I think this is about the best I can get with my 6400cl28 setup – tRCDRD 36 errors immediately on TM5 and 37 errors after an hour or so, this did 3 hours of the ryzen3d TM5 and 2 hours of ycruncher FFTv4/VT3, and 42k% on karhu in ~9 hours. I'm open to suggestions for improvement but at least this is a nice stable to use for now. VDDGs are at 930.
I suspect if I push it to 6600 it would take a lot more VDD/VVDQ and probably more vsoc, likely destabilizing fclk.
Curious if anyone has any timing suggestions/improvements. I suspect tRDRDSD/DD may be able to go a little tighter but I’m not sure how much benefit that may really give.