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PWM pump + fans

post #1 of 7
Thread Starter 
I got a water cooling loop and a bunch of PWM Noctua fan on my rads, connected to the CPU fan connector with a splitter.

I just realized that my motherboard (Sabertooth z77) has a CPU OPT fan connector.

Now I know that I can't plug a PWM pump with PWM fans on the same header. But can I connect a PWM pump on that OPT header?

Thanks.
post #2 of 7
you can. the OPT header mirrors the main CPU header.
 
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by ez12a View Post

the OPT header mirrors the main CPU header.

So wouldn't that be the same as plugging the pump and the fans on the same header?
post #4 of 7
I believe the power is supplied separately, the control is the same.

if you're in doubt and want to unload the header from having to supply power, grab one of these http://www.swiftech.com/8-waypwmsplitter.aspx
 
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post #5 of 7
Thread Starter 
That's actually the splitter I have thumb.gif . Five NF-F12 are connected to it, and it does a great job.

I'm not concerned by the power. The reason why it is not advised to connect different type of fans and/or a pump on the same PWM header is the RPMs. That's why I was wondering if the CPU OPT was working as an independent PWM controller, able to control a PWM pump while the primary CPU header handles the fans.
post #6 of 7
ah yeah at least in my P8Z68, there's only one adjustment for both CPU and CPU_OPT. CPU OPT isnt independent, it mirrors the main CPU header in terms of PWM control.
 
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Crucial M4 128GB + 1TB F3 + 2x 640GB Black RAID0 H220 + 2x GT AP-15 Alphacool ST30 + PWM Helix push/pull Windows 7 Ultimate x64 
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post #7 of 7
What would be an option to control a PWM pump and a set of PWM fans?
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