820-3299 - Black screen, no image on External screen or display

[nelo1012]

Hey guys,

I have this 820-3299 (IMAC) and it came in for no image, do these boards have the gpu issues as well, i want to avoid spending great amounts of time trying to repair it.

thank you guys in advance,

 

[2informaticos]

Any USB activity?

 

[dukefawks]

GPU issues are very rare on these. Do a PRAM reset and see if it chimes too.