Locks like only units were able to launch 4+ card in one rig and this rigs are working and not failed. Very strange that too much description about 150W per card, but all use 2x1200WATT psu for 4x cards.
Or I'm wrong ?
I'm running 2 x 1200 Watt for 8 cards. Not 4.
I have underclock the cards but they were not stable in any case. The only variable I changed to make them stable was giving a lot of headroom for the Vega to spike in terms of PSU