Fans / wires

[krayzie]

I purchased a cyclone fan. The only thing is that it's not going into my pc, its going into my car. It has a disk drive power connector ( +12V yellow, gnd black, gnd black, +5V red). I understand the +12 and the grounds but I don't understand what the 5V red wire is for, do I need to hook up the +5. If so do I need to go to radio shack and get a resistor to step down the +12v to +5v, or can I just run 10V-12V to it?

Thanks in advance

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On the following boards as KRAYZIE:

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[This message has been edited by krayzie (edited 06-20-2001).]

[CWelker73]

what are you using the fan in your car for? just curious. i dont see why you would need to as long as the 12v is hooked up ok. im not sure though.


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Allright brain, I dont like you and you dont like me, so lets get this over with and get back to killing you with beer. -Homer Simpson

[krayzie]

I have an amplifier in my trunk and since it gets kinda warm, I wanted to http://www.PCGuide.com/ubb/eek.gif blow air over it to dissipate some heat.


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On the following boards as KRAYZIE:

m-emag.com (Mobile Entertainment)
forum.sounddomain.com
pcguide.com


[This message has been edited by krayzie (edited 06-20-2001).]

[CWelker73]

ahh, good idea

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Allright brain, I dont like you and you dont like me, so lets get this over with and get back to killing you with beer. -Homer Simpson

[Reid]

The fans I have seen with a drive connector power tap only have two wires (+12V and return) actually connected to the fan motor. The tap is wired to feed the 5V through to a drive's logic circuits, so you can just leave the 5V pin disconnected.

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reido@my-deja.com

Friends don't let friends install Windows ME

[krayzie]

I was going to see if it worked with just the 12V and the negative hooked up. Hopefully that'll work.

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MS-DOS, the only Microsoft OS that doesn't crash, or have bugs. Maybe they should have someone else write Operating Systems for them, again.

[This message has been edited by krayzie (edited 06-21-2001).]

[needcoolingadvice]

Hi there, I also have a question about connecting fans. I am a beginner, so I'm sorry if it sounds dumb. I've read the entire section on power connections from this site (pcguide.com) thanks, it has been useful, but I still have questions.

In any case, I have two untailed fans - one 80mm and one 120mm. Each of them has two wires, one black, one red. Can I simply attach the wires (doing the regular cutting and taping together with electrical tape) to a male molex connector (the molex connector would be taken from a Y jack).

With that molex connector, I would assumedly connect the fan's red to molex red, fan black to molex black, and the leave the other two wires hanging.

Then I would plug the male connector into the regular power supply connectors floating around in my case.

Am I correct in this? Does it matter what the fan amps are (both are 12V, one is .13A and the other is .6A).. how does the power supply know only to deliver .13Amps of power?

TIA

[This message has been edited by needcoolingadvice (edited 02-12-2002).]

[This message has been edited by needcoolingadvice (edited 02-12-2002).]

[bassman]

Hello Tia and welcome,
First, since you are new, I will not yell http://www.PCGuide.com/ubb/wink.gif . When you post a question, please feel free to start your own topic. Along with that, please do not start a new topic every time you respond to an existing topic of your own (not saying you have).

As for your fan question, these leads should have a connector on them that is made for a main board connection. The main board connection would set the amperage thru a regulator. These connections could be determined by looking thru your manual for the mainboard.
If your board does not have these connections, then rule of thumb would dictate that you don't need this extra cooling.
If the fans do not have a connector on them, only bare wires, and you are still determined to use these fans, then please do the following.
*Yellow on a mulex is +12V (not red)
*Please use solder.
*Please use shrink tube.
I do not recommend doing this! The main reason is due to the amperage difference. I am simply giving a little electrical advice.
What I will recommend is, if you need extra cooling, buy fans with the proper connections and ratings for your board.
Good luck http://www.PCGuide.com/ubb/cool.gif

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[rond36]

Tia One thing to add don't put a 2 pin plug on that 120 mm and plug it in to the mother board it will draw too many amps through the fan header and burn it out http://www.PCGuide.com/ubb/mad.gif A 120 mm fan should only be plugged into a mulex connector from the PSU.
If you realy need cooling advice visit this link (http://www.virtual-hideout.net/) Be sure to check out the cool case gallery. Careful it is adictive.
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[This message has been edited by rond36 (edited 02-13-2002).]