But I think that the 450w psu is enough because I went to coolermasters psu calculator and put there i5 4460 & r9 270 it said Your Recommended Minimum Power Supply is 388w so?
My budget is bit of problem because I'm out of amazon and ncix deliver range in Finland and I have to buy the components from finish site www.jimms.fi and prices are very high. And also I don't need to buy OS because I have copy of windows 8.1 64bit.