A bit research reveals a couple of good tips from Apple’s own support site:Īfter review, I think easy enough, I’ll just swap out the RAM. Interesting!Īfter getting home from work and a bit of investigation on-line, it was pretty easy to determine many others have run into the same situation. In addition, it would beep pretty loudly 3 times, and then stop and beep again. The symptoms presented were that the machine would be booted up, and working just fine but then the screen would kind of go ‘green’ and have a bunch of horizontal lines on it. My oldest son had texted me at work and told me that his Late 2011 model 13″ MacBook Pro laptop wasn’t staying powered on. I had an interesting situation present itself earlier in the week.