Lenovo ThinkCentre M79 User Manual page 18

Locating parts on the system board
The following illustration shows the locations of the parts on the system board.
Figure 4. System board part locations
1
4-pin power connector
3
Memory slot 1 (DIMM1)
5
Memory slot 3 (DIMM3)
7
Thermal sensor connector
9
4-pin power connectors (2)
11
Power fan connector
13
SATA 3.0 connectors (2)
15
Front panel connector (for connecting LED
indicators and power button)
17
Front USB 2.0 connector 2 (for connecting an
additional USB device)
19
Serial connector
21
Front audio connector
23
PCI Express x1 card slots (2)
25
System fan connector
27
Microprocessor
6
ThinkCentre M79 User Guide
2
Microprocessor fan connector
4
Memory slot 2 (DIMM2)
6
Memory slot 4 (DIMM4)
8
Hard disk drive fan connector
10
14-pin power connector
12
Parallel connector
14
SATA 3.0 connector
16
Front USB 2.0 connector 1 (for connecting USB connectors
1 and 2 on the front bezel)
18
Clear CMOS (Complementary Metal Oxide Semiconductor)
/Recovery jumper
20
Battery
22
PCI card slot
24
PCI Express x16 graphics card slot
26
DisplayPort connector