Power On Voltages (Xbox One X)

if you have all the standby voltages, the next steps is to press the power button, which sends the power switch enable pin low on the southbridge (called the kic, specifically the system management controller part of the chip called smc), which in turn enables a few more regulators to power up the rest of the system, and send the white light on in short the southbridge listens for the power enable signal going low from a button press, and enables many output regulators for the gfx, cpu cores, ethernet, hdd, odd and more i will fill out more info for these stages when i get time but here is an overview vreg pwrgpa en u64 mp2949a pmic (memory) vreg pwrgpb en u27 rt8071a vreg (for v socphy of southbridge kic) u57 mp2853 pmic (gfx/cpu cores of u1 anubis) vreg pwrgpc en u68 ap2127kadj vreg (for u1 rail v fuse of anubis cpu) hdmi v 5p0 en u21 hdmi ic enable m2 pwr en through u34 op amp to enable q3 to power m2 slot u28 rtl8111hm ethernet controller led vreg 1p1 active en u42 cat6243dc vreg (to enable v sb1p1 power rail of southbridge kic) odd pwr en turns on fets u44 which turns on q2 for odd 12v enables u34 op amp to turn on fet u45 odd 5v hdd pwr en enables u34 op amp to turn on fet u56 hdd 5v vreg 3p3 en enables u16 ap7365 vreg and fet u25 for v 3p3 for southbridge kic vreg v5p0 en enables u51 mp8759 vreg for v 5p0 which goes to many, many places on the board