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I built my own mini 4-pins connector

post #1 of 2
Thread Starter 
Hi! I just wondering if you guys can double check my 4-pins mini adapter looks alright?

I will connect 2 Noctua fans and then plug in into my VGA's PCB.











Thanks!
post #2 of 2
PWM pinout is same as 3-pin fans with the addition of PWM signal lead.


Normal PWM 'Y' Splitter



You need the ground, 12v constant and PWM for PWM fan to function properly.
The RPM for your application is only from one fan.
(some GPUs have 5-pin headers and monitor 2 fans rpm)

For what you are doing you want it to be wired like this



I always
As compared to how I would wire with PSU power to the PWM fans and only using the GPU fan header for PWM signal and RPM.
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