Macbook Pro screen glitches, 3 beeps, NOT THE RAM

I expect that if we ever find the root cause, overheating will be involved. But I can tell you that of all of the recommendations in this 6 page thread, the only ones that worked for me were: (1) no RAM chip in the bottom slot on the bay (the one closest to the keyboard when the machine is upside down and (2) the one I recommended just above - which allows you to keep both RAM chips in place (this one: MBP 13” Display Glitches - “barcode freeze” - SOLID WORKAROUND FOUND ).

This Mac (replying on it now) has been running since Monday morning with no difficulty. I've "squeezed" it a bunch of times; closed it at night without doing any shutdown or sleep commands; opened it up and started using it again; charged it; used it; inserted USB drive, moved some files; you get the idea.

My 13" MBP is back, with 16 GB of RAM (2 x 8GB). So my advice is to read that post just above yours and see if it works for you.

Good luck.

I experienced the exact same issue with my mid-2012 MBP 13 inch, and agree with everything smilingeyes said. I would like to especially emphasize the overheating part - mine had overheating issues for about a month before it crashed. Make sure your laptop is sleeping before closing it, I have a "hot corner" for sleeping that makes it really easy to quickly put it to sleep. I think there is different levels of severity to this problem, as mine seemed to get worse over time. Just because the problem is "bad" now doesn't mean it can't get worse, so try smilingeyes' solution asap, and let your fellow mid-2012 MBP 13 inch owners know about this so that they don't get screwed as well. I really hope Apple addresses this, but I'm not too optimistic.

Side note - my hard drive crashed about 4 months after the "barcode" crashes began. This seems to be a common, yet not all-inclusive problem on this thread. My computer is not even a year and a half old with no major drops or liquid spills on it, so I fail to believe that this is just a coincidence. Hopefully somebody who is better with computers than I am can put this all together because it makes no sense to me.

I had exact same problem with my Macbook 13'

13 Inch MacBook Pro Mid 2012

Processor: 2.5 GHz Intel Core i5

Memory: 4GB 1600 MHz DDR3

and I read all the replies, I placed just one RAM on the top slot as recommended here, It seems to be working good so far.

Thank you so much for you guys help.

Apple should do something with this problem!

I would suggest everyone experiencing the problem to provide your feedback on Apple product feedback. Just open apple website and you can find the feedback button there. I did mine recently and hopefully with more feedback from people, apple would do something about it. Fingers crossed.

Just to make life easier.... here is the link for Apple product feedback. http://www.apple.com/feedback/macbookpro.html

The comment box has limitation on character so you need to be really concise. People need to give feedback as much as possible for Apple to pay attention to the defects of their product...

Hey!

I've been having the same problems with a mac book pro mid 2012 since I updated the original RAM to 16GB. The computer crashed on every test I ran with Rember. When I changed back to the original sticks, the problem was still there.

However, I noticed that the computer freezed (with weird colors on the screen) when the computer was physically moved! So I opened the computer again and made **** sure those sticks was inserted as far as possible into the RAM bay. The computer hasn't crashed since.

regards,

Riberr

exactly same problem with my Macbook pro 13' mid 2012. i7 2.9Ghz

I'm pretty sure I just started getting these problems. Have the same specs. Upgraded the RAM about two years ago I have one 4GB in each RAM slot. I also provided feedback to Apple. Really don't want to put more money into this computer.

My problem is when putting pressure on the bottom left of my computer or anywhere around that area it will freeze, sometimes glitch the screen, and then shut down. I only heard it beep three times on start up once and it was sitting in one place for a long time before that happened.

Have you checked your battery?

Same problem here...

Just sent feedback to apple. Hopefully something happens. Already replaced my RAM and SDD in the course of finding a solution. If anyone finds a solution other than removing one RAM from the slot, please report! I'd really appreciate any help!

Just FYI: I had a Macbook Pro before with a known issue with the graphic board. Apple knew about this issue and had a replacement program for the affected Macbooks. But since the issue with my old Macbook occured only 3 weeks after the program ran out i didn't get any support anymore.. I tried to talk to Apple about this but there were no gestures of goodwill. So I'm not very optimistic with this know...

How long did the replacement program run? Usually that is at least 2 - 3 years. Why didn't you take in your machine for a free repair?

And, have you checked your battery?

Thanks for the fast reply!

The replacement program ran for 3 years I think. But in my case the issue occurred about 4 or 5 weeks after the program ran out. I took my Macbook to Apple but they were not willing to accomodate in any way. Please don't get me wrong, I just think that if I buy a product that costs that much and there is a known issue like this, the company could at least be cooperating a little bit (even after an official program ran out).

I had my whole my whole Macbook Pro checked. They suggested the harddisk and RAM replacement. Battery was also checked.

I had the same problem, and it was resolved by removing the RAM closest to the motherboard as suggested... What is really peculiar is the fact that I can use both RAM slots again after i installed Linux instead of Mac os.. So we must conclude that it is a software problem disguised as a hardware problem... shame on you Apple!

Exactly same issue (three beeps with screen issue and shutdown), with the exact same fix, MB Pro mid 2012. Take the RAM out, replaced both still did not work. Left the bottom out just replaced the top and everything is back to normal. I ended up replacing the top with an 8GB so I did not lower my performance from my two 4GB I replaced.

Sadly on my less than four your old machine this is my third part failure and this machine is only used at home. The drive two years ago, something else the year before (another known issue) and I think I'm at least on my third charger. Disappointing to say the least.