Beep Symptoms

Beep Symptoms

Symptom/Error	FRU/Action
Continuous beeps.	System Board
One beep and a blank	1. Reseat all LCD connectors
unreadable, or flashing LCD.	2. LCD Assembly
	3. System Board
	4. DC/DC Card
One beep, and the message	1. Boot device
'Unable to access boot source'	2. System Board
One long, two short beeps and	1. System Board
a blank or unreadable LCD.	2. LCD Assembly
One long beep followed by	Connect the AC Adapter
four short beeps each time	or install a fully-charged
the power switch is operated.	battery.
(System cannot power-on due
to low battery voltage.)
One beep every second.	Connect the AC Adapter
(System is shutting down	or install a fully-charged
due to low battery voltage.)	battery (allows 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