Is Celeron locking my bus speed?

[vlovich]

I have a Celeron 633 with a 66 FSB on a PCChips motherboard. I have tried overclocking through changing my bus speed jumper settings and through a program CPUCool. Neither worked. Also, how would I find out which chipset my processor is using. I need this to figure out whether the new P3 1.2Ghz will work on my mb.

[The Doors]

Hi vlovich, welcome to the Forum,
Your chip is a good Ocer, so at this point you have to check your Cpu temps@full load (100% load) with MotherboardMonitor, that you can found here (http://mbm.livewiredev.com/) coz the heat is the enemy: never above 40-45 degree C @full load!
With Sisoft Sandra you'll be able to know what kind of PcChips Mobo are you using, and note the chipset is the heart of your Mobo, not of your Cpu. About the OC chance of your Cellie is important the Stepping revison, and till Sandra will show you.
To get a stable OC you need of lower temps, like just said, and probably of more voltage for your Cpu, the VCore, to satisfy the increased request of energy, but not over the 10-15% of the rated voltage.

I hope it helps you ;)

P.S. take a look to the newbie section for more info about the OC thing ;) your system will be gratefull.

[Sir-Epix]

Originally posted by vlovich
I have a Celeron 633 with a 66 FSB on a PCChips motherboard. I have tried overclocking through changing my bus speed jumper settings and through a program CPUCool. Neither worked. Also, how would I find out which chipset my processor is using. I need this to figure out whether the new P3 1.2Ghz will work on my mb.

It is not the CPU it is the motherboard. The mobo is not a very good overclocker. I use that brand with my Celeron setup, and I can't get more then 50MHz out of it. It sometimes does 100, but not for very long. If you want to hit some high numbers I reccommend getting a new Mobo. Preferably one that allows you to change the VCore.

[vlovich]

I have got an overclocking utility. However, to overclock properly, i need to find out the PLL manufacturer and PLL type. How do i do this?

[vlovich]

I've figured out the PLL info and have overclocked to 100mhz FSB. I am now running @ 952mhz with a temperature of 43-45 C @ 100%. I'm going to try increasing cpu speed mhz by mhz now (if i should). Maximum for my mobo/cpu combo is 1.26 mhz (133mhz bus speed with 9.5 multiplier). Probably won't work though as my temp right now is at maximum with this setting. But hey, that's what fire extinguishers are for.

[Yodums]

I'm pretty sure your chip can go more although you'll need a way better cooler than that one and defintely a new motherboard.

[vlovich]

I've managed to overclock to 1ghz by setting the motherboard to an FSB of 105mhz. However, this was refused and instead the bios says that my multiplier has changed from 9.5 to 10 and am using an FSB of 100mhz. Interestingly enough, my CPU temp is actually lower (max 46 C) than it was @ 950mhz (max 48 C) @ 100% load. Just to be on the safe side, what is the recomended temp for a CPU (intel said max was 85 for celerons). The voltage used is 1.79v.

[Yodums]

Your bios is not correct then see if you can dl WCPUID and see your FSB and multiplier, Intel multipliers are locked keep that in mind.

[The Doors]

For your Cellie2 633Mhz, the max temp is 82 degree C (look here (http://support.intel.com/support/processors/sspec/icp.htm)) many comps ;)

[jazztrumpet216]

Yea, but at 82C, that thing ain't gonna be stable for very long. For any kind of stability whatsoever, I'd say you're about at the max. That max is only what the processor run at and not die, not what it's stable at. If your computer crashes due to heat, then there's no use of the extra speed you're getting cause you can't use your computer at all!!! Personally, I'd rather have a lower OC and more stability (less BSODs!!!) than higher speeds for 5 minutes before the 'puter crashes. My $.02. I'll get off my soapbox now....

[vlovich]

I can overclock my cpu inside windows without rebooting with any FSB below 100mhz. At 100 or 105, the only other supported FSBs, the system crashes and requires a reboot. Other than that, system works stable for a while now. Another thing is that all my OCing is put to waste when the comp is turned off completely (not just reset). Something about the PLL rebooting by itself. This actually saved me a few times as i set some bus speeds under which Win2K would not boot. Still, its a pain.

[Yodums]

Originally posted by vlovich
I can overclock my cpu inside windows without rebooting with any FSB below 100mhz. At 100 or 105, the only other supported FSBs, the system crashes and requires a reboot. Other than that, system works stable for a while now. Another thing is that all my OCing is put to waste when the comp is turned off completely (not just reset). Something about the PLL rebooting by itself. This actually saved me a few times as i set some bus speeds under which Win2K would not boot. Still, its a pain.

Just make sure the speeds you set are comfortable for you and they are stable. Keep in mind alot of people just post bogus reports. They say I've got my 633@1.1 gig although it crashes so often.

[vlovich]

It's very stable.