I think dili sa motherboard largely mo-depend ang imong power consumption...the biggest factor there is your processor plus your 4 hard disks...
Intel Core i3-3220 is rated @ max TDP (Thermal Design Power) of 55W.
ARK | Intel® Core
Assuming your SATA HDD are using 12V @ 1 to 1.5 A (pretty safe approximation) then 12 times 1.5 equals 18W (upper margin already).
4 x 18W = 72W
therefore:
Processor = 55W
HDD = 72W
-------------------------
Total = 127W
Mao ni ako ma estimate bai...nga power consumption nimo.
Of course the motherboard also uses power as well as the RAM
and cooling fans but that is signicantly lower than the amount of
power that your processor uses.
Real Power is just Voltage multiplied by Current.
There is also the Reactive power which is the power
that was not used effectively, but just dissipated as
heat.