Rattling PC fan after power outage

djamesw

Honorable
Jan 13, 2014
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10,510
So I bought a Cyberpower PC over the summer on amazon and its been solid so far (a definite upgrade from my previous Dell Dimension 8600 with a Pentium IV) I can fix the problem I mentioned in the subject, I was just hoping someone might be able to explain it to me. I have a CoolerMaster Elite 431 Black / Blue Mid-Tower Gaming Case
 

No2rdame

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Aug 21, 2013
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10,960
One of my case fans has an annoying rattle when its power is reduced. I'm not necessarily sure if that's the problem you're encountering but if you can see if you can increase the fan's RPMs and see if that takes care of it.
 

No2rdame

Honorable
Aug 21, 2013
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Mine is on a surge protector. The fan controller occasionally resets from manual to automatic and when that happens the rattling occurs. I simply switch it back to manual operation. It's a minor nuisance, so I'm not too worried. I may one day look into a better fan controller, but this happens so rarely it's not worth much time to deal with right now.