820-2641 with slowness when starting the machine.

[iClub]

This iMac, suffered contact with liquid in the region of the GPU connector and memories, where I cleaned and tinned some points. The machine takes a long time to raise the macOS.

 

[2informaticos]

Could be ME region issue.
But should disconnect internal HDD first and try your USB test macOS.

 

[iClub]

I already noticed this test of the disconnected HD and go up through external macOS, I will clean the BIOS region ME ok?

 

[2informaticos]

If still slow through USB, then clean ME region and test again.

 

[iClub]

friend you can clean up ME region of this BIOS, I'm not getting it.
https://drive.google.com/file/d/1qvZkIB0eDwvI7pIB5GLF_9ucACNw05yF/view?usp=sharing

 

[iClub]

I think I did some shit, after cleaning the ME region, the machine is not showing image, only giving 2 led. I think I inverted the HD cable in the SOURCE.

 

[iClub]

Friend, I turned the backup BIOS back to check if that was the problem, but it doesn't turn on and the cooller spins fast then spins slowly. I don't know what to do

Voltage: PP3V42_G3H 3.43V;
PP12V_G3H 12.06V.

 

[2informaticos]

Here is the BIOS

820-2641 clean ME.bin

drive.google.com

in case you still need it...