Overclocked Computer won't start up!

[Lysimachus]

Help!

I overclocked my computer, and then when it restarted it made a loud beeping noise and then turned off. Then it turned back on again and just as I get to the first screen (where I am allowed to press TAB, DEL or F1 to go in to the respective system menus) my keyboard doesn't respond so I can't roll back the changes and I don't know what to do now

Please, i'm getting desperate

[Freddie]

Open up your case and remove the round CMOS battery and leave it out for 5 minutes or so then put it back in and turn you computer on.

[Lysimachus]

That did it, thanks!

[Freddie]

That did it, thanks!

Your welcome.