User Manual

Technical Reference
45
Recovery proceeds if not cancelled via the ESC key within 20 seconds. The
BIOS displays the recovery progress. If a BIOS .CAP file was not detected
(or the BIOS Recovery was cancelled) then the BIOS resets the system and
continues normally to POST.
[F5]
Restore BIOS Settings
The BIOS restores the current setup settings and the current defaults to
the build time defaults in the case of a boot issue caused by setup variable
changes.
4.4 Hard Disk Drive Password Security Feature
The Hard Disk Drive Password Security feature blocks ready and write access to the hard disk drive
until the correct password is given. Hard disk drive passwords are set in BIOS Setup and are
prompted for BIOS POST. For convenient support for resuming from S3, the system BIOS
automatically unlocks drives on resume from S3. Valid password characters are A-Z, a-z, and 0-9.
Passwords may be up to 32 characters in length.
The User hard disk drive password, when set, is required on each power cycle until the Master Key
or User hard disk drive password is submitted.
The Master Key hard disk drive password, when set, will not lock the drive. The Master Key hard disk
drive password exists as an unlock override if the User hard disk drive password is forgotten. Only
the User hard disk drive password, when set, causes a hard disk to be locked on a system power
cycle. show the effects of setting the hard disk drive passwords.
Table 27. Master Key and User Hard Disk Drive Password Functions
Password Set
Password During Boot
Neither
None
Master only
None
User only
User only
Master and User Set
User
During every POST, if a User hard disk drive password is set, POST execution pauses with the
following prompt to force the User to enter the Master Key or the User hard disk drive password:
“Enter Hard Disk Drive Password:”
Upon successful entry of the Master Key or User hard disk drive password, the system proceeds with
normal POST.
If the hard disk drive password is not correctly entered, the system goes back to the above prompt.
The User has three attempts to correctly enter the hard disk drive password. After the third
unsuccessful attempt, the system halts with the following message:
“Hard Disk Drive Password Entry Error”
A manual power cycle is required to resume system operation.
NOTE As implemented on the ASUS NUC13AN / NUC13LC board, the hard disk drive
password security feature is only supported on the SATA Port 0 (M.2) or the SATA port 1 (onboard
SATA connector).