POST Error Messages
Diagnostic Front Panel LEDs and Audible Codes (Continued)
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| Possible |
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Activity | Beeps | Cause | Recommended Action | |
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Red Power LED | None | Processor | 1. | Ensure that the computer air vents |
flashes two times, |
| thermal |
| are not blocked and the processor |
once every second, |
| protection |
| cooling fan is running. Leave a |
followed by a |
| activated: |
| |
| A fan may be |
| back of the system unit and above | |
The Power LED will |
| blocked or not |
| the monitor to permit the required |
continue flashing |
| turning. |
| airflow. |
until the problem is |
| OR | 2. | Open hood, press power button, |
resolved. |
| |||
| The |
| and see if the processor fan spins. If | |
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| the processor fan is not spinning, | |
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| heatsink/fan |
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| make sure the fan's cable is | |
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| assembly is |
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| plugged onto the system board | |
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| not properly |
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| header. Ensure the fan is | |
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| attached to |
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| fully/properly seated or installed. | |
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| the processor. |
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| 3. If fan is plugged in and seated | ||
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| properly, but is not spinning, then |
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| replace processor fan. |
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| 4. | Reseat processor heatsink and |
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| verify that the fan assembly is |
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| properly attached. |
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| 5. Contact an authorized reseller or | |
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| service provider. |
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Red Power LED | None | Processor not | 1. | Check to see that the processor is |
flashes three times, |
| installed (not |
| present. |
once every second, |
| an indicator of | 2. | Reseat the processor. |
followed by a |
| bad | ||
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| ||
| processor). |
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| |
The Power LED will |
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continue flashing until the problem is resolved.
Troubleshooting Guide |