Lenovo ThinkStation P620 Hardware Maintenance Manual page 58

Figure 1. System board part locations
1
Cover presence switch connector (intrusion switch
connector)
3
Optical-drive fan connector 2
5
Memory slot 1
7
Memory slot 3
9
Optical-drive fan connector
11
Microprocessor fan connector 1
13
Microprocessor fan connector 2
15
Memory slot 5
17
Memory slot 7
19
M.2 solid-state drive slot 1
21
Coin-cell battery
54
P620 Hardware Maintenance Manual
2
Memory fan connector 1
4
4-pin power connector (for optical drive)
6
Memory slot 2
8
Memory slot 4
10
Thermal-sensor connector
12
Microprocessor
14
Front input/output connector
16
Memory slot 6
18
Memory slot 8
20
M.2 solid-state drive slot 2
22
4-pin power connector (for storage drive)