24volts

[jadams]

Is there any way to get 24volts out of a computer power supply?

I saw a fan I like that would look cool stuck in the bottom front of a case, but it runs at 24volts.

or, do you guys think that a fan that needs 24v would run OK on 12v?

Thank you,
Jeff.

 

[JudgeDredd]

Use the +12v and the -12v lines. Potential difference makes that 24v.

 

[jadams]

so just take the two and twist them together to make one wire? Then where would the ground go from the fan? To the 5vground?

Thanks!
Jeff.

 

[RCtruckguy]

i think he means just conect the fan to the PS as u normaly would. or you could take 2 PSU's and wire them in series go to the 3ed sticky to see how too~RCTG

 

[jadams]

Do you think 12v would be enough to run a 24v fan? Let me see if I can find a link to it....

http://www.allelectronics.com/cgi-bin/category.cgi?category=220100&item=CF-135&type=store

 

[RCtruckguy]

yea but it will be slow and should be quiet, and should get like 100 CFM~RCTG

 

[jadams]

Cool, thanks for all the info everyone!

Jeff.

 

[Carnil]

so just take the two and twist them together to make one wire? Then where would the ground go from the fan? To the 5vground?

Thanks!
Jeff.

No, you hook the red (+) wire from the fan to the +12 wire, the black (-) wire fan wire to the -12 wire, and hope the fan doesn't draw more than about 1 amp.

 

[JudgeDredd]

I shouldn't matter, wouldnt it be drawing the amps off the +12?

 

[stool]

I've run a few 24v fans at 12v with no problem. The only way to find out is to actually try it, though.

 

[jadams]

No, you hook the red (+) wire from the fan to the +12 wire, the black (-) wire fan wire to the -12 wire, and hope the fan doesn't draw more than about 1 amp.

That would just be normal 12v, wouldn't it?

Well I've ordered the fan. It's 1amp so shouldn't be a problem.

Thanks again!