MSI G52-74111X2 Manual page 59

Restore on AC Power Loss
This setting specifies whether your system will reboot after a power failure or
interrupt occurs. Available settings are:
[Off]
[On]
[Last State]
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.
BIOS Setup
3-27