i just got this Pc 1 week ago because the grahique card and i got the same of your problem
that not fair i spend much money to buy it
it was work good 1 week ago i was playing metal gear V without any problems but i just woke up today and the whole pc froze after 5 min
and i couldn't even boot to the windows anymore so i formate the whole windows to new one but after trying to install AMD driver i got the problem again
the pc froze
I too have the same model i.e Toshiba Satellite P50-B. I was using photoshop and all of a sudden the system froze. I switched off the laptop and tried to restart it. But it used to get stuck after the Toshiba logo. I formatted the laptop using each and every windows. The format process runs smoothly but when I try to install the graphics driver, the laptop freezes again and again. I tried to install the driver from the official website and driver pack. But none of those were successful. I am tired of repeating the process again and again. Please, suggest any methods if u have any idea regarding this problem.