"Problem" whit Caviar Balck 750GB AAEX

Hello!
I`ve a problem whit my new HDD Caviar Black 750GB AAEX…sometimes the disc make a rare noise, like that: crrr crrr crrr. Not is permanent, only when  the disc need read or write. So, it is a problem? or it is normal??

My motherboard is a ASUS M3A78-EM.

Please help me!!!

PD: My english y so bad because im Argentinian…

Well you can always test the drive with chkdsk or other utilities to verify if the drive is the issue.

You can check this article for more info :

How to tell if the noise the drive is making is normal