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| POST Error Messages |
| POST Error Messages |
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| Screen Message | Probable Cause | Recommended Action |
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| BIOS unable to find a | Verify that the device booting from is | |
| Disk Error | suitable boot device. | bootable. Replace as needed. |
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| Warning: CPU Fan Has | CPU fan weak or not | Ensure that the computer air vents are |
| Failed. For Thermal | active. | not blocked and the chassis cooling fan |
| Protection, System will |
| is running. |
| be shut down. A 3 |
| Open hood, press power button, and |
| second long beep will |
| see if the chassis fan spins. If the fan is |
| be heard before the |
| not spinning, make sure the fan's cable |
| system will shut down. |
| is plugged onto the system board |
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| header. Ensure the fan is fully/properly |
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| installed. |
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| If fan is plugged in but is not spinning |
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| then, replace chassis fan. |
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| Replace the chassis fan. |
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| Warning: Processor Fan | Processor fan weak or not | Ensure that the computer air vents are |
| Has Failed. For Thermal | active. | not blocked and the processor cooling |
| Protection, System will |
| fan is running. |
| be shut down. A 3 |
| Open hood, press power button, and |
| second long beep will |
| see if the processor fan spins. If the |
| be heard before the |
| processor fan is not spinning, make sure |
| system will shut down. |
| the fan's cable is plugged onto the |
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| system board header. Ensure the fan is |
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| fully/properly seated or installed. |
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| If fan is plugged in and seated properly, |
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| but is not spinning, then replace |
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| processor fan/heatsink assembly. |
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| Contact an authorized reseller or service |
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| provider. |
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✎
✎
This section covers the front panel LED codes as well as the audible codes that may occur before or during POST that do not necessarily have an error code or text message associated with them.
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the computer and refer to the following table to determine the front panel LED codes.
Recommended actions in the following table are listed in the order in which they should be performed.
Service Reference Guide, dx2200 MT |