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Good morning, this mac has suffered oxidation in the region of C1212. It came from another service where they reflowed the SMC, replaced it, but it won't turn on.
Good morning, I have a mac that came with fan spin, but it won't start.
PPVCORE_S0_CPU : stucked on 1.1V
I've tried another BIOS, but without success. I've tried other RAM memories too and found small oxidations on the contacts of the memory slots, I cleaned them but nothing changed.
"CPU coils have 001-003 ohm as normal for i7-i5 Ivy Bridge CPU"
Noted, thank you!
Using the voltage injection method, I found C6213 shorted, replaced it and the short was resolved. 5V and 3V voltages are now stable.
The board now rotates the fan, but has no logical activity.
Inverse diode values on big coils:
L7260: 0V (shorted to ground in continuity mode)
L7550: 0V (shorted to ground in continuity mode)
L7510: 0V (shorted to ground in continuity mode)
L7520: 0V (shorted to ground in continuity mode)
L7100: 0V (shorted to ground in...