Acer Altos G710 - Manual (Page 122)

4 BIOS setup 112
Parameter Description
1st Boot Device Sets the device from which the system will first
attempt to boot up.
2nd Boot Device Sets the device from which the system will attempt to
boot up when the first attempt failed.
3rd Boot Device Sets the device from which the system will attempt to
boot up when the first and second attempts failed.
4th Boot Device Sets the device from which the system will attempt to
boot up when the first, second and third attempts
failed.