Dell R720XD owner manual Error Code, see Getting Help

Error Code	Message Information
	LCD Message	Drive <number> removed from disk drive bay <bay>. Check drive.
	Details	The controller detected that the drive was removed.
	Action	Verify drive installation. Re-seat the failed drive. If the issue persists,
		see Getting Help.
PST0128	Message	No memory is detected.
	LCD Message	No memory is detected. Inspect memory devices.
	Details	System BIOS was unable to detect memory in the system.
	Action	Re-seat the memory modules. If the issue persists, see Getting Help.
PST0129	Message	Memory is detected, but is not configurable.
	LCD Message	Memory is detected, but is not configurable. Check memory devices.
	Details	System BIOS detected memory, but was unable to configure the
		memory for system operation.
	Action	Compare system memory installation to supported system memory
		configurations.
PSU0001	Message	Power supply <number> failed.
	LCD Message	PSU <number> failed. Check PSU.
	Action	Remove and reinstall the power supply. If the issue persists, see
		Getting Help.
PSU0002	Message	A predictive failure detected on power supply <number>.
	LCD Message	Predictive failure on PSU <number>. Check PSU.
	Details	System performance and power redundancy may be degraded or
		lost.
	Action	Remove and reinstall the power supply at the next service window. If
		the issue persists, see Getting Help.
PSU0003	Message	The power input for power supply <number> is lost.
	LCD Message	Power input for PSU <number> is lost. Check PSU cables.
	Details	The power supply is installed correctly but an input source is not
		connected or is not functional.
	Action	Verify the input source is attached to the power supply. Verify the
		input power is within the operating requirements for the power
		supply.

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