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Table 45. Removal steps of audio and card reader I/O card (continued)
2
3
4
When installing: Make sure the connector is attached rmly.
1260 System board and base cover
Note: When you replace following system boards, you also need to replace FRUs listed in the following table.
42W8199
System board for MXM-support, with TPM for W700
42W8201
System board for MXM-support, non-TPM for W700
FRUs need to be replaced simultaneously
FRU FRU no.
Video card Depends on the model
Base cover assembly Depends on the model
Structure Frame
45N6098
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 at 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.
• If a system board is dropped, you must test it, using PC-Doctor for DOS, to make sure that the HDD
Active Protection still functions (see below).
Note: If the test shows that HDD Active Protection is not functioning, be sure to document the drop in
any reject report, and replace the system board.
• Avoid rough handling of any kind.
• At every point in the process, be sure not to drop or stack the system board.
Chapter 9. Removing and replacing a FRU 123