주요 콘텐츠로 건너뛰기

2011년 하반기 모델, A1278 / 2.4 GHz i5 또는 2.8GHz i7 프로세서.

591 질문 전체 보기

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

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

점수 0
댓글 달기

답변 2개

선택된 답변

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

해당 답변은 도움이 되었습니까?

점수 1

댓글 2개:

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?

Yes logic board ram socket issue.

댓글 달기
가장 유용한 답변

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.

해당 답변은 도움이 되었습니까?

점수 1

댓글 4개:

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.

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.

Thanks @danj I'll do that!

@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.

댓글 달기

귀하의 답변을 추가하세요

Ilya 님은 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 0

7일 전: 0

30일 전: 0

전체 시간: 154