The service was available before the mining Cards hit the market. you can google the forum to find the "scammers" that sold the 40MHASH modded 1070 bios'es. A well known bios scammer is wolf0. He made 100BTC on the scam that turned out to be a real improvement.
The improvement is now implemented in all the Nvidia mining cards.
Does it mean we don't need to manually mod our 1080ti? or what?
I see this topic for bios modd:
https://bitcointalk.org/index.php?topic=1758267.0