Acer Altos G510 series - Manual (Page 104)

4 BIOS setup 94
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.
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