dgpu laptop doubt

Is there a way to change the bios of my 7670m dgpu for an 8750m the latter is very similar also has current amd support

all this under a laptop g42072la

I tell you I have a hp laptop whose dedicated 7670m (the computer has an 8650g as integrated) I cannot make it work from win 7 to win 10 in any program and games and win 10 when selecting gpu from the screen menu of said OS does not recognize the 7670m (If you do it in device manager like 7600m series) but the strangest thing that only happens when I use the dual channel of the ram (4 + 4gb) in single, the dgpu works without problems


using the bar edit program I have found the records of both gpu

8650g


https://i.ibb.co/tKmqRfQ/Sin-t-tulo.png


7670m



https://i.ibb.co/HP7qccV/Sin-t-tulo1.png