has exceeded its normal temperature  range. This
symptom does not indicate a  hardware problem. No
service actions are necessary if  the pointer movement
stops in a short period  of time.
If a click button problem  or pointing stick problem occurs,
do the following:
1. Boot from the diagnostics diskette  and start the PQA
program (please refer to “Running  PQA Diagnostics
Program” on page 25).
2. Go to the diagnostic Manual  Test menu.
3. Press F2 in the test  items.
4. Press the left and right  click buttons.
5. Use the pointing stick to  move the cursor to the  4
corners.
If either the pointing stick  or the click button does  not work,
perform the following actions, one  at a time, to correct  the
problem. Do not replace  a non-defective FRU.
Reseat the keyboard flexible cables  and the
TrackPoint flexible cable.
Reseat the flexible cable connecting  the TrackPoint
board via the system board.
Replace the TrackPoint board (under  the click
buttons).
Replace the keyboard.
Replace the system board.
Diskette Drive TestDo the following to isolate  the problem to a controller,
drive, or diskette. A  scratch, write enabled, non-defective,
high-density (2HD) diskette is required.
Warning: Make sure that the diskette  does not have more
than one label attached to  it. Multiple labels can  cause
damage to the drive or  can cause the drive to  fail.
Do the following to select  the test device:
1. Boot from the diagnostics diskette  and start the PQA
program (please refer to “Running  PQA Diagnostics
Program” on page 25).
2. Go to the diagnostic Diskette  Drive in the test items.
3. Press F2 in the test  items.
4. Follow the instructions in the  message window.
If an error occurs with  the internal diskette drive, reseat  the
connector on the system board.
If the error still remains:
1. Reseat the diskette drive cable.
2. Replace the diskette drive cable.
    ThinkPad 310, 310D, 310E, 310ED (2600) 7