How to use computer fans?

Ok me and a friend are going to try and set up a lowryder stealth grow in a pc case we have every thing worked out execpt the ventilation. how do i wire up a computer fan to a socket? it has a red cord and a black cord what do i do... i have a general idea but some professional help would be much appreciated lol. Also in the thread i got the idea from the guy says he had a carbonfilter hooke up to the fan any ideas how to do this? thanks for the help and here is a link to the thread (it is very interesting!) http://www.highbred.net/forums/index...c%20case&st=60

a computer fan takes verry little power to run if you give it to much it will burn up the motor i would get one of those adjustable output power cords
that they make for hand held cd players and stuff like that at wal-mart in the electronics section there about $8.00 and go 3 to 12 volts then just cut and splice start with it on the lowest setting and move it up until the fan starts working dont over do it though the fan might even say how many volts it takes right on it

good luck

To maximize your safety, I strongly urge you to take the computer fans you will be using, go to a Radio Shack and tell them you need to set up the fans to run from a wall socket. They'll match a power adapter to the correct wattage/amperage rating for each fan.

Otherwise, if you just grab a random power adapter from another electrical appliance, you run the risk of overloading the power adaptor.

or, keep it simple with these: http://www.coolerguys.com/840556026389.html :smokin:

ello this could come in handy for ya to get ya fan working without it having to be hooked up to the computer what im about to tell ya works brilliant for me i have 3 fans hooked up together on a dc adapter

on the fans there is 3 wires red,black,yellow the red and black wires are ya elctical wires and the yellow is a fan speed controller wire that monitors rpm
right snip off the yellow wire as it is not needed and take the red and black wires peel off the insulation slightly and wire them to a 12volt dc adapter you can buy these from any hardware stall
snip off the end of ya adapter and there are 2 wires you will notice they are both black but one of them will be marked with lil white lines this is the wire ya will be attaching the red wire too twist them together insulate with electrical tape and do the same on the other black wire
then you are good to go
plug it in dude and thats it
cheers hope this helps :)

They run perfectly on 9 volts. You either need to wire in a 9 volt mains adapter or use batteries.

I also used to use PC fans, but i gave up with them.

To run PC fans i always just use a computer powersupply... easiest/safest option.

If you use the adapter to run the fan you don't need to snip off the yellow fan wire or the adapter head you can make intersections in the adapter wire leaving the head intact. If you snip the red and black wires on the pc fan and wrap them round the intersection you made on the adapter wire you can use both and be able to use them again.

9 volt adapters work.

well there seems to be a few ideas here sand man let us know
what ya end up doing
cheers all :)

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Originally Posted by Bluefunk

To run PC fans i always just use a computer powersupply... easiest/safest option.

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can you use the powersupply to power the fans with out hooking it up to a mother board and the other parts? If so that is what i will be doing because the case came with a power supply.

Quote:

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Originally Posted by Bluefunk

To run PC fans i always just use a computer powersupply... easiest/safest option.

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can you use the powersupply to power the fans with out hooking it up to a mother board and the other parts? if you can thats what i will be doing because the case has a power supply.

Quote:

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Originally Posted by busteruk7

well there seems to be a few ideas here sand man let us know
what ya end up doing
cheers all :)

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sorry for the double post im a lil high lol but ya anyways....

Well first off i was going to just go buy the ones off the website coolerguys but i dont want to pay 20 bucks a piece so i think me and my friend are just going to wire an adapter to it. Also we might take it to radio shack to be safe like a couple of people said lol *we dont want/need dead stoners* :D idk i will keep you guys updated how it works out :o ! hell i might even do a grow log because i think this will be interesting :smokin:

Hooking it up in the motherboard?? What the hell, does that computer still have power going to it?? I hope not, and if so whY?

doesn't make much sense to run a 250-400 watt computer power supply to run a 10 watt computer fan ... $$$ ... :smokin:

I have 10 pc fans running in my indoor. All of them wired with 3 AC-DC 12V transformers (each one cost me 3â?¬). Each transformer has polarity selection button and voltage output regulable (from 3 to 12V). Wiring in very simple.

I have 4 8cm fans conected to a transformer (it gives 1,2A, and each fan uses 0,2A). Works with lights, to cool them.

Another 3 to other 1,2A transformer (one 12cm fan running at 0,4A and two 8cm running at 0,19A). They work 24/7.

And other 3 running with lighs on, 2 12cm and 1 8cm. This transformer become very hot, because the load is similar to the output. I would prefer to use a 1,5A transformer, but i was unable to find it cheap.

DC fans RPM (=noise and air flow) are easily dimmable, selecting the output V. Aditionally, i have a regulable bay for computers wich can regulate the speed of 4 fans (i have it near the thermohygrometer, so i adjust fans speed according to temp and humidity, specially the one i use as humidifier). I bought the 2 packs of 4 thermaltake fans (2 12cm and 2 8cm) with the regulating bay for 20â?¬ in a local computer store.

Quote:

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Originally Posted by SeedlessOne

Hooking it up in the motherboard?? What the hell, does that computer still have power going to it?? I hope not, and if so whY?

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it wasnt a computer its just a case that came with a powersupply. once again i was high :D and wrote some stupid shit. my question i guess is how do you connect a powersupply to the fan and get it to work with out hooking up the other computer parts.

If its a ATX power supply, it dont work without motherboard. You must make a bridge to do it work. It inst difficult, but no i dont remember exactly how to do it.

In the other hand, use a 250w (or 400w) power supply to run fans with low power is a waste, and with so little load, the supply voltage can be quite inestable. It would be a great idea to use it to power all the setup (using 12V CFL and leds, and the fans).

Quote:

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Originally Posted by knna

If its a ATX power supply, it dont work without motherboard. You must make a bridge to do it work. It inst difficult, but no i dont remember exactly how to do it.

In the other hand, use a 250w (or 400w) power supply to run fans with low power is a waste, and with so little load, the supply voltage can be quite inestable. It would be a great idea to use it to power all the setup (using 12V CFL and leds, and the fans).

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^^^thats what i was talking about when i said do you have to hook it up to the motherboard? thanks for the help man