LordFluffeh :
RobCrezz :
The capacity of the PSU doesnt matter, its how much load is being put on them (i.e the components in the computers)
I am currently using 2 psus to power my pc (1 for graphics card and 1 for motherboard) i want to know if it will use double the power because (if) they are both taking 12volts from the plug.
No, the consumption will be fairly similar. Might be slightly higher with the two PSUs, but hardly measurable.