PWM Fan - Adjust Max Speed

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jack0987

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Jan 2, 2016
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My standard AND CPU fan makes a racket at full speed.
My idea is to replace it with a better larger fan that pushes more air at a lower RPM and thus reduce the noise level.

I have a good 120mm four wire fan I can use.

How can I adjust it's max top speed yet have it run normally otherwise?

Thanks.
 
Solution
Lutfij
1| Do not strap on an aftermarket larger dia fan onto the stock AMD heatsink, it'll affect you cooling to warrant buying an aftermarket cooler/heatsink altogether.
2| You may also want to state your full system's specs in order to make sure that you're connecting the wrong component to the wrong header.
3| Not all 4 pin fans will be "good" since there are a number of them in the market ranging from good to bad to mediocre. Not to throw salt on your wounds, but you should try to be specific with your parts.
4| PWM fans will operate off of any 4 pin fan header on your motherboard but true PWM signal isn't sent for all boards across all headers and the best place to connect them is off of the CPU_FAN header since that is guaranteed to...
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Lutfij

Lutfij

Titan
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Oct 7, 2009
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1| Do not strap on an aftermarket larger dia fan onto the stock AMD heatsink, it'll affect you cooling to warrant buying an aftermarket cooler/heatsink altogether.
2| You may also want to state your full system's specs in order to make sure that you're connecting the wrong component to the wrong header.
3| Not all 4 pin fans will be "good" since there are a number of them in the market ranging from good to bad to mediocre. Not to throw salt on your wounds, but you should try to be specific with your parts.
4| PWM fans will operate off of any 4 pin fan header on your motherboard but true PWM signal isn't sent for all boards across all headers and the best place to connect them is off of the CPU_FAN header since that is guaranteed to provide a PWM signal. To answer your question, the system will do it for you unless you create a custom fan curve(or that your motherboard allows you to do it in BIOS).
 
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