Don't be fooled by the 77 CFM specs, with high static pressure these fans actually perform better than the 100 CFMF140 version. At 100% they make very little discernible noise. The only time these fans need to run at 100% is blowing air under your graphics card while gaming. In any case, you should play with 7.1 surround sound headphones so that you can even hear a small amount of noise at 100%. I also use P120 fans on my CPU tower cooler and rear exhaust. They also achieve better performance under high static pressure compared to a pure high CFM fan. I've found that if you overtighten the screws, the fan frame seems to flex a bit, throwing the balance off balance and causing the fan to rub a bit. You have to be careful not to over-tighten the seams. I see people complaining about this in the comments. Don't listen to these people, they obviously know nothing and lack common sense. I currently have 2 F140 top intake, 2 P140 front intake, 1 P120 rear exhaust and 2 push/pull P120 on a Coolermaster Hyper. 212 CPU tower cooler. I don't go over 65C on the CPU stress test and the GPU (Gigabyte 1660 Super OC) doesn't go over 66C when playing a game at maximum settings. (gtav, witcher3, rdr2)
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