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Fan power and control configuration advice

post #1 of 3
Thread Starter 
Hi
I am wondering if I could get some advice about my fan power and control configuration.

I am running 2 loops with a 480 rad in each loop. Each rad will have 8 PWM fans http://www.enermax.co.uk/fans/cluster-adv/
I have to use an old Gigabyte X58 UD5 MB (for now) and from it only has 1 PWM connector available (the other will be taken by the RPM wire from the CPU loop pump

I am wondering if I could use a splitter like this: http://www.performance-pcs.com/pwm-wye-y-cable-sleeved.html
Connected to 2 distribution blocks like this: http://www.performance-pcs.com/modmytoys-4-pin-pwm-low-profile-power-distribution-pcb-8-way-block.html
Do you think this scheme would allow control of the fans by the MB?

Is there a better way to do this? I really DON’T want a manual control situation or have to stick a bunch of separate temp sensors around.

I like how the Grid 2, Corsair commander connect to a USB on the motherboard but they don’t seem to use PWM (I think they have only 3 pin fan connectors and not enough wattage to handle that many fans) The Aquario costs WAY too much. mad.gif

Is there another PWM fan controller that connects to the motherboard by USB header?

What other options are there?

Thanks in advance!!! smile.gif
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post #2 of 3
You've got it. That solution will work just splendidly to control all 16 fans with the same PWM signal, though you'll still need a couple female to female regular 4-pin fan cables to connect the y-cable to the distribution blocks. Alternately, you could just use a female to female y-cable instead of the female to male y-cable you selected if you can find one.

If you want to control the fans in your second loop separately, you will need another PWM signal. Sadly, I don't know of a cost-effective pwm controller with an automatic fan curve that doesn't involve "sticking a bunch of separate temp sensors around."

I'm willing to bet, though, that since you have two loops you have at least one graphics card under water. Some graphics cards have their own pwm headers, which can be automatically controlled like your motherboard's header. All you'll need is one of these, and a female to female 4-pin fan cable to connect to the distribution block, and you'll be able to have the fans on your two loops run on separate pwm signals.

Also, this y-cable from PPCs is cheaper than the one you linked. Unless you plan on opting for their custom sleeving/heatshrink options, I promise it will perform just as well as the other.
post #3 of 3
Thread Starter 
Quote:
Originally Posted by gftgy View Post

You've got it. That solution will work just splendidly to control all 16 fans with the same PWM signal, though you'll still need a couple female to female regular 4-pin fan cables to connect the y-cable to the distribution blocks. Alternately, you could just use a female to female y-cable instead of the female to male y-cable you selected if you can find one.

If you want to control the fans in your second loop separately, you will need another PWM signal. Sadly, I don't know of a cost-effective pwm controller with an automatic fan curve that doesn't involve "sticking a bunch of separate temp sensors around."

I'm willing to bet, though, that since you have two loops you have at least one graphics card under water. Some graphics cards have their own pwm headers, which can be automatically controlled like your motherboard's header. All you'll need is one of these, and a female to female 4-pin fan cable to connect to the distribution block, and you'll be able to have the fans on your two loops run on separate pwm signals.

Also, this y-cable from PPCs is cheaper than the one you linked. Unless you plan on opting for their custom sleeving/heatshrink options, I promise it will perform just as well as the other.

Thanks very much for the help!!
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