IBM THINKPAD S05L-1270-01 - Manual (Page 609)

Attention
When removing, be careful not to damage the
CPU card.
When replacing, make sure the card is connected
firmly. Press only the corners of the card, as
shown.
A loose connection or damage to the card causes the
serious problem, such as not being able to powered
on.
Step Size (Quantity) Color Torque
1 M2 x 10 mm (3) Yellow 2.5
kgcm
2 M2.5 x 4 mm, Nylon
(1) Yellow 4 kgcm
Note: Make sure you use the correct screw and tighten the
screw to the torque specified. Do not use the screw that you
removed, use a new screw.
ThinkPad 770 (9548, 9549) 597