How would I know? I don’t have such a machine.
Check the size of the chip, compare it to the size of the stock firmware.
If size fits make a valid dump (at least 2 a100% identical dumps with a structure UEFIToolNE recognizes) and compare it to a stock firmware. If it looks similar, contains some µcodes (preferably close to the ones in a stock firmware) it might be what you’re looking for.
Or check other threads where someone fashed same machine type.