How to connect multiple fans on one channel AND display correct RPM?

Mayh3M · 11 Dec 2014 at 13:25

Hi.

I bought a Lamptron FC5v2 fan controller and hooked up 3 fans on 2 of the channels each using BitFenix Alchemy 3-Pin to 3x 3-Pin adapters. Everything is functioning properly except the RPM readouts which hover around 300-500 regardless of how fast the fans are spinning.

I read up on this and found that I need to cut the sensor wire (yellow) on 2 out of 3 fans so that the controller doesn't receive mixed signals.

I wanted to know the best way to go about this. Should I cut the wire on the fan ends? or the 3-pin to 3x 3-pin adapter? How should I cut through the sleeves covering the wire? Should I tape each end of the cut wire after doing so? etc. etc.

Mayh3M · 11 Dec 2014 at 14:51

You mean these metal pins?

Mayh3M · 11 Dec 2014 at 15:15

All right thanks.

Mayh3M · 11 Dec 2014 at 17:07

Just to follow up on this, how do I tell which wire lead is the RPM one on an all black fan cable? Am I forced to cut to find out?

Mayh3M · 11 Dec 2014 at 17:37

Ah the fact that the two opposite sides aren't identical mean you should definitely be able to know which wire is which even without coloured wires. That's what I was looking for. Thanks.

Mayh3M · 11 Dec 2014 at 18:58

Is masking tape or sellotape suitable for taping the exposed wire once I take it out?

Mayh3M · 11 Dec 2014 at 20:31

Worked like a charm. I'm glad I didn't have to cut anything and can easily undo everything I did if need be. Thanks for the help doyll. Much appreciated.