ASROCK H110 PRO BTC + motherboard startup

[mini miner]

hie,

i have ASROCK H110 PRO BTC + motherboard (13gpu).i am mining ETC. i have 4 CORSAIR VS 450 WATT SMPS .I HAVE 7GPUS (RX570).

EACH SMPS====2X570 (3 SMPS===6CARDS)

1 SMPS===MOTHERBOARD + 1X570

HERE,
         
           MY PROBLEM IS WHEN ONE SMPS STOPS WORKING ENTIRE RIG STOPS (ALL CARDS ARE STOPPING). MY FRIEND HAVING THE SAME MOTHER BOARD DOEST HAVE
 

 THIS PROBLEM.IF ONE SMPS STOPS 2 CARDS ARE STOPPING  AND ALL REMAING CARDS ARE IN MINING.I HAVE CHANGED MANY SETTINGS IN BIOS BUT THE PROBLEM

DIDNT SOLVED.PLEASE LET ME KNOW IS THERE ANY WAY.

THANKYOU .