Lenovo THINKPAD W701DS Hardware Maintenance Manual page 142

Table 36. Installation of the VGA thermal device/fan and thermal putty in ThinkPad W701 and
W701ds
When installing:
v Before you attach the fan assembly to the computer, attach new thermal putty
v Apply thermal grease, at an amount of 0.2 grams, on the part marked b as in
v Make sure that the fan connector is attached firmly.
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ThinkPad W700, W700ds, W701, and W701ds Hardware Maintenance Manual
on the video card as shown as a in this figure.
the following figure. Either too much or too less application of grease can cause
a thermal problem due to imperfect contact with a component.
a
a
b