That means you CPU overclock was unsuccessful.
Instead of shorting it, take the battery out. I know it does the same thing, but humor me. Leave it for a minute or so, then put the battery back in.
You may also need to unplug the power cable from the power supply and switch the power supply off (if it has an external switch). Leave it like that for a couple of minutes, then plug the power supply back in and turn the power switch back on. After a few seconds, you should be able to turn the computer back on via the power switch.