>>723153740 (OP)
Here are quick signs your graphics card might be defective:
Visual glitches – screen flickering, artifacts, or strange colors.
Crashes – system freezes or restarts during games or GPU-heavy tasks.
No display – monitor stays black even though the PC powers on.
Driver errors – frequent crashes or errors in Device Manager.
Overheating – unusually high GPU temps or noisy fans.
Test it in another PC if possible to confirm.