POST Error Codes and Messages
Whenever a recoverable error occurs during POST, BIOS displays a message on the video display screen and causes the speaker to beep as the message appears. BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configuration fails or if an external ROM module does not a checksum of zero. The “POST Error Codes and Messages” table is a list of the error codes and messages written at the start of each POST test. The “POST Error Beep Codes” table is a list of beep codes issued for each POST test.
| POST Error Codes and Messages |
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Code | Error Message |
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0200 | Failure Fixed Disk |
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0210 | Stuck Key |
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0211 | Keyboard error |
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0212 | Keyboard Controller Failed |
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0213 | Keyboard locked - Unlock key switch |
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0220 | Monitor type does not match CMOS - Run SETUP |
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0230 | System RAM Failed at offset |
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0231 | Shadow RAM Failed at offset |
0232 | Extended RAM Failed at address line |
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0233 | Memory type mixing detected |
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0234 | |
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0235 | |
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0250 | System battery is dead - Replace and run SETUP |
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0251 | System CMOS checksum bad - Default configuration used |
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0260 | System timer error |
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0270 | Real time clock error |
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0271 | Check date and time |
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02B0 | Diskette drive A error |
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02B2 | Incorrect Drive A type - run SETUP |
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02D0 | System cache error - Cache disabled |
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0B1B | PCI System Error on Bus/Device/Function |
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0B1C | PCI Parity Error on Bus/Device/Function |
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0B30 | CPU 1 Fan Alarm occurred |
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0B31 | CPU 2 Fan Alarm occurred |
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0B32 | Chassis Fan Alarm occurred |
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