Summary: I was using this product for several months before my PC eventually shut down. When I opened the case I noticed green coolant liquid had leaked on everything from the radiator that is mounted above all my components. This product is labeled as a "sealed" system so I wasn't expecting leaks.
Summary: Apparently Corsair had a batch of these that were defective this year. Look online at all the complaints. I thought Corsair was a quality product but my first PC build had a bad memory stick and a bad H100 cooler. What a pain in the neck and sure did sour me on Corsair. Plus, after I sent in the H100 under warranty they emailed me back over a week later saying they had none in stock. Now 5 weeks have gone by and they finally are sending me a replacement.
Excerpt: I got this cooler when I upgraded to the AMD FX-8150. I knew for the overclocking I was planning, air cooling wouldn't cut it. So, I went (almost) all out, and got the H100 while I was in the store.
Defective out of the box, faulty Hydro series units from Corsair
5 March 2012
Summary: Purchased the H100 for a new gaming rig. Installed everything fine, did quick power/system checks before actually installing the OS etc and the cooler seemed to work fine while the case was on it's side (Corsair 800D). Once everything was up and running, the pump started to make a very loud grinding noise and could be heard over 4 120mm fans (case + radiator) and 1x 140mm exhaust fan.
Summary: So I bought this Cooler for the new LGA2011 3960x build I put together back in December. I was really excited. For 2 months the system was phenomenal. Then today, after 20+ hours of gaming, my computer shut off. I restarted it, and it bluescreened with all kinds of gibberish. I took the case door off to find that the pump had come apart and the fluid was leaking from the hose/pump connection. I hear 50/50 that you'll get a good cooler. I would advise you to stay away.
Summary: Well I thought I would be able to dodge the well known "fan controller defect" that is plastered all over corsairs forums BUT it appeared fate had different plans. The pump worked fine, but the fans would come on full blast and gradually die down in speed. No amount of button pressing would change the fan speed. I tried multiple times to reset the firmware per corsairs instructions to no avail.
Excerpt: The H100 is a great liquid cooler for anyone wanting liquid cooling temps, without the liquid cooling installation. Taking the plunge into liquid cooling can be a little tricky for a beginner, from the leak testing, to deciding the loop order, not to mention the price. For anyone a bit hesitant of taking that on, the H100 is a great choice.
Excerpt: I have an EVGA X58 Classified motherboard. It has a huge huge huge northbridge heatsink right underneath the socket. I had this fact in mind while on the market for a CPU cooler, as it obviously limited my choices. Originally I wanted to go for a high end air cooler near the $90 price point, such as the Noctua NH-D14 or the Thermalright Silver Arrow, but after some research, found out they weren't compatible, with some users having to rotate the cooler 90 degrees.