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Note: This article is part of the Server Tutorials: "Power Supply" available here .
Note: In a redundant PSU system, the firmware will update both PSUs while the system is off.
Caution: Performing an AC power cycle or cold boot during power supply firmware update, forces the power supply unit to enter an irrecoverable state and will cause managed system not to boot.
Caution: After a successful power supply firmware download, the managed system will turn off for a duration ranging from three to fifteen minutes to continue updating the firmware. It is imperative not to disturb/restart manually the system, wait until the PSU FW update finishes. Once the firmware update is complete, the managed system will reboot automatically.