hey guys im using this amazing simpleminning but im trying to get most of my rig so needed an advice for overclocing for fulll hashrate

i own 6 Saphire RX 470 8gb hynix memory

i managed to get it 178hash but is there possibility for more without any issue ofc.

my settings are

core mhz: 1150
mem mhz: 2150

Core Unvervolting: 900

powerstage 6

-epsw x -tstop 75 -dcri 5