Summary: I have two of these on a NZXT Respire T40 in push pull and it keeps my i7-3770 OC to 3.7ghz and at idle it stays around 35C and never seen it go over 45C at loads. Its a great fan and would buy again and highly recommend to friends.
Pros: *PWM *Static pressure *Low Dba *Great air flow
Pros: - Best fan I ever had - Very very quiet - PWM fan - Good air flow - Perfect for Corsair H80i - Static pressure fan - Comes with cable extension, Y spliter and the screwless fan-mount - Very good quality sleeving (rubberised sleeving) This fan might seems expensive, but you get a very high quality fan and all the premium accessories so the price is very fair. If you hate noise you should pay for this fan, believe me you will be happy afterward.
Cons: The color scheme is ugly, but otherwise absolutely no cons
Summary: I've replaced the stock fan in my Lian Li PC-Q33B case with this one and it made a huge and immediate difference. I'm also using the Noctua NH-U14S CPU cooler. Both fans are controlled by the BIOS in PWM mode. My system is practically silent and CPU/mobo temp stays ice cold. I'm very pleased.
Pros: Great fan, lots of rubber all around to dampen vibration and noise. Lots of accessories. PWM control. Silent at low RPM, yet able to move lots of air when needed.
Summary: I have 2 of them on my hyper 212 evo, on push/pull obviously. I swear my non overclocked 3570k never goes above 45c on load. Yes, that means I am going to push the clock and see what I can get. They destroy the brush bearing xigamateks that I had before which were by far the loudest fans I have ever heard. My computer is whisper quiet now when I am just browsing the web, listening to music, or whatever light duty I am doing and it keeps it cooler.
Pros: Noctua fans without tan lines! 3000 RPM... mother of.. son of... Dropped my cpu temps by at least 7c on idle, and I'd say around 10c on load. I am pretty sure they are the best fans money can buy while maintaining a respectable noise/performance ratio. (Other than the 140mm version of this fan which is completely insane overkill) They are very quiet 1500-1800rpm, above that you can hear them, but its just air moving. I admit at 3000rpm, they can be pretty loud, but th...
Cons: Although they finally made some fans without tan color, Noctua still leaves room to desire in the aesthetics department. At least I can do a little painting if I get tired of the full black because they are a blank canvas. For almost 30 bucks a pop, LEDs would make these fans the absolute best for multiple crowds.
Summary: I am disappointed in these fans. I purchased these to replace stock fans on my CPU radiator and to add 2 more fans to the radiator in a push-pull configuration. The listed max static pressure listed is 2,61 mm H2O comparing to SP120 P.E. listed at 3,10 mm H2O, so they shouldn't be that far behind, however this is not true. These fans do not live up to the hype surrounding them.
Summary: I wanted to try them out on my CPU cooler since I enjoy OC'ing. I can now get a stable 38% overclock on my i7 980 CPU. These Noctua fans shaved 12 degrees off at 3000 RPM compared to the stock fans. They'll probably sit at low RPMs most of the time, but they should last many years, and I can always use a few 120mm fans in future builds.
Pros: - Noctua Legendary quality - Now noise at 1200 RPM - Insane CFM at 3000 RPM - Rubber cover over mounting points for vibration reduction - Surprisingly low power usage - Industrial grade 6 year warranty
Cons: - Pricey for a 120mm fan but you get what you pay for. - Noisy at 3000 RPM, but this should be expected