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Post originale di: Alexander deLarge ,

Titolo:

Screen turns black after 10 minutes, will not wake up

Testo:

Hi there,

Odd problem with 27" iMac mid 2010. The customer chipped it in, screen turns black although Mac is still running, no wake up possible. ASD says: Replace the LED driver board.

Did so, everything is fine. The customer being on holiday, I had the opportunity to 'torture' the thing nonstop for a week: all programs running + youtube videos -> not a single failure.

After a week of usage, the poor Sir brings it back -> 'Same as it ever was ' ( Talking Heads )

Now ASD says: Video controller failure ( Test #3 - #12 open GL )

So whats this now? Logic board or video card? Repairable or scrapyard?

Thanx for helpful comments.

Kind regards from Krautland

Dispositivo:

iMac Intel 27" EMC 2390

Stato:

open