Ir para o conteúdo principal

Late 2011 model, A1278 / 2.4 GHz i5 or 2.8 GHz i7 processor.

581 Perguntas Visualizar todos

Why does the screen freeze and show black 'barcodes'?

Block Image

My MacBook Pro screen freezes and shows black barcodes occasionally. Sometimes it happens with a scary roaring sound, causing me to push the power button immediately. It seems that without switching the power off, the laptop won’t restart itself. It happened the first time after replacing the original 2x2GB RAM with the new 2x4GB RAM and the original HDD with the SSD. See the picture above.

MacBook Pro 13" Unibody Late 2011

Respondido! Ver a resposta Também tenho esse problema

Esta pergunta é pertinente?

Pontuação 0
Adicionar um comentário

2 respostas

Solução escolhida

Remove the ram stick from the lower slot and try the computer. This is a well documented ram issue with the MBP 13” 2012.

Esta resposta foi útil?

Pontuação 1

Comentários:

Thanks a lot! I'll try that. Do you think changing RAM to 2x8GB might solve the problem? Or is it a socket/logic board issue?

por

Yes logic board ram socket issue.

por

Adicionar um comentário
Pergunta Mais Útil

I would double check the RAM to make sure it’s seated however in my past experience with a 2012 non retina pro, it had to do with the motherboard. After I dropped mine it constantly had issues like this where it would freeze up and become unresponsive.

Esta resposta foi útil?

Pontuação 1

Comentários:

The 13" models use the main RAM for video RAM as such a bad SO-DIMM or socket can cause video issues like this try taking one module out to see if its stable and then try the other in the same socket slot. Then repeat in the other socket slot. If neither SO-DIMM made a difference in either socket then you have a deeper issue.

por

Thanks, Jesse! Did you change the logic board to fix the problem? If yes, did you choose the same logic board or a one with better performance? I'm thinking of changing my i5 logic board for the one with i7. Here they say it fits the late 2011 MacBook Pro. However, I'm not sure if it can make a big difference.

por

Thanks @danj I'll do that!

por

@electric_forest at the time it was covered under warranty so they used the same board every time but I still went through two or three boards in the 8 months I had it.

por

Adicionar um comentário

Adicionar a sua resposta

Ilya será eternamente grato(a).
Exibir estatísticas:

Últimas 24 horas: 0

Últimos 7 dias: 1

Últimos 30 dias: 6

Duração total: 98