Chosen Solution
Hi people!Short version story I decided to change the Logic Board of my Macbook Pro mid 2012. I have found one in this place. https://www.powerbookmedic.com/MacBook-P… Any special and practical considerations to have on changing a Macbook Pro Logic Board? Thermal paste?Would i have any trouble with a new logic board of 2012 and my Apple ID? some friend told me that could be an issueFor your experience, is Powerbook Medic a trustable Mac Parts seller? look all right but does not hurt to ask ;-)Thanks for your kind help! Best —Long version story ;-)My Macbook screen freezes. Sometimes minutes in use sometimes after an hour. I did ask this question a while in this forum and for a while it was working. I deleted almost every App, format the Disk, install antivirus and used Onyx to scan the system.Now i send it to a repair service (non Apple) and they tell me it is the graphic chip. Not sure it is 100% right or they just say it as may be is a common diagnostic. The repair service charge quite a lot for repairing the logic board and not guarantee is given the repair will be successful. Update (07/09/2022) Hi people! Thanks again for all your help with this issue. I received the hard data cable and did change it yesterday. It is working without freezing now, so that could have been one of the main issues. However i did notice since i changed the optical drive for a second hard drive that the metal texture of the bay was imprinted on the interior of the bottom case. That means that when flexing they did eventually came in contact. I guess metal with metal could be a source of freezing too, right? Just to be sure, could i put some insulating tape on it? Would any 3M electrical tape would work for that or is a special tape? I guess is just similar to the thinner black tape the bottom case has, right? Thanks again and cheers
Well, I have a different view here! First the 13" models don’t have a discreet GPU chip like the 15" do. Instead it uses the intergraded graphics engine within the Intel CPU! So while the 15" systems has issues with the discreet GPU’s there’s none in this model. Next, I don’t think your issue is the logic board! It can be a few things like bad RAM, bad HD cable and/or your drive doesn’t have enough free space. So lets check things out! First see if you can run the onboard diagnostics, restart your system and press the D key Reference: Mac startup key combinations Depending on the macOS release it might not run. Let us know what the error/s you get if any. What is your drive? A Hard Disk Drive - HDD (spinning) or a Solid State Drive - SSD Also what is its size and how much free space does it have?
@uzapucax I asked, because I had a couple of cases similar to yours. I figured not without some difficulty since I thought it was the logic board at first, It seems that with time and small bumps here and there, the aluminum bottom cover loses some of it’s original strength and starts flexing more easily towards the inside. When the Mac is moved, when not lifted by the edges, it touches the RAM and thus crashes. Pay attention to move it around by the edges in normal use or exercise a little pressure towards the center/bottom to get confirmation the issue comes from that. Try opening the bottom and reseat RAM modules. If the bottom cover is bumped, it might be needed to replace it. Not knowing the detailed conditions nor the way you normally use your Mac, I can’t be more precise, but I believe you got all the info you need in case my theory proves right. Keep us posted, it’s always useful to get some follow up.
