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Help a newbie with Fan Controller

159 views 2 replies 2 participants last post by  shhek0 
#1 ·
Hello guys,

Please assist me with some technical questions about a purchase of a Fan Controller.

I am going to buy something relatively cheap like this or this

The fans i would like to control are the Air Series SP120 LED

I have some questions:

1. Would it be possible to leave the CPU fan of my cooler being controlled by the motherboard as of right now or would I have to connect it to the Controller as well.( in order to control the 3 pin fans?)

2. Probably the most important question: my fans are only 3 pin and at 100% they are very load so with a controller will they run at 50% because i think this would be okay as noiseq output as I have read that many fans have problems running for example below 60%.

Sadly i threw away by mistake the warranty other wise would just go for a low noise Noctua fans ( even though no LED) however if some of those cheap fan controllers would be able to put them at 50% without the need of the CPU fan to be attached to the controller it would be great.

Please excuse if such topics are existing on the forums I just want to be sure not throwing away any money.

Thanks in an advance to anyone who would reply to this topic!

Best regards,
 
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#2 ·
Quote:
Originally Posted by shhek0 View Post

Hello guys,

Please assist me with some technical questions about a purchase of a Fan Controller.

I am going to buy something relatively cheap like this or this

The fans i would like to control are the Air Series SP120 LED

I have some questions:

1. Would it be possible to leave the CPU fan of my cooler being controlled by the motherboard as of right now or would I have to connect it to the Controller as well.( in order to control the 3 pin fans?)

You can connect your CPU fan to either the motherboard (and the motherboard will control the speed based on the CPU temp it sees) or connect it to the controller and manually set the speed.

2. Probably the most important question: my fans are only 3 pin and at 100% they are very load so with a controller will they run at 50% because i think this would be okay as noiseq output as I have read that many fans have problems running for example below 60%.

It really isn't percentage that matters, it's the voltage that matters. The problem is that most fans, though they will run at 5 volts, won't start up at voltages less than 5 volts. But both of those controllers have a lowest voltage setting of 4 volts, so just bumping the voltage up a a little will get the fans spinning at the slowest possible speed. Both have higher settings if you need then to run faster for better cooling.
,
Fan controllers with knobs are easier to make accurate setting with.
 
#3 ·
@billbartuska

Thank you. In this case I would go with the Deepcool fan controller as it fairly cheap and should get the job done fairly well( and that build of mine is cheap anyway
biggrin.gif
)
 
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