Hi! I simple modded the timings (copied the 1500 in all higher) of my rx480s (msi, asus, xfx) and encreased my hashrate from 150 to 170mh with overclocking
My shares fell down to one third. After i noticed, i disabled the oc the shares went up, but are still less than without OC and Mod.
Thought bios modding increases hashrate AND shares
People wrongly think that because their local miner has a hashrate of 170+, it'll be the same by the pool.
You need to test mod your cards to find the best effective hashrate, because what matters is the number of shares you actually submit. So, your rig can be more efficient at 160 than 170Mh/s (I'm talking locally).
Often, overclocking too much can have a negative effect on your effective hashrate.