UPDATE!!
I was in the process of rebuilding my x axis carriage and I ended up rewiring everything. I recently came upon a load of fancy igus flex wiring (which is also shielded) so I decided to use that and replace all the crappy copper coated tin stuff that was there before.
Long story short- the fans are quiet as can be now. Of All the things I thought the new wire would possibly improve that was on the bottom of my list.
SO… if you have noisy blower fans when they are subject to PWM- get some nice wire.
Does anyone have a good source for flexible stranded all copper wire? It always seems way to expensive or like the seller may be trying to push copper coated stuff as all copper.
