MSI MS-98E3 Manual page 45

Power
▶
Restore AC Power Loss
This setting specifies whether your system will reboot after a power failure
or interrupt occurs. Available settings are:
[Power Off]
[Power On]
[Last State]
▶
Deep S5
The setting enables/disables the Deep S5 power saving mode. Deep S5 is
almost the same as G3 Mechanical Off, except that the PSU still supplies
power, at a minimum, to the power button to allow return to S0. A full reboot
is required. No previous content is retained. Other components may remain
powered so the computer can "wake" on input from the keyboard, clock,
modem, LAN, or USB device.
Leaves the computer in the power off state.
Leaves the computer in the power on state.
Restores the system to the previous status before
power failure or interrupt occurred.
MS-98E3
3-17