GPU 970M in M15X

Hello everyone, I have an M15X, I recently increased the RAM to 8 GB with two 4 GB modules and changed the hard drive for a faster SSD. I have seen that it is possible to change the nVidia 270M GTX GPU board for a GTX 970 M and I would like someone to confirm this and what I would need to do on the laptop to get it to work, for example changing BIOS, what nVidia drivers would I need to do? use and if I would have to use a different power supply than the original one. Thank you and greetings to all