@rednow, what are the default values with your mod? Can you share an overdriventool screenshot too 
?
My reg-file mod is based on vega54 liquid bios. ? Only changes are to set "greyed" low power state voltages to 900mV (905 or 910 if you are a silicon lottery loser) and increase SoC clock to 1200.
All other settings are done in OverdriveNtool as I wrote before.
I didn't touch gpu or mem clocks in power play at all.
thanks.
Do you happen to know whats the difference between these two bios versions? :
Sapphire RX Vega 64 8 GB 2017-07-19 16:44:00 016.001.001.000.008706 PCI-E 1630 / 945 HBM2 Download | Details
Sapphire RX Vega 64 8 GB 2017-07-28 15:57:00 016.001.001.000.008730 PCI-E 1630 / 945 HBM2 Download | Details
P.S. Wondering if I picked the proper bios when upgrading the two 56s ... after reducing mem to 1080 on all 3 56s, I still get ~10 GPU compute errors per hour
