the 11c is completely wrong mate. Its probs the CPU
I never use the stock paste anyways so clean it off and get something like Mx4 or NH-T1 from Noctua. Remount and make sure you screw it down as tight as you can with a screw driver.
As for the rattle make sure its not something touching a fan etc. It shouldnt be the pump.
SourceCorsairGeorge said:We have recreated that noise in the lab, it only happens when the fans are at extraordinarily low RPM on the built-in fan controller. For a short term fix, you can correct this by manually raising the minimum fan speed in Corsair Link.
It can likely be corrected with a firmware and software fix. We're working on a new firmware now and will release it when complete, should be no more than a week or so.
Sorry for any stress this caused anybody. Pretty embarrassing to have a noise issue after spending a year updating a product that already had a noise issue at one point.
I've been waiting for a good review on the Thermaltake Water 2.0 Extreme . Also I'll be curious to see how well the Cooler Master Eisberg Prestige 120mm & 240mm will do. I think the Eisberg is supposed to have a copper core radiator , not sure though.