I have 6x Sapphire RX 470 4gb elpida memory, mining edition (11256-21-21G), with bios modded. My Mother Board is an asus H110 pro BTC+

SMOS with RX OS DAGFix
Core: 1150
Mem: 2100
core undervolting: 800
powerstage: 5
command line: -wd 1 -r 1 -epool stratum+tcp://eth-eu.dwarfpool.com:8008 -ewal $walletETH/$rigName -esm 0 -epsw x -allpools 1 -mport -3333 -asm 1

I'am getting 176MH/s for 6 cards (about 29mh/s per card)

My power consumption is 1000 watt at the wall. What is your power consumption? Is 1000watt too much? Any ideas how I can improve?