Power Init Steps

-1:
 Internal: Power Sequence Setup
 0:
 Internal: BE PLL Setup
 External: Power Supply On, Fan (ABC+) On
 1:
 Internal: SB Setup, RSX Setup, DVE Setup, HDMI Setup, BE Setup, XCG2 Setup, XDR clock Setup, SB EBUS Setup, PCIe Setup
 External: SW_1 on, SW_1_A on
 2:
 External: XDR on
 3:
 External: SB on, Eurus on, USB on, ATA on
 4:
 Internal: ?? Setup
 5:
 Internal: ?? Setup, SB Setup
 External: SW_1_B on, ?? on, SW_5 on, SW_5_A on, SW_5_B on, RSX on
 6:
 Internal: ?? Setup
 7:
 External: SW_7 on, SW_7_A on, SW_8_D on
 8:
 Internal: RSX Setup, Thermal Setup
 External: SW_8 on, SW_8_A on, SW_8_E on, SW_8_B on, SW_8_C on
 9:
 Internal: ?? Setup,
 External: SW_9 on, PCI on, PCIe on, XCG Setup (CELL, RSX, FlexIO), XCG2 Setup (Phase 0)
10:
 Internal: HDMI Setup, DVE Setup, ?? Setup
 External: XCG2 Setup, RSX Setup, BE PLL Setup (Phase 1)
20:
 ??
21:
 External: Check BE Status (Phase 2)
22:
 External: Adjust VRM, Write Config Ring (Phase 2)
23:
 Internal: ?? Setup, RSX Setup
 External: BE Setup
30:
 External: Wait for Calibration Ready (Phase 2)
31:
 External: Wait for Calibration Ready (Phase 2)
32:
 External: Wait for Calibration Ready (Phase 2)
40:
 External: FlexIO Calibration ( Phase 2)
...