iMac has white screen, then reboot again and again.
My iMac 27” 2011 recently has an issue:
- After power it on, Apple logo shows up with progress bar loading.
- It then becomes white screen for a while.
- Then it turns black and reboot.
- Repeat step 1, 2, 3.
- Try to run Apple hardware diagnostic program, it seems fine.
Any clue what problem this could be and how to resolve it?
Here are some pictures I just took.
Это хороший вопрос?