Ok, so this has not been as easy for me as I expected. I need to set my eggs ASAP, and if I am not able to get this fan in tonight, they're going in without one.
I grabbed a computer fan from work, problem is it's got three wires, black, red and yellow. I can't find any diagrams that show me what to do with this set-up, or if it's even workable. The fan is a FoxConn DC Brushless Model PV902512L, 12V.
My power supply is an old battery charger, has two wires.
It is 7.5V, so I'm not expecting it to spin the fan very fast, but from what I have seen, it should be enough. (If I can figure out how to put the wires together.)
Any ideas?

I grabbed a computer fan from work, problem is it's got three wires, black, red and yellow. I can't find any diagrams that show me what to do with this set-up, or if it's even workable. The fan is a FoxConn DC Brushless Model PV902512L, 12V.
My power supply is an old battery charger, has two wires.

Any ideas?