ASRock B450M-HDV R4.0 User Manual - Page 60

ACPI Configuration, Suspend to RAM, ACPI HPET Table, PS/2 Keyboard S4/S5 Wakeup Support

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Page 60 highlights

4.4.6 ACPI Configuration B450M-HDV R4.0 Suspend to RAM It is recommended to select auto for ACPI S3 power saving. ACPI HPET Table Enable the High Precision Event Timer for better performance and to pass WHQL tests. PS/2 Keyboard S4/S5 Wakeup Support Allow the system to be waked up by a PS/2 Keyboard. 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. 55 English

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B450M-HDV R4.0
55
English
4.4.6
ACPI Configuration
Suspend to RAM
It is recommended to select auto for ACPI S3 power saving.
ACPI HPET Table
Enable the High Precision Event Timer for better performance and to pass WHQL
tests.
PS/2 Keyboard S4/S5 Wakeup Support
Allow the system to be waked up by a PS/2 Keyboard.
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.