is my display failing, or ... ... ?

[tonykelly]

hello,

i have an old imac g5, 20", no camera, it's one of the early '05 models.
it's old, but it works well for me and i'd like to keep it if i can.

in the last week, this has happened 3 times:
- display either goes to gray with some jagged edges, or to black
- i reboot, and there are flickering horizontal lines in the display
- which then disappear and all runs ok.

is this a display issue, or the logic board, or ... what?

 

[synicalx]

Could be the display or graphics card, easy way to tell would be if the problem gets worse when your doing something graphically intensive like playing a 3D game.

 

[alust2013]

Likely a logic board/graphics issue. If it is, it will probably cost more to repair than it's worth putting into that old of a computer

 

[tonykelly]

DT&T says they can replace with a refurbished logic board for 295.
which is tempting to me, as a cheap and cheerful solution...