Chosen Solution
how to change my lenovo g 50 cpu and gpu?
You can not change the CPU and GPU in this laptop….
If these are diagnosed faulty, they can be replaced with exactly same models using specialised soldering equipment, however they are most likely non-upgradeable due to high firmware and BIOS integration.
CPU and GPU in this laptop are fixed , hence you cannot change them.
I suggest attempting to reset the cmos on the motherboard via a jumper labeled pwr cmos, power jumper or just plainly, a big shiny flat yet round coin style battery. There are lots of tutorials on that topic with more info than I care to share here. Good luck!