AAEON AEC-6636 - Manual (Page 41)

E m b e d d e d C o n t r o l l e r A E C - 6 6 3 6
Select the highest ACPI sleep state the system will enter when the
SUSPEND button is pressed.
S5 RTC Wake Settings
Options summary:
Wake system with Fixed Time Enable
Disable Optimal Default,
Failsafe Default
Wake up hour 0
Wake up minute 0
Wake up second 0
Chapter 3 AMI BIOS Setup 3-7