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post #11 of 62
You could either exchange the SP fans, or get a fan controller for them.
But honestly, using PWM to control rad fans is a very innefective way to do it. Unless you use tge very pricey Aquaero 6 controller, or if you only have a CPU block and no VGA block.
I'll explain why PWM is not a good way to control your rad fans is you want.

Really, the very best way to control your rad fans is a fan controller, and a water temperature sensor.
Edited by PepeLapiu - 3/7/14 at 3:01pm
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post #12 of 62
Thread Starter 
Quote:
Originally Posted by PepeLapiu View Post

You could either exchange the SP fans, or get a fan controller for them.
But honestly, using PWM to control rad fans is a very innefective way to do it. Unless you use tge very pricey Aquaero 6 controller, or if you only have a CPU block and no VGA block.
I'll explain why PWM is not a good way to control your rad fans is you want.

Really, the very best way to control your rad fans is a fan controller, and a water temperature sensor.

Hmm... I can see that. PWM is reliant only on the CPU temp and may not be what's needed for the whole system? For instance, if I was to do cryptomining the GPU's would be running crazy hard while the CPU isn't doing a thing and the fans stay low.

Is there is an analog controller I can use that has input from a temp sensor? With a regular analog controller, will it be finding a good RPM with the knobs to set it and forget it, or you have to adjust it all the time?

The only issue I see, is with this 540 case, the controller will be sideways.
Edited by frunction - 3/8/14 at 10:01pm
post #13 of 62
Let's say you have PWM control based on CPU temps for your rads.
You go play a game, your GPU gets hot, your water gets hot too. Now would be a good time to speed up your fans.
But your CPU is idle when gaming. So you CPU goes for a cool nap and tells your controller to slow down the fans when you need them to speed up for your GPU.
There are other reasons why PWM is not the best way, but this is the main reason for me.

The Lamptron CW611 has a pretty good automatic feature.
Once you set it correctly, you can basically forget about it forever.
Tho it is a front bay devise, you could theorically stuff it somewhere in a dark spot hidden away inside you case.
It's a bit pricey at 100$ but very good build quality. And with 36W per channel, you could even control your pump with it.
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post #14 of 62
I bought the swiftecch splitters as well and that was a mistake. Sp120 and that 8 way doesn't work that well I just used modmytoys fan splitter pcb
post #15 of 62
Thread Starter 
Guess this buying mistake is actually better! Thanks for helping me understand why PWM is not the best way to go.

I went with a bitfenix recon as the lamptron was just a bit too pricey. I'll just need to figure out how to use the channels and temp sensors properly. Also, not sure if there's a way to get it to use water temp as all those sensors look 2wire.
Edited by frunction - 3/9/14 at 10:10pm
post #16 of 62
IS that the 35x or 35x2 ?
Quote:
Originally Posted by PepeLapiu View Post

Let's say you have PWM control based on CPU temps for your rads.
You go play a game, your GPU gets hot, your water gets hot too. Now would be a good time to speed up your fans.
But your CPU is idle when gaming. So you CPU goes for a cool nap and tells your controller to slow down the fans when you need them to speed up for your GPU.
There are other reasons why PWM is not the best way, but this is the main reason for me.

The Lamptron CW611 has a pretty good automatic feature.
Once you set it correctly, you can basically forget about it forever.
Tho it is a front bay devise, you could theorically stuff it somewhere in a dark spot hidden away inside you case.
It's a bit pricey at 100$ but very good build quality. And with 36W per channel, you could even control your pump with it.

I can't recall my CPU being anywhere near idle when gaming .... my idle temps are in 20s..... gaming temps are typically 55 - 65C for the CPU while GPU temps are way down at 39-44C even under Furmark.

You have several options.....

Use separate fan curves for ya pump, case fans and rad fans.
Connect ya Rad fans to a PCB and connect that to the GPU fan header
Use temp sensors for coolant or even for each rad to control fan speeds

To say "PWM is not the best way" I think doesn't convey what you intended..... I think you want to say "controlling the fans by CPU temp is not the best way."....PWM and VCC (variable voltage control) are just 2 different ways of doing the same thing.....controlling fan speed. One does it by constant voltage and turning the power on and off .... longer breaks between pulses mean slower speeds..... and the other does it by lowering voltage to get lower speeds.
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post #17 of 62
Hey sorry to Hi jack your thread but i had a question for everyone i am running XT 240 and XT 360 with a EK CSQ cpu block and 3 XSPC GPU Blocks on my Ti's with a single D5 Vario, should i run GPU's in Series or Parrallel they are currently in series, also should i add another D5 pump or add a DDC pump.
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post #18 of 62
also make sure the fan controller is a reducing controller not a pulsing controller. that may cause problems with sp120s as well. they would tick.
post #19 of 62
Which controls are reducers
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post #20 of 62
Lamptron are the only pulsing controllers.
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