TroubleshootingSymptom Charts/Power - 4
Power
Computer won’t | 1 | If sleep LED is continually on, backup battery power has been |
power up |
| interrupted. Restart computer by holding down |
|
| Control and power on key. Wait 5 seconds and press power on |
| 2 | key. If computer doesn’t restart, repeat |
| Try | |
| 3 | Try |
| 4 | Connect power adapter and restart computer in |
| 5 | Verify PMU cable is fully seated on I/O logic board. |
| 6 | Disconnect internal keyboard and try powering up unit. If unit |
| 7 | powers up, replace keyboard. |
| Verify that microprocessor card is seated firmly in connector. | |
| 8 | Replace sound card. |
| 9 | Replace power supply card. |
| 10 | Replace PMU card. |
| 11 | Replace I/O logic board. |
| 12 | Replace microprocessor board. |
