Using the System Setup Program 55
TPM Clear
(No default)
NOTICE: Clearing the TPM will cause loss of all encryption
keys in the TPM. This will prevent booting to the operating
system and result in loss of data if the encryption keys
cannot be restored. Be sure to back up the TPM keys prior to
enabling this option.
When set to Yes, all the contents of the TPM are cleared.
NOTE: This field is read-only when TPM Security is set to Off.
Power Button
(Enabled default)
Turns system’s power off and on.
• If you turn off the system using the power button and the
system is running an ACPI-compliant operating system, the
system can perform an orderly shutdown before power is
turned off.
• If the system is not running an ACPI-compliant operating
system, power is turned off immediately after the power
button is pressed.
The button is enabled in the System Setup program. When
disabled, the button can only turn on system power.
NOTE: You can still turn on the system by using the power button,
even if the Power Button option is set to Disabled.
NMI Button
(Disabled default)
NOTICE: Use the NMI button only if directed to do so by
qualified support personnel or by the operating system's
documentation. Pressing this button halts the operating
system and displays a diagnostic screen.
Sets the NMI feature On or Off.
AC Power Recovery
(Last default)
Determines how the system reacts when power is restored to the
system. If system is set to Last, the system returns to the last
power state. On turns on the system after power is restored.
When set to Off, the system remains off after power is restored.
Table 2-7. System Security Screen Options (continued)
Option Description
Book.book Page 55 Monday, September 14, 2009 12:57 PM