On Sun, 25 Feb 2007 11:09:20 -0500, JG <no-spam@please.com>
wrote:

>Hello !
>
>I went to a friend's home to make some updates to it's computer
>softwares.
>
>When I plugged my USB Stick, I accidentally touched the case with the
>metallic end of the key. As I did this, the computer rebooted
>instantly.
>
>Later, I removed the case cover to check if there was room for another
>disk drive. Upon closing the cover, the computer rebooted as soon as
>the cover touched the case.
>
>While the humidity was a little low, I did not feel a static discharge
>at all.
>
>As additional info, the computer is plugged in a ups with the required
>grounded wire.
>
>
>What kind of problem could this be ? Static ? Grounding ? Other ?
>
>Thanks !
>

You tell us, is the system properly grounded? Take the UPS
out of the equation, run system straight from the wall
outlet and see if the problem persists.

What PSU are you using?