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Convert 4 wire fan to regular molex?

post #1 of 8
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I've got two of these fans. They are 150CFM 120mm x 38mm Foxconn fans that came out of a Dell Precision workstation. They have four wires (red, black, yellow, blue) and I'd like to put regular molex connectors on them. Which wire isn't needed? Also, should I straight wire them to a molex or just the little 3 pin receptacle that I could put a molex adapter on?
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post #2 of 8
Take the 2 power wires and solder a molex to fan adapter to the 2 power wires, then hook up the PWM wire to the PWM output on your motherboard. Itll still run, plus be PWM controlled.
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by pyro_dude View Post
Take the 2 power wires and solder a molex to fan adapter to the 2 power wires, then hook up the PWM wire to the PWM output on your motherboard. Itll still run, plus be PWM controlled.
These won't be used for PWM, just regular case fan duties. Maybe even put on a single radiator.
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post #4 of 8
Probably best to go direct to molex.

BLK -> BLK
RED -> RED
YEL -> RPM (separate wire for monitor)
BLUE -> N/C

Frozencpu does a nice job with their wiring.
Edited by gymenii - 9/8/11 at 6:14pm
post #5 of 8
Your radiator fans can be controlled by PWM and get their power from Molex. Use this. (explanation)
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by gymenii View Post
Probably best to go direct to molex.

BLK -> BLK
RED -> RED
YEL -> RPM (separate wire for monitor)
BLUE -> N/C

Frozencpu does a nice job with their wiring.
I was hoping the little metal prongs were the same as the ones for 3 pin molex, but they aren't. Then I could have just used the ends on some old fans of mine. Found that out when I took the wires out of the plug. Do you know of a decent molex kits for sale anywhere? I guess I'd need a crimper as well.
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post #7 of 8
Frozencpu has all the pins/connectors. Or, if you have some old molex adaptors (I have a 5lb. bag-o-crap that I just pull from and make whatever I need) you could just make them.
Edited by gymenii - 2/2/11 at 12:43pm
post #8 of 8
Thread Starter 
Quote:
Originally Posted by gymenii View Post
Frozencpu has all the pins/connectors. Or, if you have some old molex adaptors (I have a 5lb. bag-o-crap that I just pull from and make whatever I need) you could just make them.
Ya, I might just play around with what I have to just get the fans up and running and see how loud they are.
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