![](/images/backgrounds/290733/hp-compaq-dc7608-convertible-minitower-pc-service-and-maintain-141667217x1.png)
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| POST Error Messages |
| POST Error Messages (Continued) |
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| Screen Message | Probable Cause | Recommended Action |
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| Memory module is | If additional memory was recently | |
| Single Bit Errors in | experiencing correctable | added, remove it to see if the problem |
| DIMM slot(s) | errors. | remains. |
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| If memory module was not recently |
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| installed and frequency of error message |
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| increases, consider replacing the |
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| module. |
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| Check product documentation for |
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| memory support information. |
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| A memory module in | Verify proper memory module type. | |
| memory Module in | memory socket identified | Try another memory socket. |
| memory Socket(s) | in the error message is | Replace memory with a module |
| X,X, X | missing critical SPD | |
| conforming to the SPD standard. | ||
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| information, or is | |
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| incompatible with the |
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| chipset. |
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| Populated DIMM | Rearrange the DIMMS so that each | |
| Configuration Warning | configuration is not | channel has the same amount of |
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| optimized. | memory. |
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| Recently added memory | If additional memory was recently | |
| Exceeds Maximum | module(s) exceeds the | added, remove it to see if the problem |
| Supported | supported memory | remains. |
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| amount for the system. | Check product documentation for |
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| memory support information. |
Recently added memory | If additional memory was recently |
module(s) support ECC | added, remove it to see if the problem |
memory error correction. | remains. |
| Check product documentation for |
| memory support information. |
Keyboard failure. | Reconnect keyboard with computer | |
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| turned off. |
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| Check connector for bent or missing |
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| pins. |
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| Ensure that none of the keys are |
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| depressed. |
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| Replace keyboard. |
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I/O board keyboard | Reconnect keyboard with computer | |
Controller Error | controller. | turned off. |
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| Replace the system board. |
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Service Reference Guide, dc7600 |