I'm kind of worried that 1200W+ is running through the traces in the board. At the same time I wonder if it's possible to push 8x Vega VII at 250W each

Bought one of these similar boards as sample today, but has a cpu socket to use a G4560 instead of the soldered 3865U. It's slightly cheaper than the onda boards and most importantly $86 USD Bitmain APW7 can be used instead of 1500w titaniums.