My 6x Vega 56 rig on Onda D1800 finally works like a charm.
Averaging 1940 h/s per GPU so just over 11600 in total, for 1350W at the wall.
For the records, that's better than my two 7x RX570 rigs combined (11200 h/s for 1650W), without any single bios, SOC or soft power play mods.
Those bloody Vegas really are good.
I only wish CastXMR would allow you to set failovers...
Are the cards too closely? what's the temp and fan speed?
Yes, cards are definitely too close. I had to back down a little. HBM runs at 925MHz for 900mV. HBM Temp is between 70 and 80C. Can't push frequency higher or it'll crash. So 1900H/s per card, no throttling, no crashing. If I lower TDP by 10% core speed and hashpower is throttled immediately.