When I turn on my iMac 27 it beeps every 4-5 seconds and the screen is black. Anyone experience this and please advise how to remedy the problem. Thanks and God bless!
iMac
Posted on Mar 8, 2016 1:17 PM
Q: imac beaps every 5 seconds
For info:
https://support.apple.com/en-us/HT202768