Usually a repeated beep sound indicates a problem with memory modules.
First use the following steps:1
Disconnect battery and adapter (if connected)2
If there are any devices connected to any USB ports, disconnect the same.3
Wait for 2 minutes.4
Press and hold down the power button for 30 seconds and then release power button5
Connect adapter (do not connect the battery yet) and try to start by pressing the power button.
If you still get the beep sound, the next step will be to check memory modules1
Turn off the system2
Disconnect adapter and battery3
Open the memory access cover at the back of the system4
Take out the memory module(s).
Be very carefull
. There are two ejector clips in both sides of the memory slot. Release the ejector clips by gently pulling them out of the sides of the module.
Gently pulling both clips at the same time will release the memory module.
The following video will provide more details:http://www.youtube.com/watch?v=yirNejnzbEM
(it is for different make/ model number, but the principles will be same)5
Reinstall memory module(s)
If you have two memory modules installed, then try to test with a single module at a time
Let me know the results so that I can follow up further
Edited by Santonu on 11/14/2010 at 7:20 PM EST