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Fan 24V overvolt! - Page 2

post #11 of 59
How can a PSU make negative voltage? And why is the amps on the negative voltage rails so low?
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post #12 of 59
I really dont know... But i tried it, and it worked.... 2x the speed at 24v's
    
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post #13 of 59
lol, i wanna do that with my 25 cm side fan.

someone should try that with a delta 220cfm.
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post #14 of 59
Thread Starter 
Quote:
Originally Posted by Fishie36 View Post
How can a PSU make negative voltage? And why is the amps on the negative voltage rails so low?
Easily. If we consider voltage being a vector, with magnitude and direction, then when the PSU produces a voltage with a negative terminal in the opposite direction to the +12V rail, we have -12V.
    
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post #15 of 59
Awesome. I'll try this with some old fans.
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post #16 of 59
just don't try it on your cpu fan especially if it's an amd
    
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post #17 of 59
i so want to try this with my FM121. that would be a BEAST.
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post #18 of 59
If you want your stock AMD fan to spin around 6k rpm and push a TON more air, simply crush the green thermistor underneath the motor. That will short out the temp sensor and make the fan run full speed.
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post #19 of 59
Quote:
Originally Posted by cgrado View Post
lol, i wanna do that with my 25 cm side fan.

someone should try that with a delta 220cfm.
that would be awesome
    
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post #20 of 59
I've been looking for a cheap way to over volt a water pump....I might try this with a large rheostat so I could vary the voltage...Thanks....
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