Computer Setup—Power
NOTE:
Support for specific Computer Setup options may vary depending on the hardware
configuration.
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 systems with Fast Boot support, a normal shutdown goes to the S4
state, not the S5 state.
◦
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.
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.
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.
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.
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Chapter 7 Computer Setup (F10) Utility
