Dropping the pump speed should lower the noise, just like this review says . First, I could NOT drop the pump speed with any of the mobo fan controllers, not by hardware, and not by software, although with the same mobo, yes, I could lower the speed of the fans (H50 fan, Noctua, Silverstone...), so...

65c is nothing for a graphics card. You can say it's hot when it starts going over 80c but not before. GPUs are made to work at those temps unlike CPUs. Most GPU don't even start to throtle before 90c+ ! I'm happy to hear that :D. Anyway the problem I experienced was not throttling, but the whole s...

darkb: Did you actually try any kind of speed control on the pump at any point ? Yes, I tried the Asus mobo fan controllers, two of them, CPU and Chassis 1, and none of them made any difference in the sound level of the H50. Although the Noctua fan didn't work with the CPU fan controller, it did fi...

I finally got the refund on the Corsair H50 and used the stock cooler for a while. The Noctua NH-D14 came today. I seriously doubted about purchasing it for its high weight, but now I'm very happy because it gets even more securely fixed to the MOBO than what I thought. Really solid. And about the c...

I knew the great cooling properties of the Noctua, but never saw a comparison. Great news for me. Here there's only 1 EUR difference between the Noctua and the H50. I've already returned the H50 and now I'm waiting for the Noctua. Meanwhile I've saved the recordings of the noise so if someone is cur...

There's no doubt that for you it is best to find another cooling solution, but for people who didn't manage a REAL quiet system the H5O might still be an option. Anyway I wish you success with finding a better cooling setup, the eternal search for all of us continues. Yes, I said that... I'm going ...

I think the pump's noise is very high and prominent for a Silent PC, specially if you tried to silence your hard drives or using 2.5" or SSD drives.

New topic on my impressions with the H50:
viewtopic.php?t=57737

You make me happy danimal, so you let me repeat it once more. It's the H50 pump , that makes much more noise (and different) than the fan on the radiator (at 700~800 rpm, using Asus QFan in the Bios), although I didn't even put the Corsair's fan because I think the Silverstone's one was even more qu...

It's because of that topic you're linking that I decided to post this one, so that other SPCR users have more information, although I couldn't actually watch the video due to my slow internet connection. In global terms, in a standard PC, I think it won't be noisy at all, but inside a quiet PC as mi...

I've just bought a Corsair H50 Hydro Series CPU cooler, and I've to say that I'm not happy with it in terms of silence, altought it can be perfect for overclockers who don't care noise. The fact: the H50's pump makes a very prominent sound in my quiet system. I would personally compare the pump nois...