Ok,i will change the motherboard( B150M ) to Asus.
For Asrock.................a lot of people compain too.
For DDR4 i dont;t have too big choices-the DDR 4 is still expansive,Corsair will give me this that i need.
Put one solid videocard(if i am honest i am not satisfy from current videocard and i will wait to the new generation-Pascal,which will be released 2016)..............and the system is very good and offer very good price/performance ratio.