1220 System Board And Base Cover - Lenovo ThinkPad T540p Hardware Maintenance Manual

• "1110 Keyboard" on page 68
• "1120 Keyboard bezel assembly" on page 73
• "1150 LCD unit" on page 82
• "1160 Magnesium structure frame" on page 85
• "1190 Thermal fan assembly" on page 88
Removal steps of the microprocessor
Rotate the head of the screw using the Torx screwdriver in the direction shown by the arrow
the lock; then remove the microprocessor
shown by the arrow .
3
When installing: Place the microprocessor in the microprocessor socket, and then rotate the head of the
screw using the Torx screwdriver in the direction shown by the arrow

1220 System board and base cover

Important notices for handling the system board
When handling the system board, read the following:
• The system board has an accelerometer, which can be broken when several thousands of G-forces
are applied.
2 . After that, peel the mylar off from the microprocessor as
2
3
1 1
4 4
4 to secure the microprocessor.
.
Chapter 9 Removing or replacing a FRU
1 to release
91