HP Z4 G4 Maintenance And Service Manual page 44

Table 5-3 Computer Setup—Advanced (for advanced users) (continued)
Option
Mini OROM Display Policy
Power Management
Options
Power Management
Options (continued)
Remote Management
Options
36 Chapter 5 Computer Setup (F10) Utility
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This policy controls whether optional ROM text appears in a small window on the splash screen until a key
is pressed.
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, default is enabled)
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.
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.
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.
NOTE: To access more Intel AMT options, it is suggested to do so through Management Engine BIOS
Extension (MEBX), by pressing the
USB Key Provisioning Support (enable/disable) Default is disabled.
F6 key during boot up.