POST Error Messages
POST Diagnostic Front Panel LEDs and Audible Codes| Activity | Beeps | Possible Cause | Recommended Action |
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Green Power LED | None | Computer on. | None |
On. |
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Green Power LED | None | Computer in | None required. Press any key or move the |
flashes every two |
| Suspend to RAM | mouse to wake the computer. |
seconds. |
| mode (some |
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| models only) or |
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| normal Suspend |
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| mode. |
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Power LED flashes | None | Processor thermal | Ensure that the computer air vents are not |
every 4 seconds. |
| protection | blocked and the processor cooling fan is |
This continues until |
| activated: | running. |
the issue has been |
| A fan may be | Open hood, press power button, and see |
resolved. |
| blocked or not | if the processor fan spins. If the processor |
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| turning. | fan is not spinning, make sure the fan's |
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| OR | cable is plugged onto the system board |
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| The | header. |
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| If fan is plugged in but is not spinning, | |
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| assembly is not | |
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| properly attached | then replace processor fan. |
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| to the processor. | Reseat processor heatsink and verify that |
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| the fan assembly is properly attached. |
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| Contact an authorized reseller or service |
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| provider. |
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Power LED flashes | None | Reseat DIMMs. Power on the system. | |
five times, once |
| error. | Replace DIMMs one at a time to isolate |
every second, |
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| the faulty module. |
followed by a two |
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| Replace |
second pause. |
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| memory. | |
LEDs continue until |
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| Replace the system board. | |
problem is solved. |
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Service Reference Guide, dx2200 MT |