My MacBook Pro has a black screen and beeps 3 times and wont boot to utilities?
My macbook pro is beeping 3 times and has a black screen and won't boot to utilities?
MacBook Pro (17-inch Early 2011), iOS 9.3.4
Three beeps, especially at Power-on, is almost always caused by " not enough WORKING RAM to start up". If your RAM was working before, it isn't working now.
