Lenovo ThinkCentre M920t User Manual And Hardware Maintenance Manual page 19

Figure 9. Locating FRUs (including CRUs)
Self-service CRUs
2
Coin-cell battery
4
Memory module
6
M.2 storage drive
8
Optical drive bracket
9
Optical drive
Optional-service CRUs
29
Power supply assembly
32
E-lock
36
Wi-Fi card shield
37
Wi-Fi card
Non-CRUs
1
Heat sink and fan assembly
3
Microprocessor
5
System board
7
Optical drive cable
11
Computer handle
.
Chapter 4 Replacing hardware
15