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8 Replaced SMC - Slow System - No Audio
2017 MBA A1466 (820-00165)
We thought the issue was a bad SMC, We replaced the SMC, Connected the charger, Brief fan spin, no chime or boot. No water damage, clean board Technician cannot find any shorts. The issue remains even with no KB connected. We have reset & programmed the SMC with SMC tools / Unable to reset PRAM etc...... Only with SHIFT+OPT+Power I got it to boot into the system, fan at normal speeds, power button does shut it down....But the system Prefs wont load and it is dead slow. I have used 2 new keyboards shells and 2 good TP cables yet still the same, and with a fresh Monterey installed drive. Diagnostics no issues found. The KB & TP are functioning fine (Except to power up). @oldturkey03 What can be our issue here?
System Firmware 489.0.0.0.0
SMC Version 2.27f2
No Audio devices detected in 2 I/O boards, which maybe our issue? Although it did chime once before.... very odd.
Esta é uma boa pergunta?
