The screen fleshed and turned black with only white lines,when working.I turned it off.After that,it cannot be started up to desktop again.I have tried to pressed shift key, it keep restarting...Have to turn off power to stop it. Please help. *(>﹏<)
iMac (27-inch Mid 2011), OS X Yosemite (10.10.3)
Good day.
Seems like your mainboard got damaged. You will have to take it in for repair at apple. Hope you took an extended warranty on it, that will help a lot. Otherwise it might be quite expensive.
Good luck.
Regards
D
Good day.
Seems like your mainboard got damaged. You will have to take it in for repair at apple. Hope you took an extended warranty on it, that will help a lot. Otherwise it might be quite expensive.
Good luck.
Regards
D
Could it be the damage of ram ?
Finally, it turned out the problem of the display card, it was replaced by Apple Store.
Finally, it turned out the problem of the display card, it was replaced by Apple Store
Computer repeated to start up,never comes to desktop
