What is a GPU and what does it do?What does GPU stand for? What guide should be followed to replace it? What part should be ordered to replace it?
Replaced logic board. Chime, black screen, nothing else.I replaced the logic board in order to fix a "white screen". Now there is a healthy chime, but nothing else but black screen.
White screen - Pink vertical lines - White screenRef: iMac, 20-inch, 2.66GHz Intel Core 2 Duo - experienced white screen. I followed corrective procedures given on multiple w...