PowerOff Win2K

I’m running win2k Pro. & Srv. When I shut down the power it does not switch off. I already tried the following:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon\PowerdownAfterShutdown from 0 to 1 but this did not help.

I’ll be more than happy to learn the answer!

Manuel