Computer Setup-Power - HP t820 Maintenance & Service Manual

Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table B-5 Computer Setup—Power
Option
OS Power
Management
Hardware Power
Management
Thermal
Description
Idle Power Savings—Extended/Auto/Normal. Allows certain operating systems to decrease
●
the processors power consumption when the processor is idle. Default is extended.
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.
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 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.
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 x16 Slot 1 – 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.
PCI Express x1 Slot 1 – 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.
Network Controller – Sets 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.
USB 3.0 Controller – Sets 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.
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.
Computer Setup (F10) Utilities
65