Locating Parts On The System Board - Lenovo ThinkCentre M78 Hardware Maintenance Manual

Locating parts on the system board

Figure 4 "System board part locations" on page 71 shows the locations of the parts on the system board.
Figure 4. System board part locations
1
4-pin power connector
2
Microprocessor
3
Microprocessor fan connector
4
Memory slot 1 (DIMM 1)
5
Memory slot 2 (DIMM 2)
6
Memory slot 3 (DIMM 3)
7
Memory slot 4 (DIMM 4)
8
Thermal sensor connector
9
4-pin power connectors (2)
10
14-pin power connector
11
Battery
12
SATA 3.0 connectors (4)
13
Power fan connector
14
Parallel connector
15
Front panel connector (for connecting LED indicators and
the power switch)
16
Front USB connector 1 (for connecting USB ports 1 and 2
on the front bezel)
17
Front USB connector 2 (for connecting additional USB
devices)
18
Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
19
Serial (COM2) connector
20
Internal speaker connector
21
Front audio connector
22
PCI card slots (2)
23
PCI Express x1 card slot
24
PCI Express x16 graphics card slot
25
Cover presence switch connector (Intrusion switch
connector)
26
System fan connector
27
DisplayPort connector
28
PS/2 keyboard and mouse connector
71
.
Chapter 8 Locations