connecting masterLiquid pro 240 to PSU

[jose_104]

I just purchased a masterkiquid pro 240 and I’m having a hard time figuring out how to connect the pump cable directly to the psu. Because of the 4-pin connection on the pump, I can’t find any simple solution to do so, it appears that almost every molex adapter will have only 3 pin fan connections.

I did my research on which is the best way to connect a liquid pump, and I find out that using a pwm mobo connection can be dangerous because of the varying speeds, and the best way to do so is using a 3 pin connection directly to the psu so the pump can be working at 100% all time. Therefore, why this pump is design with a 4-pin connection, that’s very confusing.

I'm using a ASUS Z170M-PLUS Motherboard, Micro ATX

I sincerely ask for some guidelines.
Thank you!

 

[raisonjohn]

You can plug the 4-pin connection on the pump to the 3-pin-to-Molex or 4-pin-to-Molex adapter, directly to the PSU. It will always run at 12V and 100% speed at all times. It is similar to plugging a 4-pin PWM fan cable to a 3-pin fan header of a motherboard with no PWM functions - it will only run in 12V DC.

Then, plug the 4-pin PWM of your 2x radiator fans in the available 4-pin PWM headers of your motherboard (the CPU_FAN and CPU_OPT).

 

[jose_104]

Ok, currently I’m working on your suggestion, but I can’t find any adapter un amazon to do so, almost every molex adapter have closed 3-pins fan connections, I guessing I’ll need to tear apart some plastic of the 3-pin terminal so I can plug the 4 pin cable.
The only one I have found is https://www.amazon.com.mx/dp/B0002344F2/ref=cm_wl_huc_continue
It’s too pricy, Anny suggestions?

 

[raisonjohn]

That's the only cable I can find as well (in Amazon.mx) - so, $388 MX$ is about ~$19 US. Cheapest I can find in US is ~$6 https://www.amazon.com/BuyCheapCables%C2%AE-Molex-Power-Adapter-Cable/dp/B005ONN4VU/ref=sr_1_1?s=aht&ie=UTF8&qid=1488048018&sr=1-1&keywords=4-pin+fan+male+to+molex+adapter Not sure if you can order that though.