Computer black screen crash

Today i was playing minecraft and suddenly my pc was on a black screen, and audio was still playing for a couple of seconds, then it stopped, and my keyboard lights froze, and i couldnt do anything on the pc, so i had to hard reset it. It was fine after booting back up, however i couldnt find anything about it in event viewer. It is normal? I do have an AMD graphics card if that helps, but can someone confirm whether this is normal or id i should be concerned