Regarding to this post :

"
Have this rig:


    Asrock H110 PRO BTC
    120gb SSD
    8GB Ram
    CPU G4400
    8x Vega 64
    2 hp 1200 server supply
    1 EVGA 750 watts GQ
    Windows 10

    I have it 2 years now, and since beginning i got this strange problem.
    When i power on the rig, sometimes some gpus dont spin and i have to do another power off and power on immediately from each other to all gpus start spinning.
    Taking this off i got no problem Smiley

    The hp supply is turning on by an molex fdd floppy adapater cable coming from evga.
    I tried change risers etc.. but got same problem.. really anoying.
    can i get your experienced sugestion here? 
"

I will try to remove my molex fdd floppy adapater cable coming from my primary evga supply that should sync the supply.
Maybe without fdd floppy cable to power on the supply´s and if HP server supply's be always on connected i avoid this problem