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Computer Setup—Power
NOTE:
Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-4
Computer Setup—Power
Option
OS Power Management
Hardware Power
Management
Thermal
62
Chapter 5 Computer Setup (F10) Utility
Description
●
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.
SATA Power Management – Enables or disables SATA bus and/or device power management. Default is
enabled.
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. Options are Disabled, LOs, L1, LOs
and L1. Default is ASPM Disabled.
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.
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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