un-overclocking

[Lobok]

how do you un-overclock a computer if it won't boot up? The processor is a P3 450 and it is running like a 600(I overclocked it too much). What is the best way to do this w/o frying the processor? thanks!(I will post MB and chipset info later if needed)

[flounder43]

If you changed any jumper settings, put them back.

If any bios changes were made, you need to clear the CMOS using the jumper on the motherboard. It is usually near the battery, look in your manual for details.

[Lobok]

would pulling the battery out work? that would also clear cmos(I have identical comps nearby that I could copy the settings from if needed)

[flounder43]

Pulling the batter will work, yes.

[jazztrumpet216]

Originally posted by Lobok
would pulling the battery out work? that would also clear cmos(I have identical comps nearby that I could copy the settings from if needed)

Make sure the computer is unplugged, otherwise pulling the battery won't do a thing. Most motherboards have a "clear CMOS" jumper (like Flounder said) or two solder points you can momentarily short-circuit. I'd recommend that over pulling the battery, but they'd both work.

[Godfodda]

You've probably already taken care of your problem by now, but FYI:

When I push it too far and am too lazy to take off the case side I pull the power cable for a few seconds. It'll usually reboot with default settings for the CPU then. Only if I seriously screw it up do I have to open the case to clear. Just a note on saving a little trouble anyway.

[tainice]

Originally posted by Godfodda
You've probably already taken care of your problem by now, but FYI:

When I push it too far and am too lazy to take off the case side I pull the power cable for a few seconds. It'll usually reboot with default settings for the CPU then. Only if I seriously screw it up do I have to open the case to clear. Just a note on saving a little trouble anyway.


This trick may only apply to certain mobo tho...for examlpe, my abit will certain do that, but not other brands..Not very sure about this.

[wayshot]

With my Aopen AX63Pro 'board, I can press and hold the "Home" key while starting the computer, in order to POST at default processor speed if it's been clocked too high.
Nice thing with my ex-processor, a Celeron 300 @ 450. Sometimes the multiplier lock dropped out or changed to 4, so I increased the FSB above 100 MHz. But after a few reboots, the multiplier lock came back at 4.5, and the computer didn't start. Pressing the Home key while starting brought the FSB back to 100 MHz so the processor would POST.