PC Fan Wiring Help

I need help on how 2 hookup PC fans 4 my growbox, need some pics & instructions on how 2 wirer & power source 2 use, need info from some1 ASAP!

Here is the optimal way to power the fans, it's called a parallel circuit and all the fans would be able to run at maximum speed. The top one is more for an example because it's not much practical. The second one is pretty easy though. If you have any more questions just ask and I'll try to help

U need to use a 12volt ac/dc adapter .... it will say on it what the output voltage is.... then cut the endplug off the adapter output wire and hook the wires up to the the fan wires..... if u hook the wires up 1 way the fan will go 1 way and the other way to change direction of the fan.....cheers

i just used for mine a normal 12v DC power supply, phone chargers usually work if you have a spare one of those lying around just snip the end off and connect the wires. the green wire i believe does not need to be connected as this controls the speed of the fan inside the computer.

Wire them like the top pic. It's not hard, that's just a logical diagram. In actuality, you can attach all of the leads on each "side" at one point.

In the crap diagram below, the * is a wire nut with the splices inside it.

wall............|---------[FAN]-----|
[ + ]- ---- -* \.........................|
wart...........|..\........................|
.................|....\......................|
.............[FAN]...\.....................|
.................|.....[FAN]...............|
.................|..........\.................|
.................|...........\................|
.................|............|_______.../.....wall
.................\________________\*----[ - ]
.....................................................wart

With PC fans, it's often easier to wire the wall wart to the three pin adapter or to the MOLEX connector (if you want to attach multiple fans, as it's easy to daisy chain molex and then attach three pin leads as needed.)

BeachBum420 said:

U need to use a 12volt ac/dc adapter .... it will say on it what the output voltage is.... then cut the endplug off the adapter output wire and hook the wires up to the the fan wires..... if u hook the wires up 1 way the fan will go 1 way and the other way to change direction of the fan.....cheers

Click to expand...

thats what I did, I hooked up two fans that way, and the house or fans didn't catch fire I double checked the amp max on the adapter which was 1 amp and both fans were at .2millamps so I was good

macab24 said:

i just used for mine a normal 12v DC power supply, phone chargers usually work if you have a spare one of those lying around just snip the end off and connect the wires. the green wire i believe does not need to be connected as this controls the speed of the fan inside the computer.

Click to expand...

i just used my old phone charger and it works perfect.