| posts: 434 | Location: Tokyo, Japan
Don't know how accurate it is, but this might give you some reference. I would always add another 10% of margin on top of whatever they tell you just to give you some head room and security for future upgrades. Asus PSU Wattage Calculator
This is confusing me... That site says I need like 500/550W of power and I didn't even selected all the peripherals I'm using. All this with the GeForce 9800 selected, but if I remove it, it drops to 300W.