Hey, new miner also. Mining for 3 weeks allready have 11 sapphire nitro special edition 8gb. Stable 30.2 MH without modding bios. Dont have power meter, but seems my cards taken lot of electricify on globalpowertune 5. Trying to set 3. Stable for few hours now. How much mh i can reach if i flash bios? I'm useing core 1250, mem 2290 on ethos