Lenovo 646001U Hardware Maintenance Manual - Page 101
Screw, quantity, Color, Torque, discrete, graphics, models
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Table 29. Removal steps of base cover (continued) a 4 4 5 Step Screw (quantity) Color Torque 4 M2 × 5 mm, flat-head, nylon-coated (2) Black 0.167 Nm (1.7 kgfcm) 5 M2 × 3 mm, small-head, nylon-coated (1) Silver 0.167 Nm (1.7 kgfcm) For discrete graphics models: When you are servicing, make sure that the thermal rubber for FET is firmly attached on the system board as shown in a . When replacing the rubber, you need to peel the thin film off from the bottom, and attach it to the system board. ThinkPad T61 and T61p (14.1-inch) 93
Table
29.
Removal
steps
of
base
cover
(continued)
4
5
4
a
Step
Screw
(quantity)
Color
Torque
±4²
M2
×
5
mm,
flat-head,
nylon-coated
(2)
Black
0.167
Nm
(1.7
kgfcm)
±5²
M2
×
3
mm,
small-head,
nylon-coated
(1)
Silver
0.167
Nm
(1.7
kgfcm)
For
discrete
graphics
models:
When
you
are
servicing,
make
sure
that
the
thermal
rubber
for
FET
is
firmly
attached
on
the
system
board
as
shown
in
±a²
.
When
replacing
the
rubber,
you
need
to
peel
the
thin
film
off
from
the
bottom,
and
attach
it
to
the
system
board.
ThinkPad
T61
and
T61p
(14.1-inch)
93