Hm... yeah,
It's probably a bit too late now but you could have done a bit better choosing your parts.
Why did you waste so much money on Win 7 Ultimate if you could have saved probably more than 40 Euro by getting the Home Premium instead. And you could have bought 8 Gb of RAM instead of 16 and with the money saved you could have easily bought an R9 280x instead of the 270x. It would have given you a better performance. Just saying.