Pc fan power source.

I have a few small pc fans i was wondering what i could power them with i'd like to make something at home but if i had to buy something i guess i could.

theres only three wires attached to a plug red-yellow-black.
Anyone got any ideas?

sorry if this is in the wrong section.
i'm going to use it for a Pc grow(seedlings)

Comp fans typically run on 12V, so you'll need some sort of transformer or an AC adapter that has a 120V input and a 12V output. Cut whatever plus is on there off and splice the wires. Depending on how many amps you need (per fan) you may have to either hook the fans up in series rather than parallel, so as not to decrease fan performance. You can get high amp AC adapters off of old routers or cable modems (generally between .5 and 1 amp), or low amp ones off of cell phone chargers (generally 300 mA). Look at the amp requirements on your PC fans and make the call. Good luck.

Yeah, just hook it up to a old cell charger. Red to red, black to black and white to white

Dont connect the 3rd wire to ANYTHING, its just for speed sensing in the PC.

i found a few adapters these are they're Volts.
Input:120V
Output:13.5

and i have one that's 115.5 input but only 9V output.
EDIT: i found one that is input:120v and output 12v and i got it hooked up thanks a bunch.

go with the 9 volt output. just incase cause any higher could burn out the fan. unless ofcourse it says on the fan somwhere 12v.

hmm... maybe a computer power source? how hard was that one, honestly? lol

smillingassasin said:

go with the 9 volt output. just incase cause any higher could burn out the fan. unless ofcourse it says on the fan somwhere 12v.

Click to expand...

i'm useing the 9v it seems to be working good enough.
thanks bro.

computer fans are 12v

miggzeh said:

computer fans are 12v

Click to expand...

Yes i see it on the back of the fan, but i hooked the 13.5v to it and it kinda made it seem like it was going to explode and the 9v seems to be working.It's only going to be for a little bit.