I got my original PNY BIOS and the Palit BIOS open in HxD hex editor right now. The two are so very similar but there is a bunch of code near the end of the files that is probably some sort of digital signature.
I'm hoping to fool my PNY card into thinking that it's getting legit PNY bios but with different Power Limits.
I'm probably gonna end up bricking my card.
Update: Oh well, up past bedtime. Still got signature mismatch and hash mismatch error.