I line on screen
I have just purchased an iMac 27 inch late 2012 but what I can't work out if it's the graphics GPU or the screen everything works perfectly but has one single thin line to the left. I have fixed so many of the old graphics cards on the magnetic removable front Imacs I've lost count.
I know the GPU is soldered on this particular brand.
But how do you work out if it's the screen or the graphics card image attached?
Thanks.
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