I hear from my mbp a strange noise like fax.. i have a record

My macbook pro 13" 2009 started to make a strange noise like a fax, but a lot shorter.. It's like 3 notes repeating itself...
does someone know what it stands for? is something wrong with my computer?
I have a reseller warranty, what do I tell my reseller to fix it?
HERE IS A RECORD OF THE NOISE: (BETTER USE EARPHONES)
http://www.youtube.com/watch?v=V2UlYTJX2kA
Message was edited by: MosheA
Message was edited by: MosheA

It could be hard drive noise. You might want to try running SMART Utility:
http://www.apple.com/downloads/macosx/systemdiskutilities/smartutility.html
You can download the demo and run it several times for free. It will give you a comprehensive view of the physical health of your drive. It seems to be somewhat more sensitive than Disk Utility, and may be able to detect impending drive failure sooner.
If you haven't already, run the extended version of the Apple Hardware test--always a good thing to do with a used machine.
Good luck!

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I hear from my mbp a strange noise like fax.. i have a record

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