Lines Matching full:power
1 # Power Good Faults
5 The power sequencer device provides a chassis power good (pgood) signal. This
8 If the chassis pgood state is false when it should be true, a chassis power good
13 When the power sequencer device is powering on the main voltage rails in order,
14 one of the rails may fail to power on. This is often due to a hardware problem.
16 When a voltage rail fails to power on, the power sequencer device may
18 for the rail to power on. In both cases the chassis pgood signal never changes
26 A voltage rail may suddenly power off or stop providing the expected level of
30 The power sequencer device will detect that the voltage rail has failed. The
32 may also power off several other related voltage rails, depending on how the
37 `phosphor-power-sequencer` detects a pgood fault by monitoring the chassis pgood
43 When a pgood fault is detected, `phosphor-power-sequencer` will perform the
46 - Use information from the power sequencer device to determine the cause of the
56 [Power Loss](power_loss.md).
67 Note that when a pgood error happens **during** a power on attempt, the
68 `phosphor-chassis-state-manager` application handles the power off/power cycle.
70 `phosphor-power-sequencer` application handles the power off/power cycle. This
71 is due to the complex service file relationships that occur during a power on
81 - The power sequencer device type is supported by `phosphor-power-sequencer`.
86 If those requirements are met, `phosphor-power-sequencer` will attempt to
90 - Read a GPIO from the power sequencer device
96 on, but they might not be set during a power on attempt because the power
97 sequencer is waiting indefinitely for the rail to power on.
104 If the voltage rail is from the power supplies, and the `phosphor-power-supply`
105 application found a power supply error, then the power supply error is logged as