I have a board that has a component missing but the 820-00928 boardview doesn't have this component. I know it's not a capacitor because both sides are not GND. The board has no sound only boot chime. I already changed MacOS version with full clean install with USB flash. Replaced U6200 and U6300 but still the same. I cleared EFI firmware with Intel FIT but problem persists. All power rails and signal are good. Resistance values of all resistor involved in the circuit are correct. Diode mode shows no discrepancy comparing to OpenBoardView Data. At output or input devices nothing shows. At System Report audio is blank. SMC and PRAM reset has no effect. No signs of corrosion. May be a inner PCH block issue?
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