Poz doktore
I have one problem with miner. I am using latest version 1.6.7 with algo switching and 18.4.1 (didn't bother to try suggested drivers because this one I am using for long time and didn't have problems with older versions of the miner).

Problem is that I get hashing speed is 0 error and then my pc restart because I am using reboot windows scripts. Crashes are random, sometimes after 2-3 houres, sometimes after whole day of mining. I check error log and notice that every time when I have this error in log
DFP online load: FAIL
one of my cards start hasing 0 then after few seconds all start hashing 0 and then my pc reboot. This started to happen with few latest 1.6 versions of miner.
I have 3 rx570s and 2rx 580s cars all with 4gb. All clock and configuration are ok because I am using them for a long time.

BTW Guys can you tell me your settings for heavy algos because I am getting around 690 on 570s and around 740 on 580s card with 4gb memory with I:28 W:8 T:2 and don't know is that good or not. On v7 with same clock and I:58 W:8 T:2 I am getting 940 on 570s and 1025 on 580s.
570s are elpida with clocks       1220/900-2020-900
580s are samsung with clocks   1260/907-2050-895