HP Z238 Maintenance And Service Manual page 29

Table 2-3 Computer Setup—Advanced (for advanced users) (continued)
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Restrict USB Devices
Specify the following categories of USB devices to enable:
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When some devices are restricted, the system will disable USB ports that do not meet the allowed
criteria. This feature is usually combined with similar policies within the operating system since USB
devices can be moved to different ports. The ports disabled by the BIOS will remain disabled until the
system is restarted.
Option ROM Launch These policies control whether Legacy Option ROMs or UEFI drivers are loaded. Default is 'All legacy' for
Policy Windows 7 and non-Windows configurations. Default is 'All UEFI' for Windows 10.
Configure Option ROM Launch Policy
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Slot settings Lets you enable or disable any PCIe slot.
Power Management Runtime Power Management (enable/disable)
Options
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.
S5 Maximum Power Savings (enable/disable)
Enabling this feature reduces the power of the system as much as possible in the S5 state. Power is
removed from the wake up circuitry, the expansion slots, and any management features while in S5.
Default is disabled.
SATA Power Management (enable/disable)
Enables or disables SATA bus and/or device power management. 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:
S0 (On) = Solid white LED.
SATA3
Front USB ports
If not selected, individual ports cannot be enabled.
Rear USB ports
If not selected, individual ports cannot be enabled.
USB charging port function
Media card reader
Allow all USB devices
Allow only keyboard and mouse
Allow all but storage devices and hubs.
All legacy
All UEFI
All UEFI except video
A normal shutdown goes to the S4 state for Windows 10.
Computer Setup (F10) utilities 21