Please do not waste you ETH or BTC on this as I have and found out the hard way wasting 0.3 ETH on this and not even getting any close to the hashrate this person was quoting. Also all these bios mod have loads of GPU errors.So don't waste your money.
I guess thats how real economy works...some false advertising and you get your money.
meanwile, 300+ people downloaded my ROM and I got 0.07ETH donated for my effort
As some smart guy said 30 or so years ago: "Greed is good!"