Activity | Beeps | Possible cause | Recommended action | |
|
|
|
|
|
Red Power LED flashes eleven | 11 | The current processor does | 1. | Install a TXT capable processor. |
times, once every second, |
| not support a feature |
|
|
followed by a two second |
| previously enabled on this | 2. | Disable TXT in the Computer Setup (F10) |
pause. Beeps stop after fifth |
| system. |
| utility. |
iteration but LEDs continue until |
|
| 3. | Reinstall the original processor. |
problem is solved. |
|
| ||
|
|
|
| |
|
|
|
| |
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 white, the | |
|
|
| 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. |
|
|
| OR |
|
|
|
| Press and hold the power button for less than 4 | |
|
|
| seconds. If the hard drive LED does not turn on | |
|
|
| white then: | |
|
|
| 1. | Check that the unit is plugged into a |
|
|
|
| working AC outlet. |
|
|
| 2. | Open hood and check that the power button |
|
|
|
| harness is properly connected to the system |
|
|
|
| board. |
|
|
| 3. | Check that both power supply cables are |
|
|
|
| properly connected to the system board. |
|
|
| 4. | Check to see if the 5V_aux light on the |
|
|
|
| system board is turned on. If it is turned on, |
|
|
|
| then replace the power button harness. If the |
|
|
|
| problem persists, replace the system board. |
|
|
| 5. | If the 5V_aux light on the system board is |
|
|
|
| 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 199