![](/images/backgrounds/290989/hp-compaq-6000-pro-all-in-one-pc-service-and-maintain-141378117x1.png)
Table
Activity | Beeps | Possible Cause | Recommended Action |
Red Power LED flashes eleven | 11 |
times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved.
The current processor does not support a feature previously enabled on this system.
1.Install a TXT capable processor.
2.Disable TXT in the Computer Setup (F10) utility.
3.Reinstall the original processor.
System does not power on and None | System unable to power | Press and hold the power button for less than 4 | |
LEDs are not flashing. | on. | seconds. If the hard drive LED turns green, the | |
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| power button is working correctly and the system | |
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| board needs to be replaced. | |
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| OR |
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| Press and hold the power button for less than 4 | |
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| seconds. If the hard drive LED does not turn on | |
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| green then: | |
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| 1. | Check that the unit is plugged into a working |
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| AC outlet. |
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| 2. | Open hood and check that the power button |
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| harness is properly connected to the system |
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| board. |
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| 3. | Check that both power supply cables are |
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| properly connected to the system board. |
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| 4. | Check to see if the 5V_aux light on the |
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| system board is turned on. If it is turned on, |
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| then replace the power button harness. If the |
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| problem persists, replace the system board. |
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| 5. | If the 5V_aux light on the system board is |
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| not turned on, remove the expansion cards |
one at a time until the 5V_aux light on the system board turns on. It the problem persists, replace the power supply.
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 109