That's what I have, a Sapphire card. I was just poking around at the plastic next to the logo on top and it didn't exactly feel like a button, but it did give a little, so it might've triggered it.
One of hte reasons I like Sapphire cards is they often do have dual bios. Comes in handy on occasion.
What is the card? A 79xx? R9 290/280 ?