Owners Manual

Option Description
Clears all the contents of the TPM. The TPM Clear option is set to No by default.
Intel TXT Enables or disables the Intel Trusted Execution Technology (TXT) option. To enable the Intel TXT option,
virtualization technology and TPM Security must be enabled with Pre-boot measurements. This option is
set to Off by default.
Power Button Enables or disables the power button on the front of the system. This option is set to Enabled by default.
NMI Button Enables or disables the NMI button on the front of the system. This option is set to Disabled by default.
AC Power
Recovery
Sets how the system behaves after AC power is restored to the system. This option is set to Last by
default.
AC Power
Recovery Delay
Sets the time delay for the system to power up after AC power is restored to the system. This option is
set to Immediate by default.
User Defined
Delay (60s to
240s)
Sets the User Defined Delay option when the User Defined option for AC Power Recovery Delay is
selected.
UEFI Variable
Access
Provides varying degrees of securing UEFI variables. When set to Standard (the default), UEFI variables
are accessible in the operating system per the UEFI specification. When set to Controlled, selected UEFI
variables are protected in the environment and new UEFI boot entries are forced to be at the end of the
current boot order.
Secure Boot Enables Secure Boot, where the BIOS authenticates each pre-boot image by using the certificates in the
Secure Boot Policy. Secure Boot is disabled by default.
Secure Boot
Policy
When Secure Boot policy is set to Standard, the BIOS uses the system manufacturer’s key and
certificates to authenticate pre-boot images. When Secure Boot policy is set to Custom, the BIOS uses
the user-defined key and certificates. Secure Boot policy is set to Standard by default.
Secure Boot
Policy Summary
Specifies the list of certificates and hashes that secure boot uses to authenticate images.
Secure Boot Custom Policy Settings
Secure Boot Custom Policy Settings is displayed only when Secure Boot Policy is set to Custom.
Viewing Secure Boot Custom Policy Settings
To view the Secure Boot Custom Policy Settings screen, perform the following steps:
Steps
1. Turn on, or restart your system.
2. Press F2 immediately after you see the following message:
F2 = System Setup
NOTE:
If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
3. On the System Setup Main Menu screen, click System BIOS.
4. On the System BIOS screen, click System Security.
5. On the System Security screen, click Secure Boot Custom Policy Settings.
Secure Boot Custom Policy Settings details
The Secure Boot Custom Policy Settings screen details are explained as follows:
Option
Description
Platform Key Imports, exports, deletes, or restores the platform key (PK).
32 Pre-operating system management applications