Hello everyone,
I have an iMac classified as obsolete/vintage by Apple and so I had to fix it by myself. The problem was a frozen screen on the startup (grey window with the apple, vertical stripes and weird colours) that has been partially solved with a reballing on the graphic card (AMD Radeon HD 6750m 512Mb).
The problem, now, is that sometimes I see something like "undervoltage" of the screen (brightness reduces and then is restored, in less than a second, resulting in a sort of flashing).
Do you think that I can definitely solve this problem by replacing the graphic card with a new one?
Thanks in advance and sorry for my bad language.
I have an iMac classified as obsolete/vintage by Apple and so I had to fix it by myself. The problem was a frozen screen on the startup (grey window with the apple, vertical stripes and weird colours) that has been partially solved with a reballing on the graphic card (AMD Radeon HD 6750m 512Mb).
The problem, now, is that sometimes I see something like "undervoltage" of the screen (brightness reduces and then is restored, in less than a second, resulting in a sort of flashing).
Do you think that I can definitely solve this problem by replacing the graphic card with a new one?
Thanks in advance and sorry for my bad language.