I opened the case up a bit more and played around with the fans. Got the MB temperature to a constant 35º at stock speeds, no matter what load (1.2xxv as well under load). If I OC at all, it will be between 50-55º even when idle and with P95 largeFFT it will go to 80º very quickly and over 100 on longer runs (20min ) so I'm still torn whether I'll keep the OC or not. In games it's perfectly normal though. Playing Witcher 3 @3.8Ghz barely puts it north of 50º, even though the voltage is 1.352v constantly.
The other thing i tried for the lulz and it just worked, was 3466MHz on memory with same timings and voltage to what it's rated to (@3200MHz), so it seems I got very lucky with that!
It works and is stable overall, but I get the suspicion that the USB timings are off because of it.(In Witcher, when loading games, the mouse or keyboard sometimes act funny, etc) And MSI gaming tool reports DDR frequency -1 . Will look into it later, perhaps i need to loosen the timings a bit.