Is my Graphics DEAD?

KhairiKZ

Honorable
Sep 11, 2013
23
0
10,510
My computer was formatted and all clean of virus. The I've download MSI Afterburner and just messin' up with my AMD Radeon HD 7770 graphic. I accidently click Apply the my screen just didn't stop blinkng. I just press the restart button and when the windows load, after opening games it just stuck and screen blink once and it shows this message:
Display Driver stopped responding and has recovered. Display driver AMD Driver stopped responding and has succesfully recovered.

Any solution to fix this? My PC Specs:
Mobo: Gigabyte 970A-DS3
Processor: AMD FX8320 3.5GHz
HDD: A cheap Samsung HDD 750GB
RAM: 16GB 1333MHz (4x4GB)
Graphic: Sapphire AMD Radeon HD 7770 1GB GDDR5
PSU: AeroCool Strike-X 600W