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Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-5 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.
◦
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.
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.
18 Chapter 3 Computer Setup (F10) Utility