PWM to 3-pin?

ttaskmaster · 21 Oct 2014 at 12:15

Heya,

Quick question - Can I cut the 4th wire off a PWM fan and end up with a normal 3-pin voltage-controlled fan?

Dempsey22 · 21 Oct 2014 at 12:34

You don't have to, just connect the 4 pin fan to the 3 pin header on mobo. You wont have PWM control thats all.

ttaskmaster · 21 Oct 2014 at 12:49

No no... these are 4-pin fans on 4-pin headers.
I wish to disable PWM and have purely voltage-controlled fans.

Dempsey22 · 21 Oct 2014 at 12:53

Oh sorry wasn't sure.

I think you can disable PWM control in the bios ?

ubersonic · 21 Oct 2014 at 12:56

What motherboard?

Tealc · 21 Oct 2014 at 12:57

ttaskmaster said:
No no... these are 4-pin fans on 4-pin headers.
I wish to disable PWM and have purely voltage-controlled fans.

That rather depends on your motherboard. If you motherboard can be switched to voltage control then the 4 pinners will work more or less as if they were 3 pinners.

ZXSpectrum · 21 Oct 2014 at 13:12

Yeah you can just snip/remove the pwm control wire.

ttaskmaster · 21 Oct 2014 at 13:34

ubersonic said:
What motherboard?

Dunno. One of the RoG ones. Rampage, perhaps?
Belongs to a friend.

Tealc said:
That rather depends on your motherboard. If you motherboard can be switched to voltage control then the 4 pinners will work more or less as if they were 3 pinners.

Good point.
Will try that out and see if it achieves the desired result.