PWM Y-Splitter only runs one fan?

Reppyboyo · 1 Jul 2015 at 20:46

Hi,

Im trying to run 2 fans on my radiator but I can only get one fan working.
Using a Y-splitter cable, the fan that is connected to the full 4 pin plug works fine. The one with 3 pins wont work at all.

Any idea why this is or just a faulty y splitter?

Reppyboyo · 1 Jul 2015 at 21:07

No, both are 4 pin PWM fans. (Akasa Piranha)

Reppyboyo · 1 Jul 2015 at 21:26

No.
They are both 4 pin plugs but one has a pin missing, the 'sense' pin.

Reppyboyo · 1 Jul 2015 at 21:31

Yep, swapping just reverses which fan works.

Reppyboyo · 1 Jul 2015 at 21:46

Aye thought as much, always good to double check.

That'll teach me to buy the cheapest one i found on the bay.