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philm001

macrumors regular
Original poster
Sep 29, 2018
109
5
Hello all,

I have had a iMac Late 2013 for the last 3 or 4 years and I am seeing a graphics issue. It is very similar to the picture attached to this post.

From what I have been reading online, it appears to either be a graphics card issue or the LCD screen is failing. I am thinking to buy a thunderbolt to HDMI converter to test the graphics card.

But first, I wanted to turn to the community to see what you guys think.
 

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mikehalloran

macrumors 68020
Oct 14, 2018
2,239
666
The Sillie Con Valley
From your screen shot, it appears that Adobe Premier Pro is taxing your GPU big time. It can also be a write to disk issue but I would need to see it in real time. With APP, it can also be not enough RAM. Or any combination of the three.

There are a few ways to address this on your machine but it may be throwing good money after bad. The best is to upgrade to a Mac that runs Premier a lot better. I would need to know a lot more about what you are trying to do to know which iMac Pro that is.
 
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