replaced a1286 logic board but wont boot into os

This time, i caught the culprit: appleintelcpupowermanagement.Īnyway, i then removed the back cover ofthelaptop, placed it on the fan-cooling stand, and placed an ice pack beneath it. Started the installation which progressed in the first 2 mins, then a kernel panic appeared. So i created the el capitan usb as Dan and Dee suggested below.

after about 2-3 minutes, a kernel panic appeared on the screen and 15 secs after that the same sudden shut down occurred. Haven't been able to make it boot up since.Īfter trying to boot it up countless times, it finally boot ed up to desktop again. Tri ed to boot it again and lo and behold! It started up! Soon afterwards though, the fans spooled up and again it just turned off. I used thermal paste and fixed the heat sink properly on to the board. I did replace the heatsink without thermal paste.Īlso, some of the screws of the heatsink weren't aligned with the holes so I ditched those. Ok so I used a cooling pad and the boot went on for longer! The problem is that when I start it up, it starts to boot properly(apple logo, progress bar), then suddenly shuts down during the boot.Īlready tried booting into verbose, but it goes fine for a while then turns off too quickly for me to see anything.Ī thing that I noticed was that it turns off after variable times, like 1 time it went for about 15-20 secs but the next it turned off after 1sec.Īlso tried booting from usb but that didn't work too(same problem) I installed the 2012 a1286 logic board in my 2010 mbp.(it fits)

Okay so I just did a logic board replacement.

Replaced a1286 logic board but wont boot into os