Dell 5 pin CPU fan to 3 pin adaptation

[Bryan5050]

Bought (by mistake) a dell optiplex 790 motherboard from somewhere in the world. Everything is fine and i have a CPU that fits, however i noticed as i was installing it into my case, my case came with 3 pin fans. However looking at the motherboard (grrr.. Dell) i see that it's a five pin connection and my fans can't really fit inside it with the surrounding plastic.

So here's my question. Is there a simple way (tutorial, video, adapter cable somewhere in the great www) i can connect a three pin fan cable to it? I've heard there's simple workarounds but haven't seen an actual tutorial on how.

Any help, links, ebay posts are much appreciated.

I just don't want to send the motherboard back, or deal with selling it trying to find a cheap motherboard that has the connectors.

 

[popatim]

IIRC, the Dell 5 pin is wired backwards but you can get a normal fan to work.

See if this helps you, I can't get to the site from work but it sounds like its what you need.
pinoutsguide.com/Motherboard/dell_5pin_4pin_pinout.shtml

 

[Bryan5050]

IIRC, the Dell 5 pin is wired backwards but you can get a normal fan to work.

See if this helps you, I can't get to the site from work but it sounds like its what you need.
pinoutsguide.com/Motherboard/dell_5pin_4pin_pinout.shtml

That's the best i've seen so far, thanks! I'll do what i can, if not i can always sell the mobo to someone else to get my money back and more.