Dell M820 owner manual VLT0221 Message, VLT0222 Message, VLT0224 Message

Error Code	Message Information
		If multiple voltage exceptions occur consecutively the
		system may power down in fail-safe mode.
	Action	1.	Review system logs for power supply exceptions.
		2.	Re-configure the system to minimum configuration,
			inspect and reinstall system cables.
		3.	If the issue persists, see Getting Help.
VLT0221	Message	The <name> voltage is greater than the upper critical
		threshold.
	LCD Message	The <name> voltage is outside of range.
	Details	System hardware detected an over voltage or under voltage
		condition.
		If multiple voltage exceptions occur consecutively the
		system may power down in fail-safe mode.
	Action	1.	Review system logs for power supply exceptions.
		2.	Re-configure the system to minimum configuration,
			inspect and reinstall system cables.
		3.	If the issue persists, see Getting Help.
VLT0222	Message	The <name> voltage is outside of range.
	LCD Message	The <name> voltage is outside of range.
	Details	System hardware detected an over voltage or under voltage
		condition.
		If multiple voltage exceptions occur consecutively the
		system may power down in fail-safe mode.
	Action	1.	Review system logs for power supply exceptions.
		2.	Re-configure the system to minimum configuration,
			inspect and reinstall system cables.
		3.	If the issue persists, see Getting Help.
VLT0224	Message	The memory module <name> voltage is less than the lower
		warning threshold.
	LCD Message	Memory module <number> <name> voltage is outside of
		range.
	Details	System hardware detected an over voltage or under voltage
		condition.

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