@Chew - you are a bad man . I had put a Ryzen build off for a couple of months but have found pricing for the B350 to be practically irresistible @ roughly €100, €375 for a Rz1700 and some memory and I can start playing at under €600 + I have a couple of Sabertooth (R2 and R3) and a couple of FX's to that €600 to bring it down even further.

Interesting to note that Asus have a message on the spec page for the board reading like this

"1*Due to the limitation of AMD Ryzen™ processors, memory frequencies higher than DDR4 2666 MHz are supported only when using one DIMM."

Looks like you have blown that away with the TridentZ you are using.