Dell R410 owner manual Enables or disables the NMI feature

Option	Description
TPM Activation	When set to Activate, the TPM is enabled to default
(No Change default)	settings. When set to Deactivate, the TPM is disabled.
	The No Change state initiates no action. The operational
	state of the TPM remains unchanged (all user settings for
	the TPM are preserved).
	NOTE: This field is read-only when TPM Security is set
	to Off.
TPM Clear	CAUTION: Clearing the TPM will lose all encryption
(No default)	keys in the TPM. This option prevents booting to the
	operating system and results in data loss if the
	encryption keys cannot be restored. Back up the
	TPM keys prior to enabling this option.
	When set to Yes, all TPM contents are cleared.
	NOTE: This field is read-only when TPM Security is set to
	Off.
Power Button	If Enabled, the power button can turn the system's power
(Enabled default)	off and on. On an ACPI-compliant operating system, the
	system performs an orderly shutdown before power is
	turned off.
	When Disabled, the button can only turn on system
	power.
NMI Button	CAUTION: Clearing the TPM will lose all encryption
(Disabled default)	keys in the TPM. This option prevents booting to the
	operating system and results in data loss if the
	encryption keys cannot be restored. Back up the
	TPM keys prior to enabling this option.
	Enables or disables the NMI feature.
AC Power Recovery	Determines how the system reacts when power is
(Last default)	restored. If set to Last, the system returns to the last
	power state. On turns on the system after power is
	restored. Off allows the system to remain off after power
	is restored.

AC Power Recovery Delay

(Immediate default)

Determines when the system restarts after power is restored. Options are Immediate, Random (between 30 to 240 seconds), or a user-defined value of 30 to 240 seconds.

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Using the System Setup Program and UEFI Boot Manager