HP XW3400 manual 5Computer Setup-Power

Computer Setup—Power

NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.

Table 2-5Computer Setup—Power

Option	Description
OS Power	● Runtime Power Management— Enable/Disable. Allows certain operating systems to reduce
Management	processor voltage and frequency when the current software load does not require the full
	capabilities of the processor.
	● Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
	processors power consumption when the processor is idle.
	● ACPI S3 Hard Disk Reset—Enabling this causes the BIOS to ensure hard disks are ready to accept
	commands after resuming from S3 before returning control to the operating system.
	● ACPI S3 PS2 Mouse Wakeup—Enables or disables waking from S3 due to PS2 mouse activity.
	● USB Wake on Device Insertion (some models)—Allows system to wake from Standby on USB
	device insertion.
	● Unique Sleep Blink Rates—This feature is designed to give the user a visual indication of the sleep
	state the system is in. Each sleep state has a unique blink pattern:
	◦	S0 = Solid green LED.
	◦	S3 = 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (green LED), i.e.,
		repeated cycles of 3 blinks and a pause.
	◦	S4 = 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (green LED), i.e.,
		repeated cycles of 4 blinks and a pause.
	◦	S5 = LED is off.
	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	SATA power management enables or disables SATA bus and/or device power management.
Management
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.

ENWW Computer Setup (F10) utilities 11