P330 -

Use the color-coded rear ports for monitors (DisplayPort/HDMI) and peripherals.

On some models, pressing Alt+P on a keyboard connected to the specific Gen 1 USB port can turn the computer on. Maintenance & Security

Place on a stable, well-ventilated surface near a grounded outlet.

Press the front power button; if unresponsive, hold for four seconds to force a shutdown.

Regularly clean vents and avoid operating the unit inside enclosed furniture to prevent overheating.

Access the UEFI BIOS menu to change startup sequences or enable RAID configurations. Nikon Coolpix P330 P330 Hardware Maintenance Manual - Lenovo

Read the Hardware Maintenance Manual before replacing components like RAM or M.2 SSDs.