Is this graphic card issue?

sloth1791

macrumors newbie
Original poster
Mar 25, 2010
10
0
S.Korea
Looks like it to me. What happens once it boots all the way up?
In my case when iMac rebooted every 3 times, it shows up.

I decided to return it again because iMac received first didn't show this problem up.
 
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