Fans with no power supply connector

[RunToomey]

I don't know what its called... they have 4 prongs that connect to your power supply. Well I have a fan that has only 2 bare wires... how do I attatch it to the power supply, I have already burned 2 PSUs. The sparks scare me http://sysopt.earthweb.com/forum/frown.gif. The fan is a Panflo DC Brushless that I pulled from an AT Dell PSU.

[OuTpaTienT]

All fans have only 2 wires that make them function. The other wires are misc junk, like rpm sensors, or what-not.

Your 2 wire fan should have 2 different color wires, usually one red & one black, but might be some other color and black.

Black is ground (-)
Red is hot (+)

Most fans are 12v(olts). It should say somewhere on the fan. So you want to connect it to your PS positive(+) 12v line and to the ground(-).

A standard PS has 12v(+) running in the yellow wires. You want to connect your fan's red(+) wire to the PS' yellow wire.

As you may have already guessed, the PS' ground wires are black. Connect the fan's black wire to the PS' black wire.

That's it. The fan should work. Oh, btw, do all the connection (splicing) with the PS unplugged.

[bhess]

If you've already burned up two PS (2x $50 =$100) Why not just buy a new fan? $12 http://sysopt.earthweb.com/forum/biggrin.gif

or just splice it to another fan in your case?

[RunToomey]

I don't care about the power supplies... they are old AT PSUs from Dell Desktops. When the wires touch each other the fan in the back stops spinning... and all the lights die out... its dead http://sysopt.earthweb.com/forum/frown.gif. I just don't want to spend money, you know!