance Manual ...
Page 370: ...364 ThinkCentre Hardware Maintenance Manual ...
Page 374: ...368 ThinkCentre Hardware Maintenance Manual ...
Page 379: ......
Page 380: ...Part Number 0A74545 Printed in USA 1P P N 0A74545 0A74545 ...