Light Pattern | Problem Description | Suggested Resolution |
|
|
|
| A possible | • Power off computer, leaving the |
| motherboard, power | computer plugged in. Press and hold |
Blinking | supply, or peripheral | the power supply test button on the |
failure has occurred. | back of the power supply unit. | |
Amber |
| If the power supply diagnostic light |
|
| |
|
| next to the switch illuminates, the |
|
| problem may be with your system |
|
| board. Contact Dell (see "Contacting |
|
| Dell" on page 159). |
|
| If the power supply diagnostic light |
|
| next to the switch does not illuminate, |
|
| disconnect all internal and external |
|
| peripherals, and press and hold the |
|
| power supply test button.If it |
|
| illuminates, there could be a problem |
|
| with a peripheral. Contact Dell (see |
|
| "Contacting Dell" on page 159). |
|
| • If the power supply diagnostic light |
|
| still does not illuminate, disconnect |
|
| the power supply from the system |
|
| board, then press and hold the power |
|
| supply button. |
|
| If the light illuminates, there could be |
|
| a problem with the system board. |
|
| If the power supply diagnostic light |
|
| still does not illuminate, the problem |
|
| is probably with the power supply. |
|
| Contact Dell (see "Contacting Dell" |
|
| on page 159). |
|
|
|
| No CPU present. | • Reinstall the processor and restart the |
|
| system. If the computer still fails to |
Steady |
| boot, inspect the processor socket for |
| damage. | |
Amber |
| • If the problem persists, contact Dell |
|
| |
|
| (see "Contacting Dell" on page 159). |
128
Troubleshooting
