Originally Posted by stereopc
I have a question on fan control. The fans that come with the case don't plug into the motherboard (890FXA-GD70) 3 pin power source unless I missed something. Anyway, the case fans seem nice and quiet but the CPU cooler (CM Hyper 212+) fan is loud. Do I need to get a fan control for it or should the motherboard be controlling it? Should I get a more quiet fan? Both? I would love to hear some solutions or insight form you guys! I am currently only using stock fans on the case because I am not overclocking ...yet. Also, I only have the one stock fan on the CM 212+. My cpu is the AMD Phenom II 1090T BE. Thanks for your help in advance!
It depends on the motherboard how to do it. Gigabyte boards normally allow you to manually control the fan speed through the PWM CPU connector on the board using SpeedFan. Asus boards normally don't have that capability. I'm not sure about other brands, but some will and some won't. Any board that has a 4 pin PWN connector on the board can be set to use PWM to automatically control the fan speed to slow it down under a light load and speed it up as the demand and temps dictate. It actually works fairly well most of the time.
Be careful getting a quieter fan for the 212+ though as it will more than likely lower the cooling capacity and efficiency. The BladeMaster that comes with the 212+ has a LOT of static pressure which is what allows it to work so well on a heatsink or radiator as the static pressure is what forces the air through the fins. Quieter fans tend to have a lot less static pressure so they can't force the air through the fins and therefore can't cool as well. A Medium Speed Yate Loon would be a fairly good choice as a quieter fan that still has adequate static pressure to be effective, but you would probably have 3 -4C higher temps compared to the stock BladeMaster. That would be fine at low system load, but depending on the CPU you have and how much (if at all) you OC your system along with your ambient room temps it might not work that well when you push the system.
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