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Advice on fan control -- Too many fans for motherboard control?

post #1 of 22
Thread Starter 
Hi all, this is my first build in a long time and first water cooled system ever. I just ordered all the parts yesterday, but realized in doing so that there is still one open question, which is how fan control is actually going to work. Since I am doing 3 radiators, all with push/pull, I will end up having 24 fans in total in the system and 2 pumps:

-8x 120mm DarkSide Gentle Typhoons (No PWM pretty sure)
-12x 140mm Noctua NF-A14 iPPC-3000 (PWM)
-3x 140mm Corsair AF-140 Quiet (No PWM)
-1x 120mm Corsair AF-120 Quiet (No PWM)
-2x EK D5 pumps (PWM)

So my question is, where do I plug all this into and control it safely? I would think that if I went with a PCB block like --> http://www.performance-pcs.com/modmytoys-4-pin-power-distribution-pcb-8-way-block.html and plugged 8 of these 140mm fans into it, that this would put way too much strain on the Asus Rampage V motherboard. Additionally, I'm not sure these fans would work in this setup with or without PWM. Furthermore, when I add in the pumps and such and even if I broke up the fans into sets of 4 on the motherboard headers, wouldn't this be too much? Do I need/want a fan controller and if so, which one would you all recommend? I am open to any approach.

Thanks!
post #2 of 22
Just do yourself a favor and get an Aquaero (5/6, LT/PRO/XT) whichever flavor you please and enjoy the power of being fully in control of your system. Considering that's roughly 750$ of fans and pumps, what's another 75-200, depending on which model you get...
I recently got the Aquaero 6 Pro - http://www.performance-pcs.com/aquacomputer-aquaero-6-pro-usb-fan-controller-grafik-lcd.html - and it's just awesome. You would also need two PowerAdjust for controlling the pumps - http://www.performance-pcs.com/fan-control/aquacomputer-poweradjust-3-usb-standard-series.html - one for each pump, but frankly I just run the pump at the highest speed that's not noisy.
You will not be disappointed with one of these!

Edit: I run 15 AP-15s and a D5 pump
Edited by GetToTheChopaa - 9/30/15 at 7:56pm
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post #3 of 22
PWM fans are easy to control since you can power them directly from PSU and feed PWM signal from motherboard headers. I have 24 fans total in my build, all PWM, and all are controlled from the motherboard - up to 8 fans per header, plus the pump.

Of course dedicated fan controller will work just fine and add some extra options.
post #4 of 22
Thread Starter 
Quote:
Originally Posted by GetToTheChopaa View Post

Just do yourself a favor and get an Aquaero (5/6, LT/PRO/XT) whichever flavor you please and enjoy the power of being fully in control of your system. Considering that's roughly 750$ of fans and pumps, what's another 75-200, depending on which model you get...
I recently got the Aquaero 6 Pro - http://www.performance-pcs.com/aquacomputer-aquaero-6-pro-usb-fan-controller-grafik-lcd.html - and it's just awesome. You would also need two PowerAdjust for controlling the pumps - http://www.performance-pcs.com/fan-control/aquacomputer-poweradjust-3-usb-standard-series.html - one for each pump, but frankly I just run the pump at the highest speed that's not noisy.
You will not be disappointed with one of these!

Edit: I run 15 AP-15s and a D5 pump

Thanks for this! So are these three components really all I need? Does the controller come with splitters and all that to connect the 24 fans to this thing? Also, how come you went with the Pro vs the XT? Their site is a bit confusing with info. I've seen people mentioning having to heat sink cool or water cool this thing also?

Thanks again!
post #5 of 22
Quote:
Originally Posted by dy29102 View Post

Thanks for this! So are these three components really all I need? Does the controller come with splitters and all that to connect the 24 fans to this thing? Also, how come you went with the Pro vs the XT? Their site is a bit confusing with info. I've seen people mentioning having to heat sink cool or water cool this thing also?

Thanks again!


Actually, you dont need the power adjust. The AQ6 will do you fine. The AQ6 has all 4 channels on PWM. The only voltage controlled are the Darkside GT's and AF fans.

You can install a HS + WB for it. But its not needed. The HS is beneficial if all your channels are voltage controlled (and high draw fans) and more than (5) fans per channel. Since (2) channels are PWM and (2) channels are voltage controlled, the current draw is minimal.

You just need a PWM splitter for the D5 pump, Noctua fans and regular 3-pin splitter for the GT and AF fans. You can sort it out like this:

  • CH 1 - GT's
  • CH 2 - Noctua fans
  • CH 3 - Corsair fans
  • CH 4 - D5 pumps
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post #6 of 22
Quote:
Originally Posted by dy29102 View Post

Thanks for this! So are these three components really all I need? Does the controller come with splitters and all that to connect the 24 fans to this thing? Also, how come you went with the Pro vs the XT? Their site is a bit confusing with info. I've seen people mentioning having to heat sink cool or water cool this thing also?

Thanks again!


My mistake, those are PWM pumps so no need for PowerAdjust. But, I have been reading that there are some problems with non AquaComputer D5 PWM pumps. Don't know if you have the pumps yet, but if you don't get the AC D5 - http://shop.aquacomputer.de/product_info.php?language=en&products_id=3255 - this way it will be 100% compatible. Seems all non-AquaComputer D5 PWM pumps have a non-standard PWM implementation, hence the issues. (just like the Corsair PWM fans)

http://www.overclock.net/t/1474470/ocn-aquaero-owners-club/0_100 here you'll find more info that you need.

Regarding the splitters, no it does not come with any, but there are tons of different fan splitters you can get. Especially, since you have a mix os 3 pin and 4 pin, I suggest you make your own splitters. That's the route I took, initially I wanted to buy a standard splitter - http://www.performance-pcs.com/darkside-3-pin-triple-radiator-3x-fan-y-splitter-cable-jet-black-sleeved.html - like this one, but it would have to be tailored to fit my case perfectly anyway and I decided to make my own custom length fan splitters. You can group fans however you wish and it's easy to hide because it's custom length. Can post some pics if you want.
Pro vs XT, the only differences between the two is the remote that comes with the XT and touch screen. Don't need any of those! Actually, I may remove the screen on my 6 pro. I bought the Aquaero 5 LT and coincidentally I sold it to Ironsmack,( Hi Joe! biggrin.gif) because I really wanted the optional heatsink that the Aquaero 6 has - http://shop.aquacomputer.de/product_info.php?products_id=3175 -. The heatsink isn't really needed, I wanted it for aesthetic reasons only.
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post #7 of 22
Thread Starter 
Quote:
Originally Posted by GetToTheChopaa View Post

My mistake, those are PWM pumps so no need for PowerAdjust. But, I have been reading that there are some problems with non AquaComputer D5 PWM pumps. Don't know if you have the pumps yet, but if you don't get the AC D5 - http://shop.aquacomputer.de/product_info.php?language=en&products_id=3255 - this way it will be 100% compatible. Seems all non-AquaComputer D5 PWM pumps have a non-standard PWM implementation, hence the issues. (just like the Corsair PWM fans)

http://www.overclock.net/t/1474470/ocn-aquaero-owners-club/0_100 here you'll find more info that you need.

Wow, this is unfortunate. I already ordered the EK D5 pumps, so I guess I can just give them power and then set their speed manually? They have a manual switch/control or something on them or I can do it via motherboard?
Quote:
Originally Posted by GetToTheChopaa View Post

Regarding the splitters, no it does not come with any, but there are tons of different fan splitters you can get. Especially, since you have a mix os 3 pin and 4 pin, I suggest you make your own splitters. That's the route I took, initially I wanted to buy a standard splitter - http://www.performance-pcs.com/darkside-3-pin-triple-radiator-3x-fan-y-splitter-cable-jet-black-sleeved.html - like this one, but it would have to be tailored to fit my case perfectly anyway and I decided to make my own custom length fan splitters. You can group fans however you wish and it's easy to hide because it's custom length. Can post some pics if you want.
Pro vs XT, the only differences between the two is the remote that comes with the XT and touch screen. Don't need any of those! Actually, I may remove the screen on my 6 pro. I bought the Aquaero 5 LT and coincidentally I sold it to Ironsmack,( Hi Joe! biggrin.gif) because I really wanted the optional heatsink that the Aquaero 6 has - http://shop.aquacomputer.de/product_info.php?products_id=3175 -. The heatsink isn't really needed, I wanted it for aesthetic reasons only.

It sounds like in the above owners thread that this controller struggles with a bunch of PWM fans as well! I would love to see pics of your setup, as I am guessing I would have to fabricate 8-way splitters to accommodate 24 fans like I have? I like this idea of the block setup --> http://www.performance-pcs.com/modmytoys-4-pin-power-distribution-pcb-8-way-block.html as I believe this would work well in my SMA8 case mounted in the bottom bay and I could just connect 8 fans to one and then 4 to another one down in the basement of case? I believe that this PCB version won't work with AquaComputer though as it needs to just be a splitter if I am following.
post #8 of 22
Thread Starter 
Quote:
Originally Posted by Ironsmack View Post

Actually, you dont need the power adjust. The AQ6 will do you fine. The AQ6 has all 4 channels on PWM. The only voltage controlled are the Darkside GT's and AF fans.

You can install a HS + WB for it. But its not needed. The HS is beneficial if all your channels are voltage controlled (and high draw fans) and more than (5) fans per channel. Since (2) channels are PWM and (2) channels are voltage controlled, the current draw is minimal.

You just need a PWM splitter for the D5 pump, Noctua fans and regular 3-pin splitter for the GT and AF fans. You can sort it out like this:

  • CH 1 - GT's
  • CH 2 - Noctua fans
  • CH 3 - Corsair fans
  • CH 4 - D5 pumps

Thanks for this Ironsmack! It sounds like the AQ6 is not going to work with my EK D5 pumps and so I will have to connect those to motherboard or something. Do you recommend any temperature sensors or anything? I guess i can just manually control fans from the AQ6 front panel. It sounds like the water cooling for it won't be necessary for me either, even though i'll have 24 fans connected to it.
post #9 of 22
Quote:
Originally Posted by dy29102 View Post

Wow, this is unfortunate. I already ordered the EK D5 pumps, so I guess I can just give them power and then set their speed manually? They have a manual switch/control or something on them or I can do it via motherboard?
It sounds like in the above owners thread that this controller struggles with a bunch of PWM fans as well! I would love to see pics of your setup, as I am guessing I would have to fabricate 8-way splitters to accommodate 24 fans like I have? I like this idea of the block setup --> http://www.performance-pcs.com/modmytoys-4-pin-power-distribution-pcb-8-way-block.html as I believe this would work well in my SMA8 case mounted in the bottom bay and I could just connect 8 fans to one and then 4 to another one down in the basement of case? I believe that this PCB version won't work with AquaComputer though as it needs to just be a splitter if I am following.

The D5 Vario have a knob that can be set and forgot, but didn't you get the PWM version? If you can, return them and get the Vario or the Aquacomputer D5. My Swiftech D5 PWM doesn't show rpm with in Aquasuite, maybe I'll sell it and get the AC D5...
Currently, I have two triple radiators with Corsair SP120s on two Swiftech 8 way splitters - http://www.performance-pcs.com/pwm-cables/swiftech-8-way-pwm-splitter-box.html - and they are controlled very nicely. So, the Swiftech pcb splitter works with Aquaero, but don't know about the MMT you linked. My CL S8 isn't finished, but I connected all the AP-15 just to see them run biggrin.gif.

Pics of my (still a long way off completion!!!) fan setup:

Four fans in the front as intake, rear fan as exhaust and side radiator chamber fan as exhaust, all connected with a splitter to a single fan header on the Aquaero.






Single 360 rad on the side mount, three fan splitter to a single fan header.


Two 360 rads in the top drop in, all 6 fans connected with one splitter to a single fan header



Edit: Splitters will be cut to length and sleeved once the Aquaero is installed.
Edited by GetToTheChopaa - 10/1/15 at 9:45am
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post #10 of 22
The 12 Noctuas all together could pull up to near 80w (6.6w each x 12) at 100% fan speed, I thought the AQ6 limit per channel was something like 30-45w max?

More than likely they would almost never be run at that speed but at startup a fan typically draws its full rated amount or even more, so this is something to consider.

You may have to power from PSU using a splitter like this, http://www.akasa.com.tw/search.php?seed=AK-CB002

I actually made a custom splitter kind of like that for my Delta fans, powered from PSU and the PWM signal is sent to my GPU where I control it through MSI Afterburner.
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