That's why at even the lowest fan speed setting, small fans on CPU coolers will be whining at 2,000+RPM. A case of protecting the user from themselves, unfortunately. That is, particularly for CPU cooler fans, to NOT allow them to not spin at all, at the minimum fan speed setting. But it is virtually impossible to deal with all fans, with one main issue that must be dealt with. A 20mm fan spinning at 500RPM is worthless, not that a 20mm fan at 5,000RPM is much better.įan speed control on mother boards attempts to deal with the huge range of fan speed behavior of different fans. That's impossible when fans exist in sizes from 20mm to 200mm, or more. Plus there is no standard for a fan's speed at an applied voltage.

The smaller the fan they use, the louder they will be, since they must run at high speeds to compensate for the small fan. Stock, inbox CPU coolers are notorious for being loud. You've got both a 970 M Pro3 and 970 Pro3 boards mentioned in your post, although it makes no difference with the memory clearance and a Hyper 212 EVO, as I said in your thread about the clearance question. I'm going to look at a Cool Master Hyper 212 EVO which should run quieter once I've confirmed it'll fit in the 970 Pro3 motherboard and not foul the high fins on my Corsair Vengence RAM

I've reduced the fan target speed down to 2 but in order for this to make a difference, I've also had to let the CPU temperature got up to 60C (default is 45C) otherwise the target fan speed doesn't make much difference - the stock fan is so crap that it struggles to ever get the CPU temperature down to 45C so runs at a higher speed anyway. Sounds like a jet engine in the living room! So I found this post useful in understanding the overclocking settings so that at least when idle, the fan is just annoying as opposed to unbearable. I'm not so impressed with the stock cooler on the AMD FX 6350 which sounds like a jet engine. I've just bought a 970M Pro3 motherboard which I'm very impressed with.

Linux cpu fan control