Summary: Worked extreamly well for 2 weekes, then it quit, has a 5 year warenty, but cost me $30 to ship it back. Its not worth the frustration. find another similer product that has beter quality. Cheep chinese trash, find a similar product made buy another company, and you will be happy.
Summary: the quality of the product was no good and I went to plug in the Power Supply the plug just fell apart I would not recommend this to anyone I went out and bought the brand new degree cold system from somebody else and the whole quality of this and performance of my new liquid cooled system is better
Summary: Purchased the H100 and when it arrived it did not work right out of the box. CPU overheated instantly. Changed BIOS to MAX output for fan and still nothing. The pump was no good. Sent in to Corsair and have yet to hear back from them. Purchased a Thermaltake Big Water 760 plus and it works flawlessly.
Summary: I bought this for my son, and less than two years it started smoking when the computer was turned on. There is nothing more annoying than having to contact the manufacturer and get RMAs for parts. I guess nothing lasts forever.
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: 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.