Originally Posted by Hawk777th;15327670
About 90W but itself. Mine is at that voltage and thats what it draws.
My Kill A Watt reads 152W while my system is idling.
However, due to my setup, I have everything plugged into it through a surge suppressor:
- Cable modem
- Cordless phone (not the main one, but one of the 3 slaves)
When everything is turned off, it reads about 22W. Now, while everything is off, all that's left is an idling printer (standby mode), cordless phone, cable modem and router. My speakers pull about 1-2W while idling, but I still turn them off when I turn my system off just because I can.
When my sig rig is idling but my monitor is turned off, my Kill A Watt reads 122W. That means my monitor pulls about 30W.
So when I subtract the 22W of power being pulled by the idling printer (stand-by mode), phone, cable modem and router combined, I get 132W. When I subtract my monitor (30W), I get 102W.
So, if I were able to have only my sig rig plugged into my Kill A Watt (not possible right now), then it would be reading about 102W at this very moment. If my PSU is being about 85% efficient, then that would mean my system is pulling about 85W while it's idling.
So what about my load? I've never been able to get a reading higher than 495W from my Kill A Watt. However, this is still including everything
, so I still have to subtract the monitor, printer, phone, cable modem, speakers (1-2W while idling) and router. That means I have to subtract about 52W. So if I could connect only my sig rig to my Kill A Watt, then I would never be able to get a reading higher than 445W. However, I still have to factor in about 85% efficiency which brings me to a maximum power draw of about 380W being pulled from my PSU under full load (well, at least while running Furmark a few different times to find the settings that pull the most power).
Now, Guru3D.com usually recommends adding about 100W-150W to a power draw reading in their reviews because like me, they're only testing the draw with the video card(s) under full load. So that would come out to be about 480W to 530W for me (that is, of power being pulled from my PSU). Although, I would only be able to add this 100W to 150W if I were to have my CPU under maximum load at the same time as my GTX 580 which rarely happens
. Edited by TwoCables - 10/16/11 at 2:16am