| Symptom / Error |
FRU / Action in Sequence |
| Continuous beeps. |
System Board |
| One beep and a blank, |
1. Reseat the LCD connector. |
| unreadable, or flashing LCD. |
2. LCD Assembly |
| |
3. System Board |
| One beep, and the message |
1. Boot device |
| 'Unable to access boot source'. |
2. System Board |
| One long beep, two short beeps, |
1. System Board |
| and a blank or unreadable LCD. |
2. LCD Unit |
| One long beep followed by |
Connect the AC Adapter or install |
| four short beeps each time |
a fully charged battery. |
| the power switch is operated. |
|
| (System cannot power on |
|
| because of low battery voltage.) |
|
| One beep every second. |
Connect the AC Adapter or install |
| (System shuts down because |
a fully charged battery (allows |
| of low battery voltage.) |
system to complete shutdown before |
| |
changing the battery) |
| Two short beeps with error codes. |
POST error. See 'Numeric Error Codes' |
| Two short beeps with blank screen. |
System Board |