Eurocom L390T Uno - Manual (Page 71)

BIOS Utilities
Advanced Menu 5 - 11
5
Power On Boot Beep (Advanced Menu)
Use this menu to enable/disable the single beep sound at the end of the POST. This
item is “Disabled” by default.
Fan Control (Advanced Menu)
This menu item allows you to set the fan cooling behavior under light system activity
(if you choose Automatic the system will adjust the fan cooling as appropriate for
the system activity).