crwdns2934241:0crwdne2934241:0 Engo

crwdns2934249:0crwdne2934249:0:

Hi

I have exactly the same problem, the difference is that i have an iMac intel 20'' 2007. With this difference there ir no independent graphics card, so i can't replace it. Wish it's not all the logic board.

The first 3 LEDs are on but the 4th never turns on.

Any suggestions?

ty in advance

crwdns2915684:0crwdne2915684:0:

open