Lenovo ThinkStation C20 User Manual page 17

Figure 5 "System board part and connector locations" on page 11 shows the locations of the parts and
connectors on the other type of system board.
Figure 5. System board part and connector locations
1
CPU 1 memory slots (3)
2
CPU 1 memory fan connector
3
Microprocessor 2
4
CPU 2 12 V power connector
5
24-pin power connector
6
CPU 2 fan connector
7
CPU 2 memory fan connector
8
CPU 2 memory slots (3)
9
Power switch and LEDs connector
10
Auxiliary LED connector
11
Right rear fan connector
12
Front fan connector
13
Card reader connector
14
Front USB connector
15
CPU 1 12 V power connector
18
Clear Complementary Metal Oxide Semiconductor
(CMOS) /Recovery jumper
19
Thermal sensor connector
20
Cover presence switch connector
21
PS/2 keyboard and mouse connector
22
Internal speaker connector
23
Front audio connector
24
PCI card slot
25
PCI Express x4 card slot (x16 mechanical)
26
PCI Express x16 card slot
27
PCI card slot
28
PCI Express x16 card slot
29
PCI Express x1 card slot
30
Auxiliary 12 V power connector
31
Left rear fan connector
32
CPU 1 fan connector
.
Chapter 1 Product overview
11