Dual Pump Wiring

[MinotaurGod]

Hey all... quick question about powering dual pumps, and I suppose best practices for rest of the fans.

Got a dual Koolance PMP-400 setup. Each pump has a single 3 pin for power and tach. Total max amperage for each comes in a little over 1.5, meaning I can't just split them off a single mobo header (at least for the mobos Im looking at). Are there any splitters with additional power coming from molex/sata that will allow me to keep tach for speed control? I'm having difficulty finding any.

In addition to this, I've got a nexxxos 1260 with 4 thermaltake pure 20s connected to a Phobya 1011223 splitter, and 7 (in the case) 140mm be-quite silent wing pwm hi-speeds connected to a noctua na-fh1. What would be the recommended header to use for these?

Thanks.

 

[Nebulous]

You can probably break off power and ground from each pump and using a dual 3pin to molex. That will leave you the RPM wire from each pump to connect to the mobo. You'll have readings from 2 separate pumps. You'll just have to know which wire/rpm is read from what pump.

You can also go the 3pin to molex for each pump. Again you'll have to separate the RPM wire from each pump and the results are the same.

A) dual 3pin to single molex

B) single 3pin to single molex

Yes? RPM splitter

 

[MinotaurGod]

You can probably break off power and ground from each pump and using a dual 3pin to molex. That will leave you the RPM wire from each pump to connect to the mobo. You'll have readings from 2 separate pumps. You'll just have to know which wire/rpm is read from what pump.

You can also go the 3pin to molex for each pump. Again you'll have to separate the RPM wire from each pump and the results are the same.

A) dual 3pin to single molex

B) single 3pin to single molex

Yes? RPM splitter

Hmm, if the mobo is satisfied with having only the rpm wire attached, then I suppose this should work. Is the rpm lead used only for monitoring, or is it used to control the pump speed?

 

[Nebulous]

Unsure if that koolance pump is RPM adjustable. I don't know koolance pumps as I've never used one. You'll have to test it. If it's not adjustable, then it'll only be reading. My D5 pump has an RPM wire, but only for monitoring. It does have an RPM adjust dial in the back of the pump which I have set to 50%.

 

[maxfly]

Hmm, if the mobo is satisfied with having only the rpm wire attached, then I suppose this should work. Is the rpm lead used only for monitoring, or is it used to control the pump speed?

They're only for monitoring.

 

[Railgun]

Could use this:

poweradjust 3 USB, Ultra-Variante - Aqua Computer

poweradjust 3 USB, Ultra-Variante: Das poweradjust 3 ist eine autonome Einkanal-Lüfter-/Pumpensteuerung, die außerdem auch als aquabus-Erweiterung für ein aquaero 5 oder aquaero 6 eingesetzt werden kann. Das poweradjust 3 ist vorrangig für die Steuerung von Laing DDC- und D5-Pumpen sowie...

shop.aquacomputer.de

I used a Aquaero for the same thing, but to control both independently (not that they were).

Your headers need to only be rated at 18W, and if that's peak (startup?) you can get by with something less perhaps.

EDIT:
Reading the specs of that pump, claims 20W. I'd assume many current mobos have at least a 20W header.

Which boards are you looking at?