Is this something to worry about?

davelanger

macrumors 6502a
Original poster
Mar 25, 2009
828
2
I was at my parents house yesterday helping them with their iMac and when ever its rebooted right near the end of the boot up it looks like this




Is this something to worry about? It the graphics card going already, it only happens during boot up and its only there for a few seconds.
 
Last edited:

photosmike

macrumors member
Mar 10, 2010
71
1
Artifacts on Screen

My Mid 2011 21.5 iMac displayed a similar image one time about 2 weeks ago. I have no idea what caused it but, It has not returned.
 

davelanger

macrumors 6502a
Original poster
Mar 25, 2009
828
2
My Mid 2011 21.5 iMac displayed a similar image one time about 2 weeks ago. I have no idea what caused it but, It has not returned.
When I reboot my parents iMac, it happens every time. Hopefully its not a graphs card issue but if it was, I am sure they would see it happen when on websites as well.
 

DeltaMac

macrumors G3
Jul 30, 2003
9,584
2,329
Delaware
It won't hurt anything to boot that iMac to the built-in hardware test.
Restart, holding the D key (D for diagnostics !)
You can run both the standard and extended tests.
 

davelanger

macrumors 6502a
Original poster
Mar 25, 2009
828
2
It won't hurt anything to boot that iMac to the built-in hardware test.
Restart, holding the D key (D for diagnostics !)
You can run both the standard and extended tests.
Ok thanks, next time i am over there i will try that.