slight crackling sound on new Dell XPS m1530

I just got my new Dell XPS m1530.  I love it so far but had a question about the noise.

My older Inspiron doesn't make any noice at all except for the fans running.

This m1530 has a soft crackling or crunching sound.  It almost sounds like the harddrive or CPU working.  

Is this common or is there a problem with the computer?

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Forrest BurrisCommented:
Yes, it's the hard drive. Depending on what kind of laptop you have, make/model/hard drive, the hard drive makes or doesn't make noise. It's common and you shouldn't be concerned in the least. The noise should coincide with the hard drive activity light on the laptop.

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busterbritAuthor Commented:
I got the 200gb 7200rpm.  Would the 160gb 7200rpm or 160gb 5400rpm have less sound?

Why does this not happen on my older Inspiron 100gb 5400rpm?

Forrest BurrisCommented:
There are a number of different kinds of hard drives. Some make more sound than others. Asking the company you bought it from to downgrade to a 160gb 5400 wouldn't be in your best interest. Most likely they would put a (example) Western Digital in place of a Western Digital. You can try it but in my opinion, I would get used to it.
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