Acpi Configuration - ASROCK B550M-C R2.0 User Manual

4.4.4 ACPI Configuration

Suspend to RAM
It is recommended to select auto for ACPI S3 power saving.
Deep Sleep
Configure deep sleep mode for power saving when the computer is shut down.
PS/2 Keyboard S4/S5 Wakeup Support
Allow the system to be waked up by a PS/2 Keyboard in S4/S5.
USB Keyboard/Mouse Power On
Allow the system to be waked up by an USB Keyboard/Mouse device.
PCIE Devices Power On
Allow the system to be waked up by a PCIE device and enable wake on LAN.
RTC Alarm Power On
Allow the system to be waked up by the real time clock alarm. Set it to By OS to let
it be handled by your operating system.
USB Power Delivery in Soft Off State (S5)
If this option is enabled, the USB port will provide power to your devices even
when the system is in Power State S5.
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