Hi,
I've got a L50D-C with R5-M330 GPU that won't accept it's drivers (screen goes out during driver installation then windows freezes while loading after forcing to restart)
Symptoms of a dead GPU it is, so I've went to UMA conversion but didn't find any schematics/boardview/info anywhere..
After some experiment I've found the solution and decided to share, it was quite simple, just remove the GPU's coil and PWM chip (isl62771)