use bios from Toshiba Satellite 3000 on a Satellite 2800-202?

I'm considering this option because the Satellite 2800 is limited to 192 mb ram (64 mb soldered on + 128 mb SD100 ram).
I bought a 256 mb chip but the bios does not accept it.

The machines are not all that different, the 300 has a cpu that is about 250mhz faster and a nvidia Geforce video instead of the Savage chip on the 2800.
Some of the later 2800s did support 128+256 mb but the bios files come packaged together, does not seem possible to choose the 'wrong' one ..

So, is this likely to brick my old Toshiba?