Hi, A couple of days ago, I tried to overclock my system, but after I saved to CMOS I can no longer boot up the computer; as in the monitor doesn't even turn on now (so I can't see what's happening) and I don't hear a beep from the case anymore. I tried clearing CMOS (left the battery and power out overnight), but that seems to have no effect. I took out all my cards, and then the VGA card and then I took out the RAM too, but the computer doesn't seem to notice and still does exactly the same thing (ie nothing). Can trying to overclock my CPU actually wreck my hardware? Did I burn out my CPU or something? I'm reasonably sure my fan is working properly, as it was working before. Do you have any idea what could be wrong? Ant.

A slight change to voltage or speed can never fry your system. A large change to voltage or speed can easily fry your system.

Did you try taking the battery out and the power leads out from the board that come from the power supply? Sometimes there will still be power in the p/s that could keep you from clearing the cmos, even if the pc is unplugged from the wall.

That is the same exact question I asked in my last post to this website. I'm just going to send mine back for a new one which will hopefully come by the time I go to college. I have the GA-7N400 Pro 2 and I oc'd it to 220 mhz fsb coming from 195mhz and could not do anything about it. The system just wouldn't post. I took out all the leads to no avail. I just give up but keep trying to take out all the leads and then clearing the cmos. May or may not work as the person in my post suggested. Depends really on how much you oc'd it. Good luck hopefully better than mine!

If u have a k7ns u have to change a jumper that makes it go back to 100 default change it back to 133 then put the jumper back good luck...

"I oc'd it to 220 mhz fsb coming from 195mhz and could not do anything about it. The system just wouldn't post" New overclockers should take note of this post. Too big of a change all at once can ruin your system. Small changes never do.

Just an update of what happened: I had my parts checked and it turned out my motherboard was faulty. It took a week to get a replacement, and now this one works totally fine and a lot faster than the dodgy one I had before.