Wall socket was pulling 1010W just the power supply. Figure 83% efficiency, that means it was providing about 840W of power to the computer. This power supply from PC Power and Cooling is supposed to be able to burst up past 800W for short periods from what I have read. Trust me it made a whining noise I did not like at all but it survived about 5 benchmark runs. I'm going to replace it soon though and got a dedicated APC 1500VA UPS as well just for the computer. Anybody have any comments on my SMbus issue?