Hi, Now my water cooled rig is up running and stable, I thought I would offer some info I have recorded thats kind of interesting. During benching and gaming, I have been creating a spreadsheet of everything I do and that includes power draw at the mains outlet. I was very surprised to find that most games dont stress the PSU anything like benchmarking. I thought the figures would be much closer. The Test Rig: (For power consumption reference) ASUS Maximus IV Extreme-Z i7 2600K @ Std settings 3x AMD 7970HD in Tri-Fire @ std settings 2x 240GB OCZ SSD's 3x 1TB Velociraptors Corsair Vengeance 8GB DDR3 @ 1866 XFX 1250W PSU 1260 & 360 Radiators fed with D5 pump A few lovely lights... lol Results as follows: (All settings maxed for each game, using eyefinity at 5760x1200) Benchmarking: 3D Mark 11 (Performance) – 880w Heaven 2.5 – 898w 3D Mark Vantage (Performance) – 906w Furmark on 3 screens – 908w Aida 64 stability test - 1092w Gaming: Mass Effect 3 - 565w Shift 2 unleashed – 570w Syndicate – 580w Skyrim – 620w Hawx 2 – 641w Alan wake – 720w Crysis 2 – 780w There is little point to this topic, other than to show that during gaming, your PSU may not be quite as stressed as you think. Its during benchmarking that you need the extra watts for synthetic loads. Please Note: These figures were taken with everything at standard clocks so its a valid benchmark. Overclocking will increase the current required.