it's MSI GeForce GTX950 Gaming 2GB GDDR5

when im playing fifa/csgo or other games, it get 80ºC + and then, black window and i must restart PC. I tested every game without the graphic card and all went fine.

it's a problem of graphic card for sure.

but it's a problem just of my graphic card or all 950 have this problem?

No that's an issue with your card specifically. 80C or 80C+? That's pretty hot either way.

yeah, i just call the shop where did i buy it

lets see what they say me..

If the PC restart it's not the GPU it's the CPU that's over heating.
80C is still normal if you GFX card is running @ maximum capacity.

Do you have suffiscent air flow in your case?

Not really, Especially since he's saying the screen is going black, and then he's forced to manually restart. That sounds like a GPU issue.

this

im forced to manually restart the PC, just a black screen, but i can hear the game/music with that black screen, just the image go off.