I've 4x rx580 x gaming 8gb and im mining eth + dcr. After 1 days my computer crashes and Im getting error message Application EthDcrMiner64. has been blocked from accessing Graphics hardware. Display driver amdkmdap stopped responding and has successfully recovered.
and the computer crashes.. I've tried trd regedit fix but not working.. the drivers are up to date
tt -30 -cclock 1120 -mclock 2100 -cvddc 920 -mvddc 875 -dcri 30
Im using EVGA GQ 1000Watt 80 PLUS Gold
Have you give it a go with the default settings??
Have you also tried to run the mining as ADMIN?? BTW your account have complete privileges on that machine??
Your PSU seems good, think its enough! Does the crash happens at certain time or it happens randomly??
Which version of Claymore you are trying to mine with?