Bios Mods -The Best BIOS Update and Modification Source

Hi all I'm a little new to the whole business about white-list.
So I have a few questions that I have not been able to find an answer to despite googling for a couple of hours to find the answer.

I just bought a intel 6300 wifi pci-e card and noticed that it won't work with my toshiba laptop.
The reason is that it is a lenovo branded version of the nic, I think it has to do with some sort of white-list.

I have a Toshiba satellite p750-10R laptop and according to forums Toshiba doesn't have a white-list in it's bios.

So the nic must have some sort of firmware saying that it should communicate with the bios and check if it is a lenovo computer.
Is this correct?

So the bios white-list problem is actually that the bios should say that it is a lenovo to the peripherals if the peripherals firmware is asking for it?
The modd that could be possible is that the bios should say its lenovo?

Is it possible to flash a nic firmware to make it like it is not an lenovo nic ?

Well all this is assumptions since I don't know how it all works. I would be very happy if someone could explain how it all works.