Hey i want a new pc and i was thinging to build one but i want something very good and now my budget is 500 euros.My idea is to upgrade my 2010 pc that i have now with an intel pentium and a gtx 1030 so i can save more money to build a good high end pc in future.But i dont know how many watts my psu have to upgrade the cpu and gpu.I think i cant upgrade it so i have to change the psu but I have never built / upgraded a computer anytime.Please help me...