Fan wiring


Joined
Sep 27, 2010
Messages
132
Reaction score
4
I'm going to fix a fan from a failed psu into the side of my PC case, near the front, as I've installed 2 HD's (lots of heat) and there's no case fan at the front of the case, and nowhere to fit one. The only air inlet is at the rear (passive), and so is the air outlet from the psu. On my M/B there's a spare 3-pin Molex connector, and the fan I intend to use has 4 wires coming from it. There's a red and black terminating in a 2-pin Molex connector and there's a white and black terminating in a 3-pin Molex connector. Could the white wire be a data wire, indicating fan speed? Or are all 4 wires just +V and earth?
Thanks,
Mike
 
Ad

Advertisements

Abarbarian

Acruncher
Joined
Sep 30, 2005
Messages
10,933
Reaction score
1,179
I'm going to fix a fan from a failed psu into the side of my PC case, near the front, as I've installed 2 HD's (lots of heat) and there's no case fan at the front of the case, and nowhere to fit one. The only air inlet is at the rear (passive), and so is the air outlet from the psu. On my M/B there's a spare 3-pin Molex connector, and the fan I intend to use has 4 wires coming from it. There's a red and black terminating in a 2-pin Molex connector and there's a white and black terminating in a 3-pin Molex connector. Could the white wire be a data wire, indicating fan speed? Or are all 4 wires just +V and earth?
Thanks,
Mike

http://www.overclock.net/other-hardware-mods/203950-faq-power-pinouts-wiring.html

This might help you out. :cool:
 
Ad

Advertisements


Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top