820-3437-b Kernel Panics

Sr. Robot

Member
Hi, got a 820-3437-b that kernel panics on boot, sometimes i can get to the login screen, but kernel panics just after.
Things ive tried:

Changing thermal paste = Still Crashes
Botting from linux USB = The mac wont crash
Installing another OS = Some USB's run but cant finish installing
SMC bypass = Crashes
Disconnecting keyboard/TP = The mac wont crash
Swapped motherboards with a fully working Air = Still crashes

Attached is a picture i managed to take of the error.
 

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2informaticos

Administrator
Staff member
Can you boot (preinstalled) USB macOS?
Crashes w/ and w/o battery connected?

Run EFI ASD and check if any error pops up.

Just in case, try full known good (clean ME) BIOS.
 

Sr. Robot

Member
Crashes with and w/o batt connected

EFI ASD says there may be an issue with fan and memory module (errors PPM002 and PPF004)

Reballed Memory modules but same issue.

Do you have clean ME BIOS? Thanks
 

2informaticos

Administrator
Staff member
Test with known good trackpad board/flex; similar for LIO board/flex.
Also try disconnecting webcam.

I recommend to use known good battery too.
 
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