IBM THINKPAD S05L-1270-01 - Manual (Page 94)

Note
As the PCMCIA eject buttons are sticking out, pull the
buttons out slightly and fold them to the right; then
push up the system board assembly from the bottom
when removing the system board assembly.
Step Size (Quantity) Torque
4 M 2.5 x 6mm, Special head (2) 4 kgcm
5 Special screw (1) 3 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.
82 IBM Mobile Systems HMM