I am newbie here,same problem when using 6x 8gb RX570 ,running with Win10 64bit,120ssd ,8Gb memorry got problem gpu Dag problem.i have tested with my old hdd same setup with 500 gb sata hdd than no problem.all work fine with has rate.
May i get some advise from guys what is the best setting with the vitual memorry so i can use back my 120gb ssd
16 to 20gb virtual mem is more than enough
it should not throw a dag issue as the cards that you are using are more than capable to mine with 8gb ram