4 pin PWM fans...

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OK so just built a custom loop for Titan sli cards, nothing else in the loop. I have a 360 rad with 3 fans all with 4pin PWM connectors, and also the EK pump/res combo has a 4pin PWM fan connector. My motherboard only has 3 x 4pin sys fan connectors available. But it does also have a second CPUfan header on there currently unused. I could stick all 3 of the 360 fans into the sysfan headers, but am I right in thinking that if I plug in the pumps PWM fan into the cpu header it'll be the temperature of the cpu that dictates of the speed of the pump? Or does the pump just have a constant speed to it?
 
What motherboard do you have? You should be able to base the fan speed based on what you want, the CPU fan header is just named so for your benefit to recognise it really.

Why not use splitters? Presumably the fans on the rad are all the same and you want them running at the same speed? If so, get a 3 way PWM splitter or get two 2 way splitters and connect all 3 fans to one header. That's what I do :)
 
And with relatively little in your loop you can just set the pump to minimum and leave it. It's not really going to change anything.
 
MSI x99A Mpower. Splitters sound like a good idea, best to have the rad fans running all at same speed. I really thought the cpu fan was connected to monitor the socket temperature!
 
MSI x99A Mpower. Splitters sound like a good idea, best to have the rad fans running all at same speed. I really thought the cpu fan was connected to monitor the socket temperature!

You can adjust all of your fan speeds and curves in your BIOS, the CPU fan header is just a normal fan header called "CPU Fan" :p

You can set the fan/pump speed to be based on CPU or system temperature or just constant for any fan header in the BIOS.

Pump speed really doesn't help temps that much, just set it to go as fast as it will go before getting too noisy and you'll be fine.

There is a bit of info/screenshots on this page which might help:

http://www.hardocp.com/article/2015..._lga_2011v3_motherboard_review/3#.VoUdGllgiUl
 
Cheers Frank, seems like I've read some bum info on the interwebz then ;) Just bought some splitters as that looks like the best solution for my case. Thanks for the help, happy new year!
 
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