i know there are many tutorials for this but i cant figure out how to rewire a pc fan. my pc has 3 wires(red, black, and white) with the 12volt adapter only having two wires, both black, except one has marking or print on it. How do i wire these?!

the one with the markings is probably the positive, hook it to the red wire, the black to the black and leave the white wire off as itll just be for fan speed.
if it doesnt work like this then swap the 2 wires around.

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Live Chat. my veg box
whiteskunk 250w HPS/bagseed 12/12

No worries guy, you can't fuk it up and get zapped or anything. Just try a different wire if that doesn't work.It's idiot proof ( i know well)

I don't want to rain on your parade, lord knows I get set on building some weird shit myself, but a pc fan is too weak and more expensive than a cheap fan from walmart. Personally, I would abandon this project, however if you dont I wish you luck.

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"I smoke two joints before I smoke two joints then I smoke two more!"

I agree w/ Plasma however if you're strapped for cash by all means but ebay Muffin Fans there slightly larger and more powerful yet not expensive

I too was thinking about computer fans and i still think im going to go with that idea. I blew one of my fans out trying to wire it last night. I need a couple of them to cool down this stealthy grow box i have constrcted, and if these case fans work on a computer well, i beileve they shold work just well on this box of mine.

The thing about the PC fans is that their quiet as fuck...

I actually got a few of these today. they're rated 74 cfm. I wired them up and tested them and they were pretty powerful when used in combination.

I'm gonna run 2 in 3 out, and through a homemade carbon scrubber.

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First Grow: 2 CFL bagseed closet box
Second Grow: HH, WW, BBxAK, C99xNL

i can't seem to figure out how to wire them up? i was using smaller type of power cord, thats what blew the fan up. what has to be used to plug it into an outlet?

--yepppp you know it. I want to run 2 out and two in, flowing threw the box.

here's a quick tutorial. I just did it real quick since I was doing this last night anyways.

hope this helps out.

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First Grow: 2 CFL bagseed closet box
Second Grow: HH, WW, BBxAK, C99xNL