Chosen Solution
Hello everyone, this is my first time using this as a platform so have mercy. I have a 2011 13” Macbook Pro with Board Number 820 2936- B (On the DC IN Board its “820 2565 - A and “Apple 2009” so i guess that is wrong). I checked PP3V42_G3H and that is present, PPVCORE is 0.9 Volts. What happens is when i plug in the magsafe charger the light turns green (so one wire circuit must work somehow) but no video even on external Monitor and the fan starts to spin slowly until on 100%. What can i do?
Sadly, this sounds like a failed CPU and/or PCH. This series uses a direct memory architecture from the CPU to the RAM slots and it uses the PCH to gain access to the other services of the system like the audio logic for the speaker. Time for a new logic board ;-{
That DC-in part was used for several years. So it being marked 2009 is just fine.
