Biostar B350GT3 Bios User Manual page 37

Attempt Secure Boot
Secure Boot activated when Platform Key(PK) is enrolled, System mode is User/Deployed, and
CSM function is disabled.
Options: Disabled (Default) / Enabled
Key Management
Install Factory Default keys
Force System to User Mode - install all Factory Default Keys. Change takes effect after reboot.
Platform Key (PK)
Set new – Allows you set new PK file.
Key Exchange Keys
Set new Key – Allows you set new KEK file.
Append Key – Allows you append Var to KEK.
Authorized Signatures
Set new Key – Allows you set new DB file.
Append Key – Allows you append Var to DB.
Forbidden Signatures
Set new Key – Allows you set new DBX file.
Append Key – Allows you append Var to DBX.
Authorized Timestamps
Set new Key – Allows you set new DBT file.
Append Key – Allows you append Var to DBT.
OsRecovery Signatures
Set new Key – Allows you set new DBT file.
Append Key – Allows you append Var to DBT.
B350GT3 & X370GT3
5. Security Menu | 37