Re: A1466 820-3437-B 10 second fan off on

No good, nothing around U8005 took it off and checked.
Flashed a clean BIOS to the chip, resistors are fine.

No display or chime, just the 10 second fan spin, off then back on and stays spinning.

For now this will have to be a fail as it's been a time sink for me.

Hello, I have a MacBook board that I am stuck on.

This is a 820-3437-B board which I know the standard turn on procedure is 3 fan spins before powering up and staying on, however this board the fan turns on for about 10 seconds, turns off, then turns on and stays on until powered off.

This board did appear to have some liquid near U1900 (clock chip) which I have replaced as well as the crystal just to make sure.

I get all voltage rails, vCore stable at about 1.7v, very little heat coming from the CPU/PCH (mostly PCH), with a USB with a bootable system...

Re: New Members - please post your introductions here

Hey all, been using this site and repairing devices for a few years now, BadCaps has been a great place to find information on, but I think now is the time I need to reach out and ask for advice on some of my more difficult repairs, as well as to maybe help others.
Most of my repairs are game consoles, phones and laptops.