Lenovo 3379 - Manual (Page 19)

Locating parts on the system board
Figure 4 shows the locations of the parts on the system board.
1 PCI card slot 11 Memory slots (4)
2 PCI Express x16 graphics card slot 12 24-pin power connector
3 Battery 13 Serial (COM 2) connector
4 Internal speaker connector 14 Front audio connector
5 Cover presence switch connector
(Intrusion switch connector) (some
models)
15 SATA connectors (2)
6 Microprocessor fan connector 16 System fan connector
7 Thermal sensor connector 17 Front USB connector 1
8 Microprocessor 18 Front USB connector 2
9 4-pin power connector 19 Clear CMOS (Complementary Metal Oxide
Semiconductor)/Recovery jumper
10 Front panel connector 20 Power fan connector
Figure 4. System board parts locations
Chapter 1. Product overview 11