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Fan Controller or Splitter?

bman7842
By bman7842
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I have 4 fans total setup in my PC case, however my motherboard only has one system fan port. I have seen suggestions elsewhere of buying a fan splitter but I also read this can only support a certain number of fans. I also don't want to power these fans directly off of the power supply mainly because I don't want them running full speed at all times. I have seen others users suggest getting fan controllers, but my case does not have any optical disk drive spot to put one, I was curious if I even needed a controller or some splitter existed that could handle all four.

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https://linustechtips.com/topic/969277-fan-controller-or-splitter/
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https://www.newegg.com/Product/Product.aspx?Item=1W7-001E-00001


Deepcool fan hub. They won't run at full speed, but they will all share the same speed.

So You Wanna Be A Playa, But Your Rig's Ain't Fly,
You Gotta Hit Us Up, To Get A Pimped Out Rig,

You've Got To Pimp My Riggggggg...  (DAMN RIGHT)

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What motherboard and fans are you using?

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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2 minutes ago, WoodenMarker said:

What motherboard and fans are you using?

Motherboard: https://www.newegg.com/Product/Product.aspx?Item=N82E16813128873&ignorebbr=1&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker, LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

Fans: https://www.newegg.com/Product/Product.aspx?Item=N82E16835352025&cm_re=Dynamic_X2_GP-12-_-35-352-025-_-Product 

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19 minutes ago, bman7842 said:

Motherboard: https://www.newegg.com/Product/Product.aspx?Item=N82E16813128873&ignorebbr=1&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker, LLC-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

Fans: https://www.newegg.com/Product/Product.aspx?Item=N82E16835352025&cm_re=Dynamic_X2_GP-12-_-35-352-025-_-Product 

Running 3pin fans off of a 4pin pwm hub would result in 100% rpm since the fans would receive 12v. You should use a normal splitter instead. Are all 4 fans GP-12's? If not, what else are you using?

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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9 minutes ago, WoodenMarker said:

Running 3pin fans off of a 4pin pwm hub would result in 100% rpm since the fans would receive 12v. You should use a normal splitter instead. Are all 4 fans GP-12's? If not, what else are you using?

Oh good to know, theoretically all will be GP-12's, right now I only have 2 but will be getting more soon. So would this splitter (recommended earlier) https://www.newegg.com/Product/Product.aspx?Item=1W7-001E-00001   not run the fans on 100% despite also supporting 4 pin fans?

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7 minutes ago, bman7842 said:

Oh good to know, theoretically all will be GP-12's, right now I only have 2 but will be getting more soon. So would this splitter (recommended earlier) https://www.newegg.com/Product/Product.aspx?Item=1W7-001E-00001  not run the fans on 100% despite also supporting 4 pin fans?

The linked hub works fine if you're using dc off of the sys_fan header. I should've clarified that I was referring to externally powered hubs or using pwm in general.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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21 minutes ago, WoodenMarker said:

The linked hub works fine if you're using dc off of the sys_fan header. I should've clarified that I was referring to externally powered hubs or using pwm in general.

Okay, well thank you for telling me that the 3 pins aren’t supported on some hubs. I’ll probably just go with that splitter.

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6 minutes ago, bman7842 said:

Okay, well thank you for telling me that the 3 pins aren’t supported on some hubs. I’ll probably just go with that splitter.

They're supported in that they receive power but don't have the pwm ic needed to modulate the incoming 12v signal for anything but 100% rpm.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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12 hours ago, bman7842 said:

Oh good to know, theoretically all will be GP-12's, right now I only have 2 but will be getting more soon. So would this splitter (recommended earlier) https://www.newegg.com/Product/Product.aspx?Item=1W7-001E-00001   not run the fans on 100% despite also supporting 4 pin fans?

Better motherboards usually have 1A max rated fan outputs, which would just handle (leaving some reserve) four of those fans using normal splitter.

But as it's cheap motherboard and manual doesn't tell about max current, it might be safer to assume max current is lower.

(also its Sys_fan header doesn't support PWM control)

 

But different fans draw different amount of power/current.

For example this Scythe would draw 0,13A.

https://www.newegg.com/Product/Product.aspx?Item=9SIA9ZH6FA1779&cm_re=kaze_flex-_-9SIA9ZH6FA1779-_-Product

http://www.scythe-eu.com/en/products/fans/kaze-flex-120.html

 

13 hours ago, bman7842 said:

I have seen others users suggest getting fan controllers, but my case does not have any optical disk drive spot to put one

Fashion is unfunctional/unversatile...

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