Lenovo IdeaPad L340 Series User Manual page 12

8. Novo button
9. Power LED
* USB-C is designed with 5V/1.5A power specifications. Ensure that the power specification of the device
connected to this port is within these power limits.
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Lenovo IdeaPad L340 Series User Guide
When the computer is off, press this button to start the System Recovery or the
BIOS setup utility, or to enter the boot menu.
Indicates whether the computer is on, off or on sleep mode.