Lenovo 2985F4U Laptop User Manual


 
Table 25. Removal steps of system board, DC-in connector, fan, and ExpressCard slot assembly for ThinkPad X200s and
X201s (continued)
Make sure that the DC-in connector and the fan connector are attached to the system board rmly
7
8
5
4
6
Step Screw (quantity) Color
Torque
7
M2 × 3.5 mm, wafer-head, nylon-coated (1) Silver
0.181 Nm
(1.85 kgf-cm)
When installing:
Before you attach the fan assembly to the computer, apply thermal grease, at an amount of 0.2 grams, on the
part marked a as in the following gure. Either too much or too less application of grease can cause a thermal
problem due to imperfect contact with a component. You need to peel the thin lm off from the rubber b .
For ThinkPad X200s:
a
b
Chapter 8. Removing and replacing a FRU 109