[Capt. Tom]

The sources say Boeing engineers are trying to determine if the microprocessor issue can be fixed by reprogramming software or if replacing the physical microprocessors on each 737 Max aircraft may be required.

What would you replace the microprocessors with?
A different type of microprocessor should be tested first and would be time consuming.- -Tom

[CodeToad]

The microprocessor replacement isn’t a 1:1, it would a be a dual processor setup.