Question Converting a 6 pin Delta to a 4 pin?

crubleigh

Honorable
Jun 6, 2013
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I pulled some Delta PFC1212DE's out of a Dell server and would like to put them in my new build however the dell bs connection has 6 pins. I need to splice this into a 4 pin but I don't know what 4 pins. I found the data sheet for the 4 pin version of the same fan and it seems the yellow is PWM and Blue is F00 (tach maybe?) red and black are positive and negative, however there are 2 red and 2 black wires. I definitely need the PWM control on these since they sound like jet engines. If anyone has any ideas that would be very helpful. Here's some pictures: https://www.delta-fan.com/Download/Spec/PFC1212DE-F00.pdf
 

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