HP ProLiant DL380e - Power Button & Related Controls (G7 Servers); Power Button (G7 Servers)

RBSU menu (HP ProLiant G7 servers or server blades) 56
Power Button (G7 servers)
Disabling the Power Button feature causes the momentary power button to stop functioning under any OS.
The Power Button feature does not override the 4-second hold-down of the server power button.