You cant make changes to a GPU's BIOS like you with a motherboard BIOS, so there really isnt anything that can get reset. Your able to change the BIOS but thats when you want to do something like unlocked pipelines.
its a 6600gt, and removed it from my old motherboard to my new one and nothing dont get any screen output, tried it on other pcs and exactly the same problem, i assume its knackered but i dont wanna give up yet lol