12v cooling fans - Page 2

KrazyKuch · #1 07-06-2009, 10:09 PM

Quote:

Originally Posted by banditpowdercoat

Yup, can run 4 .25mA fans. If you want real power, get a old computer power supply. They can power a ton of fans. Plus, you have 12v and 5v and you can mix it to get 7v So, you can run a fan at 7v no problem, little slower, less flow but alot quieter

used to do that in my overclocked computers all the time.

In case anyone cares, to turn on a computer Pwr supply, connect the Green wire to ANY black one.
Yellow to Black 12Vdc
Red to Black 5Vdc
Yellow to red, 7Vdc

Ummmm...I have had a couple power supplies were you have had to take the green to ground to make them turn on!!!!

Doug · #2 08-06-2009, 01:00 AM

Now that its been running the duel fans, I notice the power supply is fairly warm to the touch. How much would be normal? Cant say as I ever noticed it before when running a single.
Thanks