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Maintenance and Service Guide Compaq Presario 7300 Series Computers
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Clearing CMOS
Power-On Self Test (POST)
Configuration
Diagnostic error codes
Troubleshooting without diagnostics
| TROUBLESHOOTING Diagnostic Error Codes (continued)
| Memory error codes
Error Code | Description | Recommended Action
200-xx | Invalid memory configuration | 1. Verify memory module value compatibility. 2. Reinsert memory in the correct location.
201-xx | Memory machine ID test failed | The following steps apply to error codes 201-xx and 202-xx: 1 Flash the ROM and retest. 2 Replace the memory and retest. 3 Replace the system board and retest.
202-xx | Memory system ROM checksum failed
203-xx | Memory write/read test failed | The following steps apply to error codes 203-xx through 210-xx:
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.
204-xx | Memory address test failed
206-xx | Increment pattern test failed
210-xx | Random pattern test failed
Diskette drive error codes
Error Code | Description | Recommended Action
600-xx | Diskette ID drive types test failed | The following steps apply to error codes 600-xx through 698-xx:
1 | Replace the diskette and retest.
2 | Check and/or replace the diskette power and signal cables and retest.
3 | Replace the diskette drive and retest.
4 | Replace the system board and retest.
601-xx | Diskette format failed
602-xx | Diskette read test failed
603-xx | Diskette write, read, compare test failed
604-xx | Diskette random seek test failed
605-xx | Diskette ID media test failed
606-xx | Diskette speed test failed
607-xx | Diskette wrap test failed
608-xx | Diskette write-protect test failed
609-xx | Diskette reset controller test failed
610-xx | Diskette change line test failed
694-xx | Pin 34 is not cut on 360KB diskette drive
697-xx | Diskette type error
698-xx | Diskette drive speed not within limits
699-xx | Diskette drive/media ID error | 1. Replace media. 2. Run Setup.

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