computer does not shut off just reboots

when i use start menu to shut down computer it shuts down and then restarts .... i thought it might have been a problem with the os but did a reformat . still doing it. i pushed the power button and the computer shut off - all except the power supply it makes a humming noise. if anyone has any input it would be appreciated.

 

What windows version do you have? If it is Win98SE, have you installed the shutdown supplement?

Also do you have a network card installed?

http://www.aumha.org/a/shutdown.htm

When you push the tower button to shutdown, are you keeping it pressed for more than 5 seconds. Just a quick press would normaly put you in standby, rather than shutdown.

 

no network card/windows98se 4.10.2222a
no shutdown supplement and i push the button more than 5 seconds
and i also tried pushed the button for less than 5 seconds
system never returns back
could this be a hardware problem?

 

See the Win98SE troubleshooting page in the link above. (left side of page). It also has a "Direct link" to the shutdown supplement.

There are detailed troubleshooting suggestions there as well to try.

You may also have to experiment with disabling (or enabling, if disabled) APM in Windows or in the BIOS

In SE APM can be disabled in Windows through the Control Panel Power Management applet.

 

i disabled the power management in the bios and i get the screen it is now safe to turn off your computer... so far that is good because i can shut it off manually... im satified for now until tomorrow. but thank you for your help .. . bye for now