MacBook Pro - Faulty Logic Board

This is what was happening when I tried to switch my MacBook Pro on. There was no chime and nothing on the screen but the sleep and battery light was on. Apple replaced the logic board and it worked again. The part number was 661-4955 PCBA MLB 2.2 GHZ REV2.

Category:

Science & Technology

Tags:

• faulty
• mac
• macbook
• pro
• no
• chime
• sleep
• light
• battery
• logic
• board
• 661-4955
• pcba
• mlb
• apple

[foxylildancer15074]

I seem to have the same problem and computer. Is yours an early 2008 MBP?

[rosshuggett]

@foxylildancer15074 Yes. I think so.

[tslingshot]

Did you install OS Lion recently before your MBP died ? I had the same problem as you and so did another friend. Both of ours died after OS Lion installed

[rosshuggett]

@tslingshot No. It's still running Snow Leopard.

[william20111]

The beep and flashing light means there is a problem with the EFI firmware. Essentially meaning its bricked and needs a new logic board. I have the exact same problem and my macbook was out of warrenty! I decided to upgrade at the time but i still have the dead macbook at home and im thinking about trying to repiar myself at some point.

[maxval54]

I currently have the same problem. I went to the apple store and they want to change me 400 pounds for the service and replacement of the motherboard. WTF?? Obviously i took my dead MBP back and I'm currently thinking about getting a windows computer. I don't know what to do, i want my mac back but it seems like a big waste to spend that amount of money in just a motherboard!

[Qurnah]

To the previous two comments. MY MBP died few days after I installed Lion.

It failed to sleep when I put to sleep, then when it used to wake up, the whole screen was darkened. Anyway, I'm using Windows now :\