Owners Manual

Option Description
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 screen details
Secure Boot Custom Policy Settings is displayed only when the Secure Boot Policy option is set to
Custom.
To view the Secure Boot Custom Policy Settings screen, click System Setup Main Menu → System BIOS
→ System Security → Secure Boot Custom Policy Settings.
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).
Key Exchange Key
Database
Enables you to import, export, delete, or restore entries in the Key Exchange Key
(KEK) Database.
Authorized
Signature
Database
Imports, exports, deletes, or restores entries in the Authorized Signature Database
(db).
Forbidden
Signature
Database
Imports, exports, deletes, or restores entries in the Forbidden Signature Database
(dbx).
35