IBM ThinkPad T40 Hardware Maintenance Manual page 54

Product overview
FRU
Diskette drive
DVD drive or
DVD/CD-RW
combo drive
Memory
Fan
TrackPoint or
pointing device
Touch Pad
50
ThinkPad T40 Series (MT 2373, 2374, 2375, 2376)
Applicable test
1. Diagnostics --> Diskette Drives
2. Interactive Tests --> Diskette
1. Diagnostics --> Other Devices -->
CD-ROM/DVD
2. Interactive Tests --> CD-ROM/DVD Test
1. If two DIMMs are installed, remove one of
them and run Diagnostics --> Memory
Test—Quick.
2. If the problem does not recur, return the
DIMM to its place, remove the other one,
and run the test again.
3. If the test does not detect the error, run
Diagnostics --> Memory Test—Full.
1. Turn on the computer and check the air
turbulence at the louver near the PC Card
slot.
2. Run Diagnostics --> Other Devices -->
IBM Fan.
If the TrackPoint does not work, check the
configuration in the ThinkPad Configuration
program. If the TrackPoint is disabled, select
Automatic to enable it.
After you use the TrackPoint, the pointer may
drift on the screen for a short time. This drift
can occur when a slight, steady pressure is
applied to the TrackPoint pointer. This symptom
is not a hardware problem. If the pointer stops
after a short time, no service action is
necessary.
If enabling the TrackPoint does not correct the
problem, continue with the following:
v Interactive Tests --> Mouse
If the Touch Pad does not work, check the
configuration in the ThinkPad Configuration
program. If the Touch Pad is disabled, select
Automatic to enable it. If enabling the Touch
Pad does not correct the problem, continue
with the following:
v Interactive Tests --> Mouse