I have the G751JL unit and the graphic card is throttling at 70 degrees even to it says in the drivers the max temperature before it starts to do that is 85. Is there any way to fix this by yourself?!

I have random black screen without display driver crashes when playing games on my laptop.Updated everything, drivers, bios, power option set to high performance, no overheating problems....temp around 65I've tried everything and it is still happenin...