My Logitech wireless keyboard, which is plugged into the PS2 port using the supplied USB-PS2 adapter, will boot up my computer with the F1 key, as I have set the BIOS of the computer to wake on a hotkey on the keyboard.
This will not work the first time the computer is plugged into the wall, however, only subsequent times, in my case. Whether it will work for you, is another thing, and I'm not sure whether it would work with a keyboard plugged into a USB port either 🙂
Confused