Figure 4. System board part locations
1
Thermal sensor connector
10
PS/2 keyboard and mouse connector
2
Memory slots (2)
11
Front USB connector 2 (for connecting additional
USB devices)
3
Battery
12
Cover presence switch connector (Intrusion switch
connector)
4
Microprocessor fan connector
13
PCI card slot
5
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
14
Front USB, front panel, and front audio connector
(for connecting USB ports 1 and 2 on the front bezel,
LED indicators and power switch, and microphone and
headphone connectors on the front bezel)
6
Internal speaker connector
15
SATA connector 1 (SATA 3.0 connector)
7
Serial (COM2) connector
16
System fan connector
8
eSATA connector
17
4-pin power connector
9
SATA connector 2 (SATA 2.0 connector)
18
Microprocessor
Opening the computer cover
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre User Guide
. To obtain a copy of the
ThinkCentre User Guide
, go to:
http://www.lenovo.com/ThinkCentreUserGuides
This section provides instructions on how to open the computer cover.
72
ThinkCentre Hardware Maintenance Manual
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