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how can you make a liquied cooler run without connecting it to motherboard?

post #1 of 15
Thread Starter 
hello guys,

a friend of mine is a computer engineering student, he is doing some kind of a project, he is using a Corsair H80i liquid cooler, he wants to use it to cool something (a project for his college), BUT his project does not involve a motherboard, and the liquid cooler will not run unless connected to a motherboard; right? rolleyes.gif

so how can we make the corsair H80i pump work without connecting it to a motherboard to make it cool the thing he is doing (I mean his project biggrin.gif)?


need help please otherwise my friend will fail his project biggrin.gif
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post #2 of 15
There are adapters for 4 pin to 12v molex conversion. You can use that to turn on the pump.
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post #3 of 15

The h80i has a sata power connector to power it so you dont need a motherboard. just use a standard psu and jump the psu using the paperclip method. or you can get a sata/molex psu.

 

But as Andr3az said you will need to convert the rad fans to as you can't plug them into the pump because the fan speed is controlled by the 3 pin.


Edited by ozlay - 2/9/16 at 1:40pm
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post #4 of 15
Thread Starter 
thanks for the suggestions can just connect the water pump and the fan to the psu every thing should work fine, ya?
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post #5 of 15
Quote:
Originally Posted by SsXxX View Post

thanks for the suggestions can just connect the water pump and the fan to the psu every thing should work fine, ya?

Absolutely. It doesn't even have to be a computer PSU. Any 12V source will do. You could very easily rig up a 12V plug in converter.
post #6 of 15
Quote:
Originally Posted by ciarlatano View Post

Absolutely. It doesn't even have to be a computer PSU. Any 12V source will do. You could very easily rig up a 12V plug in converter.

What ciarlatano said. thumb.gif Just be sure the 12v source is powerful enough.

All fan plugs are the same on first 3 pins. Ground, 12v or variable voltage and rpm signal from fan. . 4th pin is only used on PWM fans and is PWM signal to fan.
post #7 of 15
I have one of these for this type of situation. It makes it very easy to test fans, pumps, power HDDs, whatever you want really, without messing with a whole PSU. Just put in whatever kind of adapter you need and you're good to go.

http://www.coolerguys.com/840556029977.html
post #8 of 15
You could, cut the 3pin for the fans and pump.

Wire them up and solder the wire onto a 12V power supply or a varible 12V power supply.
Otherwize, you could solder multiple 3pin plug onto a 12V power supply and hook the fans onto that
post #9 of 15
I have the above noted power adapter I use to run my loops for leak testing. Its a great system because then none of my components are running, and I don't have to have a spare power supply!
post #10 of 15
That is a power supply...

As someone with Computer Engineering degree, one should know how to jumper the green and a blank pin on a PSU to turn on a 5V or 12V device.
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