Table
Activity | Beeps | Possible Cause | Recommended Action | |
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Red Power LED flashes nine | 9 | System powers on but is | 1. | Check that the voltage selector, located on the |
times, once every second, |
| unable to boot. |
| rear of the power supply (some models), is set |
followed by a two second |
|
|
| to the appropriate voltage. Proper voltage |
pause. Beeps stop after fifth |
|
|
| setting depends on your region. |
iteration but LEDs continue until |
|
| 2. | Replace the system board. |
problem is solved. |
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| ||
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| 3. Replace the processor. | |
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|
Red Power LED flashes ten | 10 | Bad option card. | 1. | Check each option card by removing the card |
times, once every second, |
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|
| (one at a time if multiple cards), then power |
followed by a two second |
|
|
| on the system to see if fault goes away. |
pause. Beeps stop after fifth |
|
| 2. | Once a bad card is identified, remove and |
iteration but LEDs continue until |
|
| ||
problem is solved. |
|
|
| replace the bad option card. |
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| 3. Replace the system board. | |
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| |
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. Try the | |
|
|
| following: | |
|
|
| 1. | Check that the voltage selector (some models), |
|
|
|
| located on the rear of the power supply, is set |
|
|
|
| to the appropriate voltage. Proper voltage |
|
|
|
| setting depends on your region. |
|
|
| 2. Replace the system board. | |
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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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|
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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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|
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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 system |
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| board is turned on. If it is turned on, then |
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| 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 not |
|
|
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| 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.
ENWW | Interpreting POST diagnostic front panel LEDs and audible codes 117 |