Table 21. Removal steps of I/O board
2 
3
1
| Step | Screw (quantity) | Color | Torque | |
|
|
|
|
|
|
|
|
| M2 × 4 mm, | Silver | 0.181 Nm |
| 1 |
| |||
|
|
|
|
| (1.85 kgfcm) |
|
|
|
|
| |
| 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
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.
Chapter 8. Removing and replacing a FRU 71
