I don't touch voltage and I didn't win any lottery lol. I have the worst luck ever, I paid for these cards both were 1080.00 plus another 188.00 for water block shipped to my door. I should correct my self I worded wrong. I can get both cards at same time to run at 1560. Cards by themselves can run at 1570. When I first bought these cards though i was able to complete a few runs at 1580 paired together.