Originally Posted by MartyF81:
Apple Hardware test isn't perfect... it can only detect issues occurring when the test is ran and sometimes heat will cause things to act up differently than when they are cool or warm..
are you sure the progress bar isn't something installing like an EFI update? how long were you letting the bar load before forcing it off?
I am afraid it seems like you are having a hardware failure here....
Yeah, it's looking like motherboard failure. I let the progress bar stay like that for about 30 minutes before forcing it off.
It's possible something happened during an EFI update. Perhaps flashing the firmware would solve this problem