Troubleshooting/BMC Power

On the BMC:

 i2cget -y 12 0x31 0x03   # <-- resets power seqencing error flags
 i2cget -y 12 0x31 0x07   # ATX Power State
   # 0x20   --
   # 0x22   -- ATX PSU Start Request Sent
   # 0x23   -- ATX PSU Signalling Power Good
   # 0x2C   -- Timeout, previous or current operational fault detected
   # 0x2E   -- General Fault Detected in Power Sequencing
   # 0xyy
       ||
       |-------------- System status flags
       --------------- System configuration flags

 i2cget -y 12 0x31 0x18   # Rail fault indicator low bits
   # 0x01   -- ATX PSU power good not asserted in timeframe required

 i2cget -y 12 0x31 0x19   # Rail fault indicator high bits