Hello ,can Any Help
I switched Clay to Phoenixminer 5.3, I have Saphire and XFX rx580 8gb, adrenaline 19.4.3 driver, Win 10 ,  on Clay everything worked normally for me, now 3xGraphic will not switch 28.8 Here is the command line in file.bat
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_SINGLE_ALLOC_PERCENT 100
timeout 15
PhoenixMiner.exe -pool ssl: //eu1.ethermine.org: 5555 -pool2 ssl: //us1.ethermine.org: 5555 -wal ******************* ******** -proto 3 -retrydelay 5 -logsmaxsize 0 -acm -cvddc 850 -cclock 1150,1160,1160,1160,1160,1150,1160,1150 -mvddc 850 -mclock 2080,2150,2150, 2150,2150,2150,2150,2150 -tt 55 -tstart 50 -tstop 75 -fanmin 30 -fanmax 80 -hstats 2 -wdog 0 -rxboost 1 -log 0
pause