Lenovo ThinkPad S540 Hardware Maintenance Manual page 89

Removal steps of the system board
When installing:
Ensure that the connectors are attached firmly to the system board.
Step Screw (quantity)
14
M2 × 3 mm, flat-head, nylon-coated (5)
13
12
1
2
3
4
14
14
9
5
7
10
6
8
14
14
14
Color
Black
.
Chapter 9 Removing or replacing a FRU
11
Torque
0.181 Nm
(1.85 kgf-cm)
83