thank you for taking the time to answer this question :
Here are the fans in question… I only ask because I burnt both fans trying to find the right wires, so I guess I put the wrong wires on for too long?
**And this fan as well, if you can: 
Is there anything I do with my multi-meter to see which wires are the Red/Black or Pos/Neg so I can correctly position my connections, or is there an electronic handyman's way to do it without burning the fans, is it just you try all combinations but quickly so that I don't burn the motor? There are 16 combinations and that is 16 chances to burn the motor.
OR
I will look for a guide on these models?
Best Answer
A quick search does not bring up this particular series on the Delta website. That said, this is a 4-wire DC brushless fan and there are some good resources available on understanding how these are wired up and controlled.
The typical wiring pattern for these fans is GND/12V/SENSE/CONTROL. Finding the ground wire should be easy enough with your multimeter.
Take a look at these websites if you want to learn more. Perhaps someone with direct experience on these fans can chime in.
http://pcbheaven.com/wikipages/How_PC_Fans_Work/ http://www.hardwaresecrets.com/anatomy-of-computer-fans/2/