Hardware Canucks

Hardware Canucks (http://www.hardwarecanucks.com/forum/)
-   Power Supplies (http://www.hardwarecanucks.com/forum/power-supplies/)
-   -   Downvolting (http://www.hardwarecanucks.com/forum/power-supplies/35333-downvolting.html)

Arinoth August 18, 2010 09:20 AM

Downvolting
 
I have some fans that run too fast and i want to down volt them. Now i have a few options

http://www.ncix.com/products/?sku=51...actal%20Design

http://www.ncix.com/products/?sku=30...ture=Bitspower

Or 'jimmy rigging' my own, the one thing with this one is i am not sure which kind of potentiometer to use as i dont know the wattage these fans can pull http://www.ncix.com/products/?sku=42...tech.com%20Ltd

What do you all think, im looking for the least expensive and safest.

jcmaz August 18, 2010 09:39 AM

http://www.ncix.com/products/?sku=35...olutions%20Ltd.

You can get the above item for manually adjusting the fan speeds. Also, these things come with the GELID Wing series fans.

Arinoth August 18, 2010 09:41 AM

The fan in question does not have a 3-pin, it has molex connectors

jcmaz August 18, 2010 09:43 AM

Couldn't you get an adapter or something?

Arinoth August 18, 2010 09:49 AM

If i do that then it kinda leads into the cost of one of the two items i've listed. I'm contemplating the third option using a pot aka voltage divider but i don't know what fans are rated to run at wattage wise as i don't want to blow a resistor/pot by running it at a wattage its not designed for.

Zero82z August 18, 2010 09:56 AM

Fans typically have a current rating listed on the label covering the hub.

_dangtx_ August 18, 2010 10:08 AM

i would actually rig them to a controller. a bit more expensive, but adjusting the speed would blow whatever savings the other solutions offer :)

Arinoth August 18, 2010 10:14 AM

You obviously don't know what a potentiometer is. This is it:
https://www.egr.msu.edu/eceshop/Part...entiometer.jpg

It is exactly what are in fan controllers except you dont have the knob on them, they aren't pre-wired or in a fancy package.

Zero82z August 18, 2010 10:47 AM

Quote:

Originally Posted by Arinoth (Post 417385)
It is exactly what are in fan controllers except you dont have the knob on them, they aren't pre-wired or in a fancy package.

Most fan controllers now use PWM circuits instead.

Magnetic August 18, 2010 10:59 AM

Well from the grainy picture from startech's website I could make out 0.04 A.


All times are GMT -7. The time now is 08:22 PM.