Fan Controlling PWM and non PWM

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J

JohannVI

Commendable
Sep 25, 2016
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Hello everyone,

following situation:

2 Systems need to be silent.

System no.1 (media PC):
Case: Fractal Design Node 605
MOBO: Gigabyte GA-X38-DQ6 (rev. 1.0)
2 x 80mm PWM Case Fan
2 x 120mm non PWM Case Fan
1 x 100 mm non PWM CPU Fan

System no.2 (Gaming machine):
Case: Fractal Design R3
MOBO Gigabyte GA-Z77X-UD3H
3 x 120 mm PWM Case Fan
1 x 120 mm PWM CPU Fan

The Motherboards are giving me headaches. I've been fiddling on the gaming machine with Speedfan and got it done but would like to have a better solution. The CPUs and GPUs won't get dangerously hot anyways.

So I'm envisioning a static low RPM for the media PC and a PWM controlled RPM for the Gaming Machine.
For the Gaming Machine I'd just go with something like this:
http://gelidsolutions.com/thermal-solutions/accessories-pwm-1-to-4-splitter/
and run them all off the CPU PWM header controlled by the bios.

For the Media PC though it gets a bit more tricky because of different sizes of the fans and no PWM.
I could connect the 80mms to the CPU PWM header and connect the others to something else. Problem is none of the other headers on the board supports neither PWM nor voltage control via bios. So I think I won't get around getting a more expensive Fan controller at least be able to control them at all. It doesn't have to have any nice front panels because the case doesn't have any slots anyways.

Do you guys have any other ideas on how to solve this?

Thanks in advance!
 
Solution
J
The final and to me most cost efficient and still controllable solution is this:

The Media PC's fans are all (besides the CPU fan) hooked up to the Node 605's fan controller (one splitter for the 2 80mms).
Thanks again @misteriosly for reminding me that the case actually has a fan controller^^.

For the Gaming machine I chose my original idea as a solution and I'm currently using a 1-5 PWM Splitter with additional SATA Power supply and control all the fans in the case (all same brand, model and size) with the CPU connector on the board.

Thanks everyone!
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M

misteriosly

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Jun 1, 2015
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Both cases are having fan controllers.
Cpu fan is always connected to cpu fan header.
Other 3 fans are connected to the tree channel fan controller.
For the media PC you have one additional fan 80mm type you can just split one of the fan headers from the fan controller since those fan controllers are rated for 15W, where FD fans are really low watts
http://support.fractal-design.com/support/solutions/articles/143026-silent-series-r2-what-is-the-power-drawn-by-your-fans-
So this solves all your fan problems i guess ? With the integrated controller.
If you are going to add custom fans, just watch out how much wattage in total they are.
 
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J

JohannVI

Commendable
Sep 25, 2016
12
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1,520
First off thanks for the answer!

I honestly completely forgot about the included fan controllers >_>

I should be good for the media PC.

For the Gaming Machine though as they are all 4 Pins, the controller itself only has 3 pin connectors. So to avoid more cable cluttering by including additional adapters, is there anything that speaks against connecting all fans (including the cpu cooler) to this:
https://images-na.ssl-images-amazon.com/images/I/61gqR9JGAkL._SL1088_.jpg
and connect that to the CPU header and the SATA power connector?
The Fans are all consumer grade Noctuas (NF12's) iirc.
Cheers!
 
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misteriosly

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Jun 1, 2015
605
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I would never recommend connecting the CPU fan, to a splitter or anything of that sort.
Connect CPU fan to CPU fan header. Other 3 fans to Integrated controller.
Fractal R3 Has enough space between side panel and chassis for cable management.
Would hide all the cables, and can be tied really clear using some Velcro's or those plastic straps, that usually most of the cables are tied with.
How many fans are you putting on your Gaming PC ?
I don't see how will there be less cable clutter, with more cables involved.
 
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J

JohannVI

Commendable
Sep 25, 2016
12
0
1,520
I have 3 NF12s. One of them goes onto the CPU Cooler.

I have another 2 120s (one from the Scythe Mugen 3 and one no-name) PWMs lying around. But I read it was a bad idea mixing fans controlled by the same controller (I would have to check the exact wattages etc to be sure if it was true).

X + 1 CPU fan is the plan. Then again it depends on how many would make sense and where to place them.

I'm running an i5 3570k and a Gigabyte 1060 GTX G1 Gaming.

The cluttering would be caused by one additional cable (3->4pin adapter).

But I might be overreacting.
 
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M

misteriosly

Reputable
Jun 1, 2015
605
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5,360
So in total you want to place 5 fans, not count the cpu right ?
You can connect 4pins to 3pin Integrated controller without a problem tbh, it controls them on pure voltage regulation.
But if u really gonna add 5fans, you would need an additional fan controller, wont suggest ya to split CPU header or overload integrated fan controller.
Whats your mobo ?

 
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J

JohannVI

Commendable
Sep 25, 2016
12
0
1,520
The final and to me most cost efficient and still controllable solution is this:

The Media PC's fans are all (besides the CPU fan) hooked up to the Node 605's fan controller (one splitter for the 2 80mms).
Thanks again @misteriosly for reminding me that the case actually has a fan controller^^.

For the Gaming machine I chose my original idea as a solution and I'm currently using a 1-5 PWM Splitter with additional SATA Power supply and control all the fans in the case (all same brand, model and size) with the CPU connector on the board.

Thanks everyone!
 
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