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PWM splitters for fans and pump.

post #1 of 7
Thread Starter 
I have the Crosshair formula V and instead of re sleeving several fans, I was curious about putting all of my fans onto 1 header ( http://www.walmart.com/ip/48268412?wmlspartner=wlpa&adid=22222222227035695726&wl0=&wl1=g&wl2=c&wl3=56994745898&wl4=&wl5=pla&wl6=89140648418&veh=sem )
I want to include the pump into the first header and the fans in the subsequent headers. (pump is the PWM version of http://www.performance-pcs.com/d5-photon-270-reservoir-pump-combo.html )

Fans are PWM vardars. Now I know that I cant exceed 1amp per channel but I was curious about the experience that others have had with this. Will I encounter any hiccups? Is this acceptable? Since I can change the option for PWM in BIOS, I don't see how this could be a problem.
Anything I should know?
post #2 of 7
AFAIK, you wont have any problems powering your Vardar's through the Swiftech splitter. Since its powered by SATA.

However, not sure if the CHV has true PWM on all the headers (except the CPU_fan).
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post #3 of 7
Go ahead and do this. I did this for a build because the motherboard only had a single PWM controller. I built the harness since I had the parts but buying a solution would look better. At 1 amp per channel, you won't exceed that with fans. Just double-check the spec for that pump.

All done.


In short, PWM was designed to do exactly what you're doing with it.
post #4 of 7
As long as you want to control the pump from the same PWM signal as the fans. That does not really do much for a pump though, and it may be better off left running at constant RPM. Also assuming the header is true PWM and not a 4-pin header which is using DC control, and the pump is powered directly from PSU.
post #5 of 7
The Red header is the one that sends the PWM signal. Whatever is plugged in there is what the redings are from. Have fan plugged into mine.
post #6 of 7
Quote:
Originally Posted by cmpxchg8b View Post

As long as you want to control the pump from the same PWM signal as the fans. That does not really do much for a pump though, and it may be better off left running at constant RPM. Also assuming the header is true PWM and not a 4-pin header which is using DC control, and the pump is powered directly from PSU.

I agree with this, imo you don't want your pump ramping up and down with your fans. Pick a good audible speed for your pump and keep it constant. Use the CPU header for your pump and then the Swiftech hub for your fans off one of the other mobo PWM headers.
 
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by Radnad View Post

I agree with this, imo you don't want your pump ramping up and down with your fans. Pick a good audible speed for your pump and keep it constant. Use the CPU header for your pump and then the Swiftech hub for your fans off one of the other mobo PWM headers.

I agree. Constantly ramping up and and down would not be good.
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