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Table 7-3
Computer Setup—Security (continued)
Smart Cover
Computer Setup—Power
NOTE:
Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 7-4
Computer Setup—Power
Option
OS Power Management
Hardware Power
Management
66
Chapter 7 Computer Setup (F10) Utility
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. Default is disabled,
except for Windows 8 systems which have this setting enabled. Secure Boot enabled also sets
Legacy Support to disabled.
●
Key Management—This option lets you manage the custom key settings.
◦
Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded custom
boot keys. Default is Don't Clear.
◦
Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify the
contents of the secure boot signature databases and the platform key (PK) that verifies
kernels during system start up, allowing you to use alternative operating systems. Selecting
HP Keys causes the computer boot using the preloaded HP-specific boot keys. Default is HP
Keys.
●
Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f keys
to access items before the operating system loads. Default is enabled.
NOTE:
If Windows 8 detects a serious error, it will interrupt the boot process automatically and
display advanced boot options.
From Windows 8, you can press
device or troubleshoot your computer.
Allows you to:
●
Set the Cover Removal Sensor to Disable/Notify User/Setup Password.
NOTE:
Notify User alerts the user that the sensor has detected that the cover has been removed. Setup
Password requires that the setup password be entered to boot the computer if the sensor detects that
the cover has been removed.
Description
●
Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.
●
Unique Sleep State Blink Rates—Enable/Disable. This feature is designed to provide a visual
indication of what sleep state the system is in. Each sleep state has a unique blink pattern. Default
is disabled.
◦
S0 (On) = Solid green LED.
◦
S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (green LED)
— repeated cycles of 3 blinks and a pause.
◦
S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (green
LED) — repeated cycles of 4 blinks and a pause.
◦
S5 (Soft Off) = LED is off.
NOTE:
If this feature is disabled, S4 and S5 both have the LED off. S1 (no longer supported) and S3
use 1 blink per second.
PCI Express Power Management – Sets Active State Power Management (ASPM) of the bus. ASPM lets you
set lower power modes that activate when the bus is not being used. Default is enabled.
Shift
and select Restart to access the screen that lets you boot to a
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