I can share my .bat. But what is "lock" values?

PhoenixMiner.exe -pool pool -wal wal -pass x -worker w1 -stales 0 -cclock 1235 -cvddc 856 -mclock 2250 -mvddc 800 -gt 36 -mi 14 -log 0 -amd -tstop 75 -tstart 72 -clKernel 3 -clNew 1 -leaveoc

It's for Sapphire RX 580 8 Gb SE with hynix MJR memory.
-clKernel 3 - is for double kernels. Not for 4Gb cards...

P.S. -gt parameter is individual for each card. It depends on clocks and timings. Not depend on -REF. On -ref 5 and -ref 50 best -gt parameter will be the same. Best way to find optimal -gt value is to use autotune by "z" key during mining. It can last 5-10 minutes to auto find best value. Just be patient. When value will be found you can see it in stats by "s" key and add it in .bat file.