Acer AR180 F1 - Manual (Page 81)

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Bootup Num-Lock: Selects the Power-on state for Numlock key.
Wait For 'F1' If Error: Forces the system to wait until the key is
pressed if an error occurs.
Interrupt 19 Capture: Interrupt 19 is the software interrupt that
handles the boot disk function. When this item is set to Enabled, the
ROM BIOS of the host adaptors will capture Interrupt 19 at boot and
allow the drives that are attached to these host adaptors to function as
bootable disks. If this item is set to Disabled, the ROM BIOS of the host
adaptors will not capture Interrupt 19, and the drives attached to these
adaptors will not function as bootable devices.
Power Button Function: If set to Instant_Off, the system will power off
immediately when you press the power button. If set to
4_Second_Override, the system will power off when you press the
power button for four seconds or longer.
Restore on AC Power Loss: Use this feature to set the power state after
a power outage. Select Power-Off for the system power to remain off
after a power loss. Select Power-On for the system power to be turned
on after a power loss. Select Last State to allow the system to resume
its last state before a power loss.
Watch Dog Function: If Enabled, the Watch Dog Timer will allow the
system to reboot when it is inactive for more than five minutes.