I switched a few settings in BIOS and now the computer wont start up. I overclocked it, and played with a few of the AGP settings. And now the computer won't start. The screen is black, the computer turns on, but I cant even get into BIOS. I tried the switching the cover over the pins by the motherboard battery and then turning it on (computer didnt even start up) i then replaced it and it started up but i couldnt get any BIOS or monitor action. Please Help!!!

ok u oced it to far. u need to unplug power supply and pull side panel . find your cmos . pull the battery then jumper the cmos. will restore default settings.

I had something similar happen to me recently ... overclocked a bit too far and then my PC shut down. Tried rebooting it, but couldn't. (The moral of the story: we should overclock in smaller increments!) Anyway, I didn't actually have to remove the CMOS battery; I did locate the CMOS reset jumper, switch to the other two posts, try to boot that way, then switched the jumper back to the original position, and that fixed it.