> 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 ?
>


Is the mobo an ECS?
If so...some of them are a bit prone to static

However...also check tobe sure the UPS is grounded properly!