I have the SAPPHIRE PULSE RX 580 8GB HYNIX.

I modded the bios copying the 0:1750 string to 0:2000 and 0:2250, this gives me 25,5 m/h, and 27 with core at 1100 mem at 2150 and vcore at -96 and powerlimit at +30. i found this http://1stminingrig.com/best-bios-rom-for-sapphire-pulse-rx-580-8gb-oc-hynix-memory-30-mhs/ but my firmware is 256kb and has different timings, mine does not have 1:x og 2:x so i can't use it. Any suggestions to getting this to 30m/h?