User blog comment:Sebi99cl/It actually sounds like it's gonna explode..../@comment-26104528-20150903201554

Sebi, if you can still read this stuff, I'd STRONGLY SUGGEST, no wait. Go back your hard drive up, like NOW. That's not a suggestion.

The fan's probably part of the problem, but in my experience its generaly when the hard drive and some other internal parts that start dying that your lappy makes horrible noises.