I lowered the OC and it seems to run stable but hashing lower then claymore for some reason. I am getting 32mh per card and only 27 or 26 on phoenix. Is the -gt parameter has any effect on cuda?
i never used -gt command line, and here my start.bat (it's not config.txt)
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
PhoenixMiner.exe -pool us-east.ethash-hub.miningpoolhub.com:20535 -wal vickyzz.eth01 -pass x -proto 1 -coin eth -ftimeout 120 -nvidia
pause
with core -200, memory + 800 and PL 70% I get 32 Mh/s stable hashrate as reported by phoenixminer