Compaq Deskpro 4000N - Desktop PC, Maintenance & Service Manual

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Compaq Deskpro 4000S and 4000N Personal Computers D-3
Table 4-3
Memory Test Error Codes
Error
Code
Description Recommended Action
0200-xx Memory machine ID test failed.
Reinsert memory modules and retest.
0202-xx Memory system ROM checksum failed The following steps apply to error codes 0202-xx through 0211-xx:
0203-xx Memory write/read test failed
1. Remove one memory module at a time until the error message
stops.
0204-xx Memory address test failed.
2. Replace other removed modules one at a time, testing each to
ensure the error does not return.
0205-xxx Memory walking 1s test failed
3. Replace the system board and retest.
0209-xxx RAM long test failed
0211-xx Random pattern test failed.
0212-xxx Cache test failed
Replace system board and retest.
0214-xx Noise test failed. The following steps apply to error codes 0214-xx through 0215-xx:
0215-xx Random address test failed.
1. Remove one memory module at a time until the error message
stops.
2. Replace other removed modules one at a time, testing each to
ensure the error does not return.
3. Replace the system board and retest.
Table 4-4
Keyboard Test Error Codes
Error
Code
Description
.
Recommended Action
0300-xx Keyboard ID test failed.
The following steps apply to error codes 0300-xx through 0304-xx:
0301-xx Keyboard self-test/interface test failed.
1. Check the keyboard connection. If disconnected, turn the computer
off and connect the keyboard.
0302-xx Individual key test failed.
2. Replace the keyboard and retest.
0304-xx Keyboard repeat test failed. 3. Replace the system board and retest.
Table 4-5
Parallel Printer Test Error Codes
Error
Code
Description Recommended Action
0401-xx Printer failed or not connected. The following steps apply to 0401-xx through 0403-xx:
0402-xx Printer port test failed.
1. Connect the printer.
0403-xx Printer pattern test failed.
2. Check power to the printer.
3. Install the loop-back connector and retest.
4. Replace system board and retest.