Fan speed problem?

[Kanskov]

why can i control my exhaust fan when it is a 3 pin cable.

 

and my front case fan is stuck to its really loud speed and its very annoying. 
but my front fan is also just a 3 pin cable.

can somebody pls help me asap?

[Average Nerd]

16 minutes ago, Kanskov said:

why can i control my exhaust fan when it is a 3 pin cable.

Plug it into a case fan header on the motherboard or fan controller, and you're good to go.

3 pin fans are still controlled, but they don't report their current speed to the fan controller, unlike 4 pin fans.

[Robchil]

that is a DC connector, power controlled, 4 pin is PWM and signal controlled. 

you'll have to set your fan header to DC in bios to control them. auto should usually do it but not always.. 

 

 

[Average Nerd]

19 minutes ago, Robchil said:

that is a DC connector, power controlled, 4 pin is PWM and signal controlled. 

I thought 3 pin fans are still PWM, but don't report speed?

[Robchil]

13 minutes ago, Average Nerd said:

I thought 3 pin fans are still PWM, but don't report speed?

no

[Average Nerd]

Just now, Robchil said:

no

Well I learned something today.

[Robchil]

4 minutes ago, Average Nerd said:

Well I learned something today.

if you look on some controllers, you will find that you can use either.. except on PWM socket 1.. that's where it get's the fan signal. 

 

[leclod]

And Fan Control is a great app to control fans in windows, lets you do anything.

I think the rpm cable is the 3rd one

Edited January 9, 2024 by leclod

[Kanskov]

8 hours ago, Robchil said:

that is a DC connector, power controlled, 4 pin is PWM and signal controlled. 

you'll have to set your fan header to DC in bios to control them. auto should usually do it but not always.. 

 

 

The front case fan. Dont show up in bios?

is that because i haven’t connected to motherboard?

[Kanskov]

7 hours ago, leclod said:

And Fan Control is a great app to control fans in windows, lets you do anything.

I think the rpm cable is the 3rd one

I already have that program installed but the front case fan don’t show up.

is it because i have connected it to PSU?

[Robchil]

2 minutes ago, Kanskov said:

The front case fan. Dont show up in bios?

is that because i haven’t connected to motherboard?

probably..  .. you have only one? 

 

[Whatisthis]

4 hours ago, Kanskov said:

I already have that program installed but the front case fan don’t show up.

is it because i have connected it to PSU?

All fans need to be connected to the motherboard or a fan hub to be controllable. If you are straight-lining power from the PSU you don’t have any control over fan speed.

[Kanskov]

20 hours ago, Robchil said:

probably..  .. you have only one? 

 

yeah only 1 front fan. but its 200mm so its giving enough air i think

[Kanskov]

16 hours ago, Whatisthis said:

All fans need to be connected to the motherboard or a fan hub to be controllable. If you are straight-lining power from the PSU you don’t have any control over fan speed.

alright i will try to connect it to motherboard. but will my led light thing still work then?

i got led light in my fan