Beeps | Description | Troubleshooting steps |
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3 | Base memory read/write test error | Same as for 1 beep. |
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4 | System board timer not operational. | Possible system board malfunction. To |
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| eliminate the possibility of an add |
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| problem, remove all expansion cards. |
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| ■ If the beep code occurs even when all |
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| expansion cards have been removed, the |
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| system board is at fault. |
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| ■ If the beep code does not occur when the |
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| expansion cards have been removed, one |
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| of the cards is causing the problem. Install |
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| the cards one at a time until the problem |
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| happens again. When the beep code |
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| returns, the most recent card you installed |
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| is at fault. |
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5 | A processor on the system board generated | Remove one of the processors if two are |
| an error. | installed, then try a known good processor in |
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| the first socket. |
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| Same as for 4 beeps. |
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6 | The keyboard controller (8042) may be | Remove the keyboard to see if the error goes |
| defective. The BIOS cannot switch to | away. If it does, try a known good keyboard. |
| Protected mode. | Same as for 4 beeps. |
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7 | General exception error (processor | Same as for 5 beeps |
| exception error). |
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8 | Display memory error (system video | If the system video adapter is an |
| adapter). | replace or reseat the video adapter. If the |
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| video adapter is integrated into the system |
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| board, the board may be faulty. Try using an |
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9 | The ROM checksum value does not match | Same as for 4 beeps. |
| the value encoded in the BIOS. |
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10 | The shutdown register for CMOS RAM failed. | Same as for 4 beeps. |
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11 | The cache memory test failed. | Same as for 4 beeps. |
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