Rig has passed an overnight loop of memtest86, here's current settings for CPU and RAM:
Had to up the vCore and VTT to current values last night, I left it running P95 Blend when I left for work this morning. Hopefully it won't have crashed when I get home, I am feeling like it's much closer to stable. Once it is confirmed stable, I'll get all the benches done and stick them up here. RAM speeds and latencies are looking much better than stock according to AIDA64's bench, and CB scores are around 960 (up to 1040 with 4.6 core but it's not stable at that), up from the 770s at stock. So good increases all round