I have corsair h80i and it makes this weird rattling noise which is very annoying, Ive tried changing the fan speeds and things when it makes it but it doesn't go away, however if i turn of my computer and turn it back on it wont rattle. it seems that 60% of the time i boot up, it rattles and if i turn it off and turn it back on it doesn't rattle. I honestly have no idea what it is but its defiantly the h80i.
It usually starts when the light comes on .. and it has made the noise before i tried any overclocking.
Help?