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How high can my PII 400 MHz go?

976 Views 12 Replies 6 Participants Last post by  Ropey
Hey, i was wondering how high can my PII 400mhz go to approxamatly. The max my motherboard can handle is 500 mhz, do you think she could reach that high or do you think i should only bring it up to 450mhz just to be safe. BTW it only goes in 50mhz increments.
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I would try it at 450 and then test for stability. This is the Katmai processor (Slot 1) and since the cache is off chip these were not the most stable processors on the overclock.

R
Quote:


Originally Posted by Ropey

I would try it at 450 and then test for stability. This is the Katmai processor (Slot 1) and since the cach is off chip these were not the most stable processors on the overclock.

R

How will i be able to check for stability, i cant even find a program that will monitor the temps.
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Quote:


Originally Posted by tylerand

How will i be able to check for stability, i cant even find a program that will monitor the temps.

Take the case side off and when you run prim95 you can place your finger close to the fan. You can do an approximation. If you are not erroring in prim95 and the slotted processor case does not feel very hot then you are probably fine and although this is not as useful a method as removing the slot casing and using a thermal diode to test temperatures, it wil work in a pinch.
R
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Does speed fan not work? I tried to overclock my old PII 300 (66MHz FSB - the second most sought-after PII) once, but my board wouldn't do it, which is odd for a DFI board. However, I know they can only FSB overclock. Does your board have a utility disk?
I have a 450 Mhz Slot 1 and I want to overclock him but anywhere in the web. Can somebody help me ?
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Seanix boards of that date were Intel built and as such were not installed with overclock abilities.
If it was a 66mhz bus then you could try the B21 trick and move to 100MHz fsb (with the proper 100MHz mainboard) but you are allready on that bus so I don't think there is much you can do.

R
2
Quote:


Originally Posted by badskater

Thx Ropey for your answer


You're very welcome.


By the way, you can overclock with a slot converter and a Coppermine processor. You could get that machine to around 1.4GHz with a Tualatin converter and a Tualatin processor. It would have to be a Celeron Tualatin to keep within the 100MHz fsb spec but a Celeron Tualatin at 1.4GHz is faster than a Pentium 4 1.6GHz Williamette.

You can find them on ebay.

R
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i'm so gunna get flamed for this, but why would u bother?
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Quote:


Originally Posted by PhireX

i'm so gunna get flamed for this, but why would u bother?


The art of overclocking is not tied to a particular piece of silicon or method.

There are people who can not afford the newest and they (even more than many of us) are greatly benefited from an overclock. Perhaps this person can not afford the outlay of a new motherboard, ram, video card (or o/b solution) case, psu etc.

They could find a Tualatin processor:

http://cgi.ebay.ca/Intel-Celeron-Tua...QQcmdZViewItem

and smart adapter:

http://cgi.ebay.ca/CPU-upgrade-adapt...QQcmdZViewItem

For less than $60.00 and for some people $60.00 is more than it is for others.

You have to step outside of your shoes and not look at what you can afford but what others can afford.

This, by the way, is called "Empathy" and is a tool for understanding others.

R
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Quote:


Originally Posted by badskater

I have a 450 Mhz Slot 1 and I want to overclock him but anywhere in the web. Can somebody help me ?


Try CPUFSB: http://www.cpufsb.de/CPUFSB.HTM
Also check this page to know how to look for your PLL. This way you can make sure CPUFSB is compatible with your mobo.
That's how I overclocked my PIII 450 to 550MHz (from FSB 100 to 122, multiplier locked at 4.5).
Be careful however, when you raise the FSB via CPUFSB you will also raise the PCI bus speed. This may lead to system instability, sudden restarts and or sudden death of PCI based components such as your network card.
As a rule of safety, try to keep the PCI frequency below 37MHz (it's originally at 33.3 MHz).
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Quote:


Originally Posted by z_one

As a rule of safety, try to keep the PCI frequency below 37MHz (it's originally at 33.3 MHz).

^^This is Very Good Advice^^
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