I had a similar issue with a set of 2x Corsair Vengeance Pro RGB 3200 CL16 16GB on the Aorus Master (on the QVL).
Had Memtest errors when enabling XMP. Setting the voltage, frequency and timings (16-18-18-36) manually like the XMP specs and leaving the rest on auto solved it.
Long time no update… I forgot about this thread. sigh
At any rate, They did a ram swap and that fixed the issues there. But turns out, theres a crappy bug between the Aorus motherboard and nvidia gpu that used to cause serious gpu lockups, but did get a bit better and just slows things down now most of the time, but occasionally still locks up the gpu. I still don’t think nvidia has a fix for it yet. So annoying.