and you're checking your temps how ? after the machine shuts down and you restart and look in the BIOS ? heat dissipates quickly so you're not really getting an accurate reading.
try a different app for checking temps. I never really relied on software like that.
sorry but I still think it has to do with heat. if you're good at pulling stuff apart ( and reassembly ) try thermal new paste on processor and on gpu. ?? I don't work on laptops so I'm a little lost here.
run it as open as possible and see how it goes..??
I used GPU-Z and msi afterburner to check my temps and clocks. The computer doesn't shut down when i start lagging, neither does it get really hot. Im building a new gaming desktop soon, but for now, i have to use this laptop while i save up my money.