4-32
Compaq Professional Workstation AP550 Maintenance and Service Guide
Memory
Table 4-14
Memory Test Error Codes
Error Code Description Recommended Action
200-xx Memory machine ID test failed. Reinsert RIMM in correct location.
202-xx
Memory system ROM checksum
failed.
The following steps apply to error
codes 202-xx through 215-xx:
203-xx Memory write/read test failed. 1.
Remove one pair of RIMMs
at a time until the error
message stops.
204-xx Memory address test failed. 2.
Replace other removed
RIMMs one pair at a time,
testing each to ensure the
error does not return.
211-xx Random pattern test failed.
3.
Replace the system board
and retest.
214-xx Noise test failed.
215-xx Random address test failed.
Keyboard
Do not hold down a key during the boot-up sequence. Holding down any key during the boot-up
sequence causes the Basic Input Output System (BIOS) to beep, as a warning of possible
keyboard problems. Wait until after the system has booted, then press the
Num Lock
key. If the
Num Lock light on the keyboard toggles on and off with each press of the
Num Lock
key, then
the keyboard is functioning properly.
Table 4-15
Keyboard Test Error Coded
Error Code Description Recommended Action
300-xx Keyboard ID test failed.
The following steps apply to error
codes 300-xx through 304-xx:
301-xx
Keyboard self-test/interface test
failed.
1.
Check the keyboard
connection. If disconnected,
turn the computer off and
connect the keyboard.
302-xx Individual key test failed.
2.
Replace the keyboard and
retest.
304-xx Keyboard repeat test failed.
3.
Replace the system board
and retest.