1130 System Board, Fan Assembly, And Backup Battery - Lenovo THINKPAD X120E Hardware Maintenance Manual

Table 21. Removal steps of I/O board
Step Screw (quantity)
1
M2 × 4 mm, wafer-head, nylon-coated (1)
When installing: Make sure that the connector is attached firmly.

1130 System board, fan assembly, and backup battery

Important notices for handling the system board:
When handling the system board, bear the following in mind.
• The system board has an accelerometer, which can be broken by applying several thousands of G-forces.
Note: Dropping a system board from a height of as little as 6 inches so that it falls flat on a hard bench
can subject the accelerometer to as much as 6,000 G's of shock.
• Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or
composite.
• Avoid rough handling of any kind.
2
1
Color
Silver
.
Chapter 8 Removing and replacing a FRU
3
Torque
0.181 Nm
(1.85 kgfcm)
71