I have an 820-00163 board that has MagSafe, PPBUS_G3H, 3V42, 3V3_S5, 5V_S5, RTC, 3V3_SUS, S5_PWRGD. No SLP. No pulse on 5V_S4. The board came to me after ultrasonic so not a lot of clues. I see slight signs of damage to a capacitor on 3V3_S0 and PPVIN_S5_HS_COMPUTING_ISNS. Everything seems good as far as shorts. None that I can find. Any suggestions for a next step?