Inactive GPUs at Rig Launch

[illanz]

Hi,

I use several rigs of 12 cards (RX580) on H110 + Ethos.

2x 1800w PSUS are linked with add2psu (molex) connector. Not the double 24 pin Y cable

randomly at boot, I have only 10 or 11 cards that launch (others have their fan stopped).

I have to push the motherboard reset button several times in order to have the 12 cards running (fan spin) . Then the rig runs fine... Any clue ??

Many thanks