No-Clean
Member
Board was worked elsewhere, came in not working, looks like SMC was replaced or reflowed and had some corrosion around R8020, I found PP3V3_SUS had a very low impedence, replaced C1204 and all good there, U1950 also had some corrosion I replaced it, also replaced U1900 as it had some corrosion.
Now board starts up, fan spins for about 10-12 seconds, stops then starts up again and most times it stays on fine, some times after the initial fan spin it just hangs, when that happens I found that checking voltage on SMC_RESET_L makes the computer start up, but not always works.
I don't recall this board having that 10 second initial fan spin.
Now board starts up, fan spins for about 10-12 seconds, stops then starts up again and most times it stays on fine, some times after the initial fan spin it just hangs, when that happens I found that checking voltage on SMC_RESET_L makes the computer start up, but not always works.
I don't recall this board having that 10 second initial fan spin.