Conserte seus objetos Comunidade Loja

Model A1286. Released February 2011 / 2.0, 2.2, or 2.3 GHz Quad-core Intel Core i7 Processor

586 Perguntas Visualizar todos

Opções

Repeated boot chime and no display

Earlier I had this Artifacts on screen, not sure if LVDS cable loose or GPU issue. I resolved it and MBP was working fine, but now suddenly it won’t boot. I am hearing repeated boot chimes indefinitely and nothing on screen. When it was working I noticed that left shift, 7,8 &9 keys were not working.

I tried to reset SMC & PRAM but not sure if it works(as the left shift wasn’t working earlier). Sometimes it boots with no chime and nothing on display.

I did face this issue when I was trying to solve the Artifacts on screen, not sure if LVDS cable loose or GPU issue issue . Somehow I surpassed it and was able to boot into linux. But I don’t remember what exactly I did.

Responder a esta pergunta Também tenho esse problema

Esta é uma boa pergunta?

Sim Não
Pontuação 0
Adicionar um comentário

1 resposta

Filtrar por:
Mais úteis Mais recentes Mais antigas
Pergunta mais útil

Opções

I may have missed a small detail which I just noted in your original question (sorry I didn’t catch it sooner)

Your update image was not the internal display it was an external display! That pushes the issue to the logic board not the internal display. That is your systems GPU which is messed up! I haven’t see one react as yours was in the original post, I’ve seen similar display defects from damaged T-CON and LCD panels.

So where are we now?

Sadly, the logic board will need replacing to get the discreet GPU working again. Your only other option is to disable the discreet GPU and only use the intergraded graphics services within your CPU.

There are a few ways you can go about it this is the best Disable MacBook Pro Dedicated GPU

Esta resposta foi útil?

Sim Não
Pontuação 1

2 comentários:

Yes the discreet GPU isn't working, so in my earlier fix I already disabled the discreet GPU(using the fix you mentioned) and MBP was working fine. But now this issue of repeated boot chimes, why could this happen ?

por

What can I say the logic board has gotten worse ;-{

por

Adicionar um comentário

Adicionar a sua resposta

Andy Crz será eternamente grato(a).
Exibir estatísticas:

Últimas 24 horas: 0

Últimos 7 dias: 0

Últimos 30 dias: 1

Duração total: 51