Most probally you need to reformat your computer. It's a hardware problem.
First of all this is a over a 11 month question without a reply by the poster so responding to it probably wont help him/her out.
Second, why would formatting the SOFTWARE on the computer fix a HARDWARE issue?
If anyone else is having the problem google 'startup beeps' and should be a quick resolution by replacing the defective/dmg hardware.
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