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OfflineXTCollection
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Computer case fan - Rewire to outlet help...
    #3903607 - 03/11/05 05:00 PM (12 years, 5 months ago)

How can I rewire case fans for AFOAF storage cabinets? The cabinets are large and he needed a cooling system. Ive searched google, can get the right combo of words for anything useful. Thanks.


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InvisibleHolydiver
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Re: Computer case fan - Rewire to outlet help... [Re: XTCollection]
    #3903626 - 03/11/05 05:03 PM (12 years, 5 months ago)

Rewire them to...? What is your goal here?


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OfflineHotnuts
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Re: Computer case fan - Rewire to outlet help... [Re: Holydiver]
    #3903653 - 03/11/05 05:07 PM (12 years, 5 months ago)

Direct to 110V


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OfflineJacquesCousteau
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Re: Computer case fan - Rewire to outlet help... [Re: Hotnuts]
    #3903679 - 03/11/05 05:13 PM (12 years, 5 months ago)

Just buy a transformer of the appropriate voltage... I believe PC fans are usually 5 7 or 12... it's been a while though, so don't quote me on that. If you go to radio shack they have universal transformers with a little slider that lets you change the voltage.


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InvisiblelIllIIIllIlIIlIlIIllIllIIl
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Re: Computer case fan - Rewire to outlet help... [Re: Hotnuts]
    #3903684 - 03/11/05 05:13 PM (12 years, 5 months ago)

If you want the stealth method just hook them up to a battery with 10-16 volts. A cordless drill battery is perfect for this.

There are three wires coming out your fan. One is positive (red) the other is negative (white or black) and the third is just a ground (cyan, yellow, pink). You can ignore the ground. The red goes to the positive end of the drill battery, the black/white goes to the negative end.

This will last about 8 hours.

Now the non-stealth method is using a DC converter. That sounds complicated, but it ISN'T. Trust me. It's just a Black little box you plug in which connects to a digital device. For example your cell phone recharging cord is a DC converter.

Other DC converters are your Nintendo plug in cord, your portable phone handset plug in cord. Your speaker plug in cord. It's a heavey black box thing that plugs in.

To connect usually you put the positive on the outside and the negative in the inside.

Or you can buy a DC converter as has been suggested.


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OfflineDarkie
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Re: Computer case fan - Rewire to outlet help... [Re: lIllIIIllIlIIlIlIIllIllIIl]
    #3903694 - 03/11/05 05:16 PM (12 years, 5 months ago)

You'll need a 12v ac to dc powersupply. I took mine for an old fone or something. Actually mine is 9v but the fan runs slower than normal which is fine by me.


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OfflineHotnuts
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Re: Computer case fan - Rewire to outlet help... [Re: Darkie]
    #3903713 - 03/11/05 05:23 PM (12 years, 5 months ago)

It should say on the fan weather it's 12 or 110. If it's 110, take an extension cord and cut the end off and wire it to the fan wires. If it's 12, you'll have to get a power converter or use a battery.


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OfflineXTCollection
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Re: Computer case fan - Rewire to outlet help... [Re: Hotnuts]
    #3903743 - 03/11/05 05:28 PM (12 years, 5 months ago)

Way cool, thanks...


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InvisiblePrisoner#1
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Re: Computer case fan - Rewire to outlet help... [Re: XTCollection]
    #3903903 - 03/11/05 06:03 PM (12 years, 5 months ago)

2 wires you should be concerned with, black and red
there is no ground/neutral on DC fans, it's positive and negative and an occasional 'acc' wire.



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InvisiblelIllIIIllIlIIlIlIIllIllIIl
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Re: Computer case fan - Rewire to outlet help... [Re: Prisoner#1]
    #3904098 - 03/11/05 07:01 PM (12 years, 5 months ago)

What is acc? AC current? All mine have three wires.


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OfflineBloodNOil
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Re: Computer case fan - Rewire to outlet help... [Re: lIllIIIllIlIIlIlIIllIllIIl]
    #3904238 - 03/11/05 07:39 PM (12 years, 5 months ago)

acc is accessory, usually a tachometer to measure the speed of the fan.


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OfflineRogerRabbitM
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Re: Computer case fan - Rewire to outlet help... [Re: BloodNOil]
    #3904377 - 03/11/05 08:21 PM (12 years, 5 months ago)

If it came out of a computer like the pic prisoner1 posted, just find an old junk computer and get the power supply out of it.


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Download Let's Grow Mushrooms



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OfflineXTCollection
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Re: Computer case fan - Rewire to outlet help... [Re: RogerRabbit]
    #3904534 - 03/11/05 08:59 PM (12 years, 5 months ago)

I have an extra power supply, how would I do this without a motherboard?


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Offlinechocbruce
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Re: Computer case fan - Rewire to outlet help... [Re: XTCollection]
    #3904962 - 03/11/05 11:21 PM (12 years, 5 months ago)

mmm the easiest way is to get an older power supply and use it to run the fans. You can pick one up for free on anandtech forums in the trader section probably (just pay shipping) or you can buy new from newegg.com

OR! Get a 12V power supply from radioshack, I bet that would work...


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I look for answers and present ideas, but in no way shape or form endorse, or partake in, growing, or manufacture of substances, or plants, or any specie that is illegal in your neck of the woods. I do however, tear the tags off of my mattresses. Be warned.


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OfflineMages
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Re: Computer case fan - Rewire to outlet help... [Re: chocbruce]
    #3905127 - 03/12/05 12:10 AM (12 years, 5 months ago)

Get a DC converter, for sure. They're smaller than a power supply, for one thing. Also, I have no idea how to fire up a computer power supply without a motherboard, although I'm sure you can find out on a computer forum or newsgroup somewhere. HOWEVER, I do know that you can do it with a DC converter. I found an old one around the house somewhere, (I had several, but this one happened to have 500 milliamps written on it, and I knew I needed half an amp to run 2 .25 amp fans.) snipped off the cord on it & on the fans I was going to use, wired it, plugged it in, unplugged, it, rewired, etc. until in ran, then snipped off the extra wires because I knew they had nothing to do with power. Then I taped everything together, and it runs great.


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- Mages

Ignorance killed the cat; curiosity was framed.
- C.J. Cherryh


Edited by Mages (03/12/05 12:11 AM)


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InvisiblePrisoner#1
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Re: Computer case fan - Rewire to outlet help... [Re: lIllIIIllIlIIlIlIIllIllIIl]
    #3905986 - 03/12/05 08:38 AM (12 years, 5 months ago)

Quote:

adjust said:
What is acc? AC current? All mine have three wires.




it varries, sometimes it's a Tach for measuring fan speed, sometimes it's a secondary current draw of 5 volts to reduce fan speed, it could also be an LED light or a dozen other things...


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InvisiblelIllIIIllIlIIlIlIIllIllIIl
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Re: Computer case fan - Rewire to outlet help... [Re: Prisoner#1]
    #3907541 - 03/12/05 03:58 PM (12 years, 5 months ago)

I was shopping at value village today and I saw a lot of DC converters, all for 3 dollars.


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