Connecting 4-pin case fans to built-in fan controller

[Joaco_Leon]

Hi everyone.

I just finished building my first computer but the case only came with one fan, so im going to buy two 4-pin fans tomorrow (idcooling NO-12025-W White LED)

The case (Deepcool Dukase V2) came with a fan controller with a 3-speeds fader. It has a molex connector that i connected to the PSU and 3 4-pin male connectors (though they are only 4-pin in size, because they have only 2 wires connected each).

The fan that came with the case is a 3 pin fan and it worked just fine with the controller. My question is, will the 4-pin fans work? Will their LEDs work?

Thanks!

 

[madmatt30]

Hi everyone.

I just finished building my first computer but the case only came with one fan, so im going to buy two 4-pin fans tomorrow (idcooling NO-12025-W White LED)

The case (Deepcool Dukase V2) came with a fan controller with a 3-speeds fader. It has a molex connector that i connected to the PSU and 3 4-pin male connectors (though they are only 4-pin in size, because they have only 2 wires connected each).

The fan that came with the case is a 3 pin fan and it worked just fine with the controller. My question is, will the 4-pin fans work? Will their LEDs work?

Thanks!

should still work mate,the fan controller controls by voltage so only needs 2 cables ,what you will fnd though is that if you lower fan speed with the controller it also lowers voltage to the led so theyll go dimmer.
That cant be helped at all
2/3rd fan speed & above shouldnt be too noticeable

 

[Joaco_Leon]

should still work mate,the fan controller controls by voltage so only needs 2 cables ,what you will fnd though is that if you lower fan speed with the controller it also lowers voltage to the led so theyll go dimmer.
That cant be helped at all
2/3rd fan speed & above shouldnt be too noticeable

Thanks for the reply! I have another question now:

Do these controllers make use of the whole spectrum of a fan speed? For example, if the controller has 3 positions and i plug a 2000 RPM to it, will the fan run at 666, 1333 and 2000 respectively?

Because it would be overkill to buy a 2200 RPM fan that wont go above 1500 RPM.

Thanks once again!

 

[Paperdoc]

Yes, the whole range will be used. The controller does NOT know anything about fan speed. It only sends out fixed voltages, and the fan does what it can with that. When the controller sends out max voltage (12 VDC), the fan will run full speed.