reservoir_dog

@Jurrunio  I've hit 3733 c14-14-14.. that is kinda cool considering it's 4 double sided sticks... but failed to post with 1.45 on memory.. raised to 1.47.. too close to the thresholds, will need to step down a little for daily usage and run some stability suites. Still have no idea what causes boot fail on 3200, seems like some odd bug.

So I've managed to hit 12-12-12-28-42 at 3133 with relative ease, zero freezes zero glitches, some extra sub-timings from DRAM calculator lowered as well. Kept voltage at 1.45v to have some headroom and not to worry about it just now, SoC on auto and hits around 1.075. System stable under AIDA stress, had no time yet to try full stability suite of memtest86. Temps are just fine at around 42C. I may even try my luck and push the timings further. But frequency wont move above 3133. This definitely looks like some mobo/ mem controller or ram PCB layout issue. 
 
I mean it does look good so far, not sure whether switching these Royal kits for newer AMD optimised Neos would be beneficial. Royals are allegedly better binned to start with.
I may hit 3600 c16 or 3200 c14 right of the box with Neo (which I can't do with present kits), but would that be better than current 3133 c12? Overclocking 3600 to c14 or lower sounds cool.
 
I've read materials that say that generally higher frequency + higher timings is more favourable than lower frequency with tighter timings, for most applications. It's marginal, but it's a matter of interest.

Try set SOC voltage to 1.1V. you're in the realm of bottleneck of the memory controller of the CPU.