When I shut down my comp I usually unplug my surge protector and I just realized that I've always kept my power supply's power switch (i/o) on the on position. So my question is should I turn it off when I unplug everything. I've always left it on the on position even when I replug my surge protector. I just thought that leaving the power supply on while plugging everything back in could somehow damage the psu. Not that it matters much but its an xclio 450bl.