Product Data Sheet / Brochure

Technical Reference
49
NOTE The network can be selected as a boot device. This selection allows booting from the
onboard LAN or a network add-in card with a remote boot ROM installed. Pressing the <F12> key
during POST automatically forces booting from the LAN. To use this key during POST, the User
Access Level in the BIOS Setup program’s Security menu must be set to Full.
5.3.1 Boot Device Selection During Post
Pressing the <F10> key during POST causes a boot device menu to be displayed. The menu
displays the list of available boot devices.
5.3.2 Power Button Menu
As an alternative to Configuration Mode or normal POST hotkeys, the user can use the power
button to access a menu with BIOS and boot options. The Power Button Menu is accessible via
the following sequence:
1. System is in S4/S5 (not G3)
2. User pushes the power button and holds it down for 3 seconds
3. The Front Panel Power Button LED will be on for the first 3 seconds. After 3 seconds, the LED
will begin to blink in the following pattern: 0.25 seconds off, 0.25 seconds on, 0.25 seconds
off to signal the user to release the power button
4. User releases the power button before the 4-second shutdown override
If this boot path is taken, the BIOS will use default settings, ignoring settings in VPD where
possible. At the point where Setup Entry/Boot would be in the normal boot path, the BIOS
will display the following prompt and wait for a keystroke:
If an unrecognized key is hit, then the BIOS will do nothing and wait for another keystroke. If
one of the listed hotkeys is hit, the BIOS will follow the indicated boot path. Password
requirements must still be honored.
Table 22. Power Button Menu Options
Keystroke
Option
Description
[ESC]
Normal Boot
[F2]
BIOS Setup Menu
[F3]
Disable Fast Boot
Note: Will only be displayed if at least one Fast Boot optimization is
enabled.
If Disable Fast Boot is selected, the BIOS will disable all Fast Boot
optimizations and reset the system.
[F4]
BIOS Recovery
The BIOS will search for a matching .CAP file from the \EFI\Intel folder in
the supported media with the supported file system. If a matching
recovery capsule is found, the BIOS will display the following:
BIOS will Recover to <BIOSID> in 20 seconds.
[ESC] Cancel Recovery
Recovery will proceed if not cancelled via the ESC key within 20 seconds.
The BIOS shall display the recovery progress. If a BIOS .CAP file was not
detected (or the BIOS Recovery was cancelled) then the BIOS will reset
the system and continue normally to POST.
[F5]
Restore BIOS Settings
The BIOS will restore 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.