I did not plug it in backwards, I triple checked because it's the first time I install a bios on the MVS.
Model is MV 1F (NEO-MVH SLOT1F).
Here's a picture of the original bios, in case it is useful at all.
I was going to just rule it out as a bad universe bios epromm, but the guy who sold it to me is telling me he needs to "check my MVS board and possibly mod it to take the bios". Which I find odd, as far as I know the universe bios is compatible with the MVS I have and I have not heard of any mods needed on the boards to take the chip. I could be wrong though, I'm new to this so yeah.