Hi, iv'e been seeing a lot of posts about PSU minimum requirements and all of that. But mine is extremely small so i can't get any good answers. I have 250 watts. My parents computer is 300 and I have tried switching the units but it won't detach for some reason. Anyways. The graphics card I recently purchased is a GeForce GTX 660 Superclocked. With a 140 watt power draw. My processor is an AMD Athlon II X4 635 and i have 4 gigs of RAM. Now i was wondering since the minimum requirements for the GPU is 450 watts. Now I am going to buy a new PSU for sure, obviously. But right now I have to wait for about a week to get paid. In the meantime i am very impatient and if i decided to use my GPU on this 250 watt piece of crap, would my other crap turn to crap? Translation: If i used a 250 watt on my computer with this GPU active will i experience problems, and also what if i put on the 300 watt PSU, would that be any better?