Diagnostic Front Panel LEDs and Audible Codes
Possibl | Beeps | Activity | Recommended Action |
e Cause | & LED |
|
|
| blink |
|
|
System | None | System does | Press and hold the power button for less than 4 |
unable |
| not power on | seconds. |
to power |
| and LEDs are | If the hard drive LED turns green, the power button |
on. |
| not flashing. | |
| is working correctly. Then, Replace the system | ||
|
|
| |
|
|
| board. |
|
|
| OR |
|
|
| If the hard drive LED does not turn on green |
|
|
| then: |
|
|
| 1. Check that the unit is plugged into a working AC |
|
|
| outlet. |
|
|
| 2. Check that both power supply cables are properly |
|
|
| connected |
|
|
| to the system board. |
|
|
| 3. 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. |
|
|
| 4. 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 |
|
|
| adapter. |
✎* Replacing the system board should ONLY be the last resort.
* * Replacing the power supply should ONLY be the last resort.
Service Reference Guide |