| Symptom / Error |
FRU / Action |
| Continuous beep. |
System Board |
| One beep and a blank, |
1. LCD Assembly |
| unreadable, or flashing LCD. |
2. System Board |
| |
3. SIMM Card |
| |
4. DC/DC Card |
| One beep, and the message "Boot |
1. TPF (in Slot 1) |
| source (TPF) cannot be found" |
2. System Board (TPF Controller) |
| One beep, and the message |
1. TPF (in Slot 1) |
| "Unable to access boot source" |
2. System Board (TPF Controller) |
| One long, two short beeps and |
1. System Board |
| a blank or unreadable LCD. |
2. LCD Assembly |
| One long beep followed by four |
1. Connect an AC adapter |
| short beeps each time you press |
or install a fully charged |
| the power on/off button. |
battery. |
| |
Computer cannot power-on due to |
| |
low battery voltage. |
| One beep every second. |
1. Connect AC |
| |
adapter or install fully charged |
| |
battery (allow computer to complete |
| |
shutdown before changing the |
| |
battery). |
| |
Computer is shutting down due |
| |
to low battery voltage. |
| Two short beeps. |
1. POST error. |
| |
See 'Symptom-to-FRU Index' |
| Three short beeps. |
1. Move computer to a cooler |
| |
environment. |
| |
Battery or computer high |
| |
temperature threshold has been |
| |
exceeded. |
| Four short beeps every five seconds |
|
| and a blank LCD. |
1. System Board |
| |
2. SIMM Card |
| |
3. Modem Card |