HP Desktop Pro A G2 Maintenance and Service Guide - Page 86

Computer Setup—Boot Options, Computer, menu continued

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Table 6-3 Computer Setup-Configuration menu (continued) Option Heading UEFI HII Configuration Configure UEFI HII (Human Interface Infrastructure) devices. Runtime Power Management Allows certain operating systems to reduce processor voltage and frequency when the current software load does not require the full capabilities of the processor. Idle Power Savings Allows certain operating systems to decrease the processors power consumption when the processor is idle. SATA Power Management Enables or disables SATA bus and/or device power management. Computer Setup-Boot Options NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration. Table 6-4 Computer Setup-Boot Options menu Option Heading POST Hotkey Delay (sec) Setting to a non-zero value adds a delay during POST. This may be necessary for certain add-in peripherals that respond slowly or violate specifications. USB Boot Enable or disable booting from a USB port. Network Boot Enable or disable booting from a network. Network service boot allows boot to the network using F12 or boot order. Network Boot Protocol Select network boot protocol. Options include: ● IPv4 ● IPv6 ● IPv4+IPv6 When IPv4+IPv6 is selected, BIOS uses IPv4 first. Legacy Support Turn off all legacy support on the computer, including booting to DOS, running legacy graphics cards, booting to legacy devices, and so on. When Legacy Support is enable, BIOS loads the Compatibility Support Module (CSM) to support legacy operating systems such as older versions of Windows, or DOS. When Legacy Support is disabled, BIOS boots in UEFI mode without CSM to support newer operating systems. The computer may be unable to boot into an operating system if this setting is changed. Secure Boot Make sure an operating system is legitimate before booting to it, making Windows resistant to malicious modification from preboot to full OS booting, preventing firmware attacks. UEFI and Windows Secure Boot only allow code signed by pre-approved digital certificates to run during the firmware and OS boot process. Platform Key (read only) Displays Platform Key status: Enrolled, Enrolled-MSFT, Not Enrolled. Pending Action (read only) Displays Pending Action: Load HP Factory Default Keys in Next boot, Load MSFT Debug Keys In Next Boot, None. Clear All Secure Boot Keys Clears all secure boot keys and certificates from secure boot databases. This option disables secure boot. Load HP Factory Default Restores the default shipping keys and certificates to secure boot databases. All custom set keys and Keys certificates are erased. UEFI Boot Order Specify the order in which UEFI boot sources (such as a internal hard drive, USB hard drive, USB optical drive, or internal optical drive) are checked for a bootable operating system image. 78 Chapter 6 Computer Setup (F10) Utility

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Table 6-3
Computer
Setup–Configuration
menu (continued)
Option
Heading
UEFI HII
Configuration
Configure
UEFI HII (Human Interface Infrastructure) devices.
Runtime Power
Management
Allows certain operating systems to reduce processor voltage and frequency when the current software
load does not require the full capabilities of the processor.
Idle Power Savings
Allows certain operating systems to decrease the processors power consumption when the processor is
idle.
SATA Power Management
Enables or disables SATA bus and/or device power management.
Computer Setup—Boot Options
NOTE:
Support for
specific
Computer Setup options may vary depending on the hardware
configuration.
Table 6-4
Computer Setup–Boot Options menu
Option
Heading
POST Hotkey Delay (sec)
Setting to a non-zero value adds a delay during POST. This may be necessary for certain add-in
peripherals that respond slowly or violate
specifications.
USB Boot
Enable or disable booting from a USB port.
Network Boot
Enable or disable booting from a network. Network service boot allows boot to the network using F12 or
boot order.
Network Boot Protocol
Select network boot protocol. Options include:
●
IPv4
●
IPv6
●
IPv4+IPv6
When IPv4+IPv6 is selected, BIOS uses IPv4
first.
Legacy Support
Turn
off
all legacy support on the computer, including booting to DOS, running legacy graphics cards,
booting to legacy devices, and so on.
When Legacy Support is enable, BIOS loads the Compatibility Support Module (CSM) to support legacy
operating systems such as older versions of Windows, or DOS. When Legacy Support is disabled, BIOS
boots in UEFI mode without CSM to support newer operating systems. The computer may be unable to
boot into an operating system if this setting is changed.
Secure Boot
Make sure an operating system is legitimate before booting to it, making Windows resistant to malicious
modification
from preboot to full OS booting, preventing
firmware
attacks. UEFI and Windows Secure Boot
only allow code signed by pre-approved digital
certificates
to run during the
firmware
and OS boot
process.
Platform Key
(read only) Displays Platform Key status: Enrolled, Enrolled-MSFT, Not Enrolled.
Pending Action
(read only) Displays Pending Action: Load HP Factory Default Keys in Next boot, Load MSFT Debug Keys In
Next Boot, None.
Clear All Secure Boot
Keys
Clears all secure boot keys and
certificates
from secure boot databases. This option disables secure boot.
Load HP Factory Default
Keys
Restores the default shipping keys and
certificates
to secure boot databases. All custom set keys and
certificates
are erased.
UEFI Boot Order
Specify the order in which UEFI boot sources (such as a internal hard drive, USB hard drive, USB optical
drive, or internal optical drive) are checked for a bootable operating system image.
78
Chapter 6
Computer Setup (F10) Utility