You have already found that the answer lies in how the two *different* 
OS's operate. In XP control panel/power options, you can set up various 
options. I have mine set to "shut down". Since the PS is always on 
except when you switch the actual PS off or pull the plug, I'm not sure 
what you are describing, but the foregoing might help.

Tom Mayer

Russ Cox wrote:
> I have refurbished a number of nearly identical Dell Optiplex GX1's, 
> some with Win ME, some with XP.  With ME, the whole computer shuts 
> down when I shut it down.  With XP, Win XP shuts down and the hard 
> drive turns off, but the power supply stays on.  Same set up on all 
> computers. There is no Advanced Power Management choice in set up.  
> Why do the OSs act differently?
>
>            
>

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