760 GX Hard Drive

I cracked my 760 open to look at the hard drive. Mine is making a squeeling noise. I thought is was a regular hard drive however, I noticed some kind of circuit board on top of it. Can someone explain what it is and what drive I can buy to replace it. Thanks

Can you post numbers from the drive like model number, make, etc. The circut board is really the bottom of the drive, turn it over read and post that info so we can help you.