I need to check to see if graphics card is good still

monitor is showing vertical lines when i am on my computer...is it my graphics card and my monitor going out...? i have changed 3 monitors and all do the same thing... i was told could be my graphics card... i need to check it
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More about check graphics card good still
  1. If you have a unque cable connecting through monitor,there is the problem,is the cable,try to change it for a new one and connect again o any monitor.
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