Crashing too desktop

[sushiboy562]

Everytime i play a game,30 mins in the screen turns black and the game crashes too the desktop. I still have the cursor of the game and i can't click anything on the desktop. This forces me to restart the computer. Does anyone know how too fix this or what can be the problem.

 

[Hyre]

Does this happen with every game?

What are your temps like when it crashes?