MacBook A1466 820-165-A No power Missing PM_SLP_S4_L

[AlexVG]

Re: MacBook A1466 820-165-A No power Missing PM_SLP_S4_L

So, I reworked processor.
But I am not lucky.
When I was removing the processor, I heard a few pops under it.
As I understand, the remains of the juice exploded under the processor.
But when I returned the processor to its place, I saw the absence of several 3.3 Volt connections on the back of the board.
Apparently, this was the destruction of the layers inside the board.
If I am pressing on this place, the connections are restoring.
I haven't seen this yet.
I did not violate the thermal mode for removing the processor. For me, this effect is a mystery.
I removed another processor from the same board using the same thermal profile - everything was perfect.
It appears that this board is no longer recoverable.

I have a question: can I install this processor from this motherboard (820-00165-A) to later version (820-3437-B).
I assume that the processor is good conditions and I have a motherboard with a dead processor.
Thank you.

[reformatt]

Re: MacBook A1466 820-165-A No power Missing PM_SLP_S4_L

Watch some of DosDude's Youtube videos on MAC CPU transplants. He says that the Intel U processors warp when removed, and he uses larger balls to compensate (0.45mm).

The 820-3437 is the older board used in 2013~2014 Macbook Air's, and the processor is one generation back. 820-00165 was used in 2015~2017 Airs. The 165 boards are more attractive for resale as they run Monterey natively. 3437 will only run Big Sur.

[AlexVG]

Re: MacBook A1466 820-165-A No power Missing PM_SLP_S4_L

Thank you for answers.
Of course I have access to boardview and schematic.

So I guess I finished my investigations:
This photo shows that DDR was replaced (yellow field)
I suppose that "a professional repair technician" violated the thermal regime, and the area marked in red was inflated. A bubble formed there. This area has vertical movement, that I didn't notice before.
I had been trying to restore connection with the wire, but it is unless.

I used 0.4 balls, I hope it's enough to compensate bending.

Yes I agree with you, This processor would be better use on the same models (not lower).

Thank you to everyone who replied. The information was very helpful.

I suggest this topic may be closed.