Pro/Forums - View Single Post - How to calcualte how much power an undervolted fan will draw

MadHacker · 01-24-2005, 03:39 PM

So to recap this then,
If doubling the voltage quadrups the power output.
then it is safe to say dividing the voltage in half would drop the output power by a quarter?
since @ 24 volts the fan draws 26Watts
so @ 12Volts the fan would draw 6.5 Watts
and with 4 fans and only 3 fan headers on the MX212 that would mean i'd still would have to double up. putting it to 13Watts which is 1 Watt over the spec.
will it burn it up... do I want to spend $100 to find out...?
have to ponder about that...

01-24-2005, 03:39 PM	#11
MadHacker Cooling Savant Join Date: May 2003 Location: Okotoks, A.B. Canada Posts: 726	So to recap this then, If doubling the voltage quadrups the power output. then it is safe to say dividing the voltage in half would drop the output power by a quarter? since @ 24 volts the fan draws 26Watts so @ 12Volts the fan would draw 6.5 Watts and with 4 fans and only 3 fan headers on the MX212 that would mean i'd still would have to double up. putting it to 13Watts which is 1 Watt over the spec. will it burn it up... do I want to spend $100 to find out...? have to ponder about that... __________________ "Great spirits have always encountered violent opposition from mediocre minds" - (Einstein)