It sounds like a loud whirring/clunking/grinding. I assumed it was the hard drive but everthing is working properly. It is not the disc drives as when those ramp up there is not any change in the sound. It occassionally will get worse and then go back to more of a constant hirring/clunking/grinding sound. It sounds like a good whack would sort it out but of course I have not done that.
Any chance of an unseen diagnosis on something like this? I would rather not have to take it to a shop. (I would have to remove all the porn first, who needs that bother!!

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Thanks.