HP Z8 G4 Maintenance And Service Manual page 54

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option
Power Management
Options
Remote Management
Options
46 Chapter 5 Computer Setup (F10) Utility
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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.
Extended Idle Power States (enable/disable)
Allows certain operating systems to decrease the processors power consumption when the processor is idle.
Default is enabled.
Hardware Power States (enable/disable)
Enabling this feature controls whether computer or the operating system has final control over power states.
S5 Maximum Power Savings (enable/disable)
Enabling this feature reduces the power of the system to less than 0.5W when the system is in the S4 or S5
state. Power is removed from the expansion slots and one of the on-board network connections. The AMT-
enabled network connection may be used to wake on LAN with this feature enabled. Default is disabled.
SATA Power Management (enable/disable)
Enables or disables SATA bus and/or device power management. Default is enabled.
PCI Express Power Management (enable/disable)
Enabling this option permits the PCI Express links to use Active Power State Management (ASPM) to enter
lower power states while not in use. 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.
NOTE: A normal shutdown goes to the S4 state for Windows 8 or later.
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.
Power On from Keyboard Ports (enable/disable)
When enabled, this feature allows a key press to power on the system when it is off (S5 state). If using a USB
keyboard, it must be plugged into one of the rear ports labeled with the keyboard icon. Default is disabled.
Intel Management Engine (ME) (enable/disable). Default is enabled.
This option allows a user to disable the Intel Management Engine, which disables Intel Active Management
Technology and all underlying Intel ME technologies. This option also disables ME functions that allow for ME
firmware updates. It is suggested to periodically enable this option to update ME firmware, as the ME
firmware may contain platform stability fixes.
Intel Active Management Technology (AMT) (enable/disable). Default is disabled.
This option allows a user to disable the Intel Active Management Technology, which is tied to all ME-
regulated remote management functions. Disabling AMT will still allow for ME firmware updates, which are
recommended for receiving platform stability fixes.
USB Key Provisioning Support (enable/disable) Default is disabled.
USB Redirection Support (enable/disable). Default is enabled.