iMac 2012 White and black stripes on the monitor!
iMac 27" core i5 AMD Radeon
OSX: El Capitan
I have a serous problem, my iMac have White and black stripes on the monitor, if i restart after typical Apple Sound, next white background with little Apple grey....show White and black stripes about 2/3 minute.
And then restarts on a continuous cycle always with the same sequence, what could it be?
I suspect the problem is the video card, how can it even after 5 years of low usage?
Thanks to everyone for help
Final Cut Pro X, Mac OS X (10.6.8)