Step aside outdated "Speedfan" app, here is your successor.

If you want full control of all your fans (Including GPU fans) then this app is King and it's free. When I say, "Full control", I don't mean that you can just control all your fans, I mean fully control all your fans simply and creatively. The app is call "Fan Control". JayzTwoCents has a great get started video:

https://www.youtube.com/watch?v=uDPKVKBMQU8

Download app from Github: https://github.com/Rem0o/FanControl.Releases

Here is how I have mine setup: https://imgur.com/nzEz9z4

Here are a few things you can do with "Fan Control" (Look at the picture in the link above to get an understanding):

• Create as many fan curves that you want or need

• Each fan curve can be assigned to a thermal sensor (CPU, GPU, or whatever sensors the motherboard is reporting).

• You can combine individual fan curves into a Mix group

• You can assign a fan curve to fan that is connected to a fan header, or you can assign it to a "Mix group". Any fan or set of fans that is assigned to a Mix group will automatically be assigned to the fan curve that has the highest temperature sensor (it will switch back and forth between the hottest sensor that a Mix group is assigned too). Remember each created fan curve is assigned to a sensor (CPU, GPU, or whatever sensors the motherboard is reporting).

• You can do the same thing with GPU fans and anything connected to fan headers that some GPU cards have.

• There is a lot more features

• The Fan Control project is quite active with timely updates which can add new features.\

For those resisting by saying that FanSpeed is good enough or FanSpeed is simple and easy to use also need to know that the last day FanSpeed was updated was 21st of February 2015. That is over 7 years now, and it wasn't even built for Windows 10 or Windows 11.

Please NOTE: The app doesn't install on your computer; it runs with the unzipped folder. This allows you to move the folder to wherever you want (Even on a flash drive).

FYI - For Mac users running Windows: Most of you probably have a MacBook/Pro which is a laptop. It will not work as the developer states that laptops are not supported.

Ryzen 7 9800X3D

Gigabyte RX9070XT

Patriot Viper Venom 64GB 6000mhz DDR5

GIGABYTE B840M DS3H

BeQuiet 850W Modular 80+ Gold

Lian Li DAN A3 Black/Walnut

Samsung 990 EVO Plus 2TB

ARCTIC Liquid Freezer III Pro 360

I've been troubleshooting this all day yesterday and found no precedent for this specific isssue so I thought I'd ask around on reddit to see if anyone has any idea or could maybe help

My fans keep spinning up to 50% (1500RPM) and then back down to 0% every five or so seconds for no apparent reason

This is not tied to the BIOS fan curve which I have edited countless times and seems to be completely ignored as soon as I boot into Windows 11

Fans are set to PWM in BIOS

Fan curve is set to slope in BIOS with the temperature interval setting at 3 for maximum delay

This is not controllable through a software like FanControl, which seems to only trigger the fans during it's auto detection where it spins ALL connected fans up to 75% for a few seconds

I am running an ARCTIC Liquid Freezer III Pro 360 ( connected throught the 3-wire option ) on a Ryzen 7 9800X3D sitting on a Gigabyte B840M DS3H

Pump is plugged into CPU_OPT

Radiator is plugged into CPU_FAN

VRM is plugged into SYS_FAN1

Pump seems to be controllable as that fan curve is set to be mostly flat and it isn't loud and displays as 2000RPM in any software I check

The temperatures are very good, roughly 40-45 C in idle and below 60 in games and the temperature does not seem to have any bearing on the cooler either

There is no pattern visible in any software that would give a clue as to what is happening, there is no temperature or load increase visible in Argus Monitor, CoreTemp or HWinfo that would explain the behaviour

What the hell is happening?