Late 2012 Mac Mini. Updated OS X with Software Update, upon restart it is instead beeping 3 beeps in a row, silence, then 3 beeps in a row again, for hours. It's getting hot near the power cord. Screen is black. I finally powered down successfully by holding power button.
I've seen older posts saying this signals faulty RAM in Powerbooks. I did upgrade the RAM to 16 GB myself when I bought the Mac mini, it has always worked fine (apart from snowy screens when it first awakes or starts which eventually go away and I understand this update was supposed to address...).
Have I voided my warranty by installing the RAM myself?
What to do?
Run Apple Hardware Test. Run the extended tests. If it fails OWC will replace it at no charge. A failure could be temperature related but in any event OWC memory is guaranteed for life. Remove and re-seat each of the modules to verify they are properly installed.
The display may or may not be related to anything. It will be difficult to draw any conclusion without another display to substitute.
Tommy Boyo wrote:
And concerning RAM, I've noticed I can't get the Mac to ever utilize even half of it... so I don't understand what the benefit is.
Correct, there is no benefit of additional RAM unless and until your system and what you do with it requires more than you have. OS X manages its resources efficiently, and there is no way to change how it does that.