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| 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 |
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.