GPU temperature goes to 100 degrees after 10-20 minutes of playing and screen shuts down with message : power saving mode.

[Meskhi]

so today happened this while i was playing same game that i have played for years "smite", i restarted and try playing again and after 10-20 mins same thing happened. this happened me for 4 times now is my graphics card dead? its gt 630.

 

[hang-the-9]

Could be dead, you can try removing the heatsink, cleaning it off, applying net thermal paste and see how it runs. Also check CPU and maybe do the same there.

 

[ghost storm]

Sounds like a cooling issue for sure, make sure fans are working on the gpu, and try applying new thermal paste and see how it runs like hang-the-9 suggested