4-14 Maintenance and Troubleshooting
Table 4-2 Problems and Solutions
Problem
Symptom
Solution
Communication
Error
Bad data or no data when
communicating.
1.Check cable connections between
riser board and device.
2. Check that the interface port is
selected.
3. Test or replace the device and
interface cable (see the device
documentation for troubleshooting).
4. Replace the system board.
5. Replace the riser board.
Replacing the CMOS Battery
Remove the 3-volt lithium battery from the system board as follows.
1.
Turn off and unplug the system unit and any external options connected to the
system.
CAUTION:
Removing the battery from the
system board causes the computer to lose system
configuration information. If possible, run Setup
and record the system configuration settings
before removing the battery. Use that
information to restore the system after replacing
the battery.
2.
Remove the system unit cover as described in Section 3.