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**CHHAS** · 1 May 2001, 03:38

You can't change the multiplier of your Celeron, it's locked. You can change the voltage either in the BIOS (if it supports it) or by physically cutting connectors on the Processor Slot Card (I think Tom's had a guide on how to do it a while back).

Failing to boot might be solved with higher voltage, but whether or not it will be stable is another matter.

When you run your FSB at 75/83 MHz you are indeed running the AGP/PCI speed above specifications, whether or not this is a problem depends on your hardware, some have no problems others nothing but.

**HollyBerri** · 1 May 2001, 09:55

You're not alone,G200 PSYCHOMAN-- I also have a Celly 333, and mine won't run at 100MHz FSB either (on 2 different boards, a DFI BX board with SoftBIOS and my current ASUS P2B-f, which uses jumpers to set the FSB). At 83MHz, it will post, but is not stable, which is to say it may or may not boot into Windows, and if it does, it won't be there long. I am pretty skeptical about the wisdom of running at 83MHz anyway.

The highest stable FSB is 75 MHz, which is not very much use, so I went back to boring old 66MHz and forgot about it. I even once tried taping up the connectors, but that didn't work at all-- my taping skills are not very good. I'm not even going to try "cutting some of the tracks on the PCB".

Myself, I think that the majority of such old processors won't do it unless you happened to get a CPU out of a really good batch. I'll just save up for a P3 or a Duron (if I can manage to save enough for a mobo as well).

If you do succeed, I'd like to know how you did it, though.

------------------------
Holly

**SteveC** · 1 May 2001, 16:02

I wouldn't run at 83Mhz FSB - that's pushing the AGP and PCI slots just a little too hard. Making your 333 do 500Mhz is easy - my dad's PC is a PII-333 running at 500Mhz, and I have a 2nd PC which is a celeron 300A running at 450Mhz.

The PII-333 is on an Abit mainboard where I can change the core voltage, so that was easy, but on the celery 300a I had to cut some of the tracks on the PCB so that I could get 2.2Volts out of it.

------------------
Cheers,
Steve

"Life is what we make of it, yet most of us just fake"

**G200 PSYCHOMAN** · 1 May 2001, 16:04

Thanks CHHAS

But, i thought i read somewhere that it WAS possible to change multiplier - by messing around with the cpu physically

Anyhow i was surprised someone told me his friend o/c his celeron 300 to 6XXMHz and ONLY used a double fan-heatsink for cooling!
And i cant even get 100fsb!

**Wulfman** · 1 May 2001, 16:27

100? 24mhz!

http://forums.murc.ws/ubb/Forum3/HTML/003761.html

mfg
wulfman

[This message has been edited by Wulfman (edited 01 May 2001).]

**G200 PSYCHOMAN** · 1 May 2001, 23:15

hmm
it seems to me that 300 > 333 because they get more o/c potential

well my comp was stable @ 83MHz last year, except i could even feel the heat coming from the case! (must be because of the higher voltage used) so i left it at 66MHz

Hollyberri i dont plan to o/c but i know that to o/c celys you need powerful cooling and to be able to change the locked multiplier! i dont think upping fsb will do.

**CHHAS** · 1 May 2001, 23:18

My Celly 300a was running happily at 464(103 MHz FSB) for over a year before I replaced it with a P3 500. I bumped the voltage from 2V to 2.3V and used the stock cooler.

**Maggi** · 2 May 2001, 07:23

I had

one Celeron 300A running at 464MHz (103MHz FSB)
one Celeron 300A running at 504MHz (112MHz FSB)
one Celeron 333A running at 500MHz (100MHz FSB)

All were rock stable at those speeds, but all had to be tweaked to run at 2.2 volts core.

Follow the link below to find out how to alter your VCore on any Slot 1 MoBo ...

http://www.3dhardware.net/articles/slot1voltage/

Good luck,
Maggi

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o/c celeron 333 -pls dont laugh! ... :(

o/c celeron 333 -pls dont laugh! ... :(

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