Lenovo 28155XU, 28155YU Step, Screw quantity, Color, Torque, ⋅ 3.5 mm, big-head, nylon-coated3

Table 26. Removal steps of system board, fan assembly, and 34-mm ExpressCard slot frame (continued)

1

1

Step	Screw (quantity)		Color	Torque
	M2	⋅ 3.5 mm, big-head, nylon-coated (3)	Black	0.167 Nm
				(1.7 kgfcm)
	M2	⋅ 6 mm, bind-head, nylon-coated (1)	Black	0.167 Nm
				(1.7 kgfcm)
In step	, remove the system board and fan assembly together from the base
cover assembly.

3

Removing and replacing a FRU 119