Acpi Configuration - ASROCK H81M-HG4 User Manual

H81M-HG4/H81M-DG4/H81M-VG4

4.4.6 ACPI Configuration

Suspend to RAM
It is recommended to select auto for ACPI S3 power saving.
Check Ready Bit
Enable to enter the operating system after S3 only when the hard disk is ready, this
is recommended for better system stability.
ACPI HPET Table
Enable the High Precision Event Timer for better performance and to pass WHQL
tests.
PS/2 Keyboard Power On
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.
Ring-In Power On
Allow the system to be waked up by onboard COM port modem Ring-In signals.
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