Lenovo T400s User Manual - Page 129
When installing, Screw quantity, Color, Torque
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Table 26. Removal steps of system board, fan assembly, and 34-mm ExpressCard slot frame (continued) When installing: v 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 figure. 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 film off from the rubber b . a b v Make sure that the fan connector is attached firmly. 89 9 Step 8 Screw (quantity) Color M2 × 3 mm, small−head, nylon-coated (1) Silver 9 M2 × 5 mm, flat−head, nylon-coated (2) Black Torque 0.167 Nm (1.7 kgfcm) 0.167 Nm (1.7 kgfcm) Removing and replacing a FRU 121
Table 26. Removal steps of system board, fan assembly, and 34-mm ExpressCard slot
frame (continued)
When installing:
v
Before you attach the fan assembly to the computer, apply thermal grease, at
an amount of 0.2 grams, on the part marked
±a²
as in the following figure.
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 film off
from the rubber
±b²
.
a
b
v
Make sure that the fan connector is attached firmly.
8
9
9
Step
Screw (quantity)
Color
Torque
±8²
M2
×
3 mm, small±head, nylon-coated (1)
Silver
0.167 Nm
(1.7 kgfcm)
±9²
M2
×
5 mm, flat±head, nylon-coated (2)
Black
0.167 Nm
(1.7 kgfcm)
Removing and replacing a FRU
121