The problem with gt630m

A laptop with two graphics cards intel hd3000 and gt630m, in fact if disable gt in games everything is fine, only the FPS , but if include and 630, in the games, it games starts to flicker the screen hang happens immediately, after a minute, sometimes nothing buggy played 5 hours straight and all good, but now again everything flickers, freezes, and blue screen of death popping up.
Thermal grease is normal, vidyuhi not dispersed, the driver latest for my system, the case is not overheating, could be the map the end?
Happened 5 times after blink out blue screen came on 6 times prior to this for the hundredth time changing the settings in the panel NVIDIA came into the game and lo and behold everything worked fine with it, even more than 5 hours, but following on the story with flickering screen the same as with the blue screen or crashes from the game to the desktop and says that kwidiski driver stopped responding and has recovered.
Driver different put and 13 and 15 years and 18более early previously removed the wood through the tool, zero sense.