Ok. So I've installed the H60, but the pump is making a loud sound, best described as a hard drive thinking. I'm assuming this is not normal as for the 1st minute it was running it was silent. Will this horrible noise go away, I've send my issue to corsair support as this sound does not seem normal. But what do you guys think, I've read on the forums some people say it goes away after an hour, while some does not and I should rma?
If it persists, you might have better luck by undoing the block giving the whole unit a shaking and make sure your Radiator lines are at the bottom instead of at the top. Air travels up not down in liquid. If it's already that way then just make sure you return it as it was and make sure to change the TIM before putting it back onto the CPU. If the TIM is still fresh, use a Razor blade scrape off what you can to reapply after rolling into a ball. If that ball is not the size of a reasonable sized pea then you will need to replace it with fresh TIM.
You don't want to mix it with fresh TIM even if it's the same brand type(Shin Etsu G751) because air can get trapped between the two substances which can affect the temps just as easily as air trapped in the lines.
Hope this helps and welcome to the Hydro Series Club.