System Beep Codes
If an error that cannot be reported on the screen occurs during POST, the system may emit a series of beeps that identifies the problem.
NOTE: If the system boots without a keyboard, mouse, or monitor attached, the system does not issue beep codes related to those peripherals.
If a beep code is emitted, write down the series of beeps and then look it up in Table
Table
Code | Cause | Corrective Action |
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CPU register test failure | ||
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| |
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CMOS write/read failure; faulty | Faulty system board. See "Getting Help" on | |
| system board | |
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BIOS error | Reflash the BIOS. | |
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Programmable | Faulty system board. See "Getting Help" on | |
| faulty system board |
64 KB of main memory
26About Your System