4-12 Maintenance and Troubleshooting
Table 4-4 Problems and Solutions
Problem
Symptom
Solution
CD-ROM
Malfunction
(cont’d)
No sound from CDs.
1. Check that speaker power is on and
volume is adjusted.
2. Check audio software settings.
3. Check CD audio cable. Replace as
necessary.
4. .Replace CD-ROM reader.
5. Replace system board.
Communication
Error
No or bad data when
communicating.
1. Check cable connections between
system 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 system board.
Beep Codes
One beep indicates that the system has completed its power-on self-test. If a long beep or a
series of long beeps occur, power off the computer and try again. If the long beeps persists,
see Table 4-5 for the diagnostic beep codes.
The beep codes are announced on the speaker only if a fatal failure is detected. For instance,
three long beeps indicates a failure in the first 64 K of RAM.
Table 4-5 Diagnostic Beep Codes
Message
Beeps
Description of Failure
Refresh Failure
1
The memory refresh circuit on the system board is
faulty.
Base 64 KB Memory Failure
3
Memory failure in the first 64 KB.
Timer Not Operational
4
Memory failure in the 64 KB of memory or timer 1
on the system board is not functioning.
Processor Error
5
The CPU on the system board generated an error.
8042 – Gate A20 Failure
6
The keyboard controller (8042) may be bad. The
BIOS cannot switch to protect mode.
Содержание POWERMATE PRO150
Страница 152: ...A 16 Connector Pin Assignments ...
Страница 160: ...B 8 System Board Settings ...