Table 7-3 Computer Setup—Security (continued)
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 disabled.
NOTE: If Windows 8.1 detects a serious error, it will interrupt the boot process
automatically and display advanced boot options.
From Windows 8.1, you can press Shift and select Restart to access the screen that lets you
boot to a device or troubleshoot your computer.
Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 7-4 Computer Setup—Power
Option Description
OS Power Management
●
Runtime Power Management—Enable/Disable. Allows certain operating systems to reduce
processor voltage and frequency when the current software load does not require the full
capabilities of the processor. Default is enabled.
●
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.
NOTE: For Windows 8.1 systems with Fast Boot support, a normal shutdown goes to the
S4 state.
◦
S0 (On) = Solid white LED.
◦
S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(white 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
(white LED) — repeated cycles of 4 blinks and a pause.
◦
S5 (Soft Off) = LED is off.
Hardware Power
Management
SATA Power Management – Enables or disables SATA bus and/or device power management.
Default is enabled.
S5 Maximum Power Savings – Turns off power to all nonessential hardware when system is off to
meet EUP Lot 6 requirement of less than 0.5 Watt power usage. Default is disabled.
Thermal Fan idle mode—This bar graph controls the minimum permitted fan speed.
NOTE: This setting only changes the minimum fan speed. The fans are still automatically
controlled.
120 Chapter 7 Computer Setup (F10) Utility