Important
When handling the system board in ThinkPad T41
series, bear the following in mind.
v
The system board of the ThinkPad T41 series
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.
v
Be careful not to drop the system board on a
bench top that has a hard surface, such as metal,
wood, or composite.
v
If a system board is dropped, you must test it,
using PC-Doctor DOS, to make sure that the IBM
HDD Active Protection still functions (see below).
Note: If the test shows that IBM HDD Active
Protection is not functioning, be sure to
document the drop in any reject report,
and replace the system board.
v
Avoid rough handling of any kind.
v
At every point in the process, be sure not to drop
or stack the system board.
v
If you put a system board down, be sure to put it
only on a padded surface such as an ESD mat or
conductive corrugated material.
After replacing the system board, run PC-Doctor
DOS to make sure that IBM HDD Active Protection
still functions. The procedure is as follows:
1. Place the computer on a horizontal surface.
2. Run Diagnostics --> Other Devices --> IBM
HDD Active Protection Test.
Attention:
Do not apply physical shock to the
computer while the test is running.
Removing and replacing a FRU
ThinkPad T40, T40p, T41 Series
111
Summary of Contents for ThinkPad T40 series
Page 6: ...2 MT 2373 2374 2375 2376 2378 2379...
Page 46: ...Checkout guide 42 MT 2373 2374 2375 2376 2378 2379...
Page 121: ...5 4 Removing and replacing a FRU ThinkPad T40 T40p T41 Series 117...
Page 134: ...4 4 continued Removing and replacing a FRU 130 MT 2373 2374 2375 2376 2378 2379...
Page 135: ...5 5 continued Removing and replacing a FRU ThinkPad T40 T40p T41 Series 131...
Page 143: ...1 2 3 4 5 6 7 8 9 15 10 11 12 13 14 18 16 17 Locations ThinkPad T40 T40p T41 Series 139...
Page 171: ...LCD FRUs 1 b a 2 5 c d 3 7 8 9 4 Parts list ThinkPad T40 T40p T41 Series 167...
Page 188: ...Part Number 13N5911 1P P N 13N5911...