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upgrading celeron 2.66Ghz to pentium 4 3.0Ghz

Last response: in CPUs
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August 28, 2013 2:53:26 AM

Hi,
I want to replace the celeron 2.66Ghz processor on my p4m800m7a mobo to a pentium 4 3.0 Ghz processor.

From my reserch everything seems to be fine to do however I am not sure about needing to update the bios to accept this processor.

I realize this is an older system but my budget does not stretch very far and while I am happy enough with the speed of this system any extra speed would be great.

Basically is it just a matter of changing processors and booting up or is there something else I need to do?

Any advice would be most appreciated.

Thanks ....

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August 28, 2013 3:09:37 AM

There are several models of 3 GHz Pentium 4, but they should all work in this motherboard, even though the Biostar website is not exactly helpful on that detail.. No sign of any BIOS updates either, just the original one from 2007. There is no need to update the BIOS if it supports the CPU.
I'm pretty confident it will work fine.
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August 28, 2013 3:12:52 AM

baladin said:
There are several models of 3 GHz Pentium 4, but they should all work in this motherboard, even though the Biostar website is not exactly helpful on that detail.. No sign of any BIOS updates either, just the original one from 2007. There is no need to update the BIOS if it supports the CPU.
I'm pretty confident it will work fine.


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August 28, 2013 3:17:20 AM

Hey thanks for answering.

I am a bit of a noob when it comes to cpu upgrading so I am grateful for advice, I will just replace the processor and see what happens.

Cheers... :) 

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August 28, 2013 3:22:33 AM

u_gonna_squeal_b4_we_cookya said:
Just make sure it is a LGA 775 CPU (many Pentium 4's are Socket 478 which have pins).

Also, if you can, look for a CPU with hyperthreading since your motherboard supports it. It will increase your performance in some apps and the price between a non-HT and HT Pentium 4 is almost nothing. If you can only go up to 3.0 GHz, the "631" is a good choice: http://ark.intel.com/products/27479/Intel-Pentium-4-Pro...

Although, if you can go higher than 3.0 GHz, the 650 or 660 would be better as they have higher clock speeds at 3.4 and 3.6 GHz.

I upgraded an old HP once from a 519k (3.06 GHz) to a 650 HT and the difference in everything was much better especially streaming videos.


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August 28, 2013 3:28:36 AM

Nice, my choices are limited I am not sure which pentium I have as I am cannibalizing a hp computer for the processor (it may even be a pentium d) so I think I just need to suck it and see whether it works or not.

Great name and I hope to be back soon!!!

Cheers :) 
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August 28, 2013 6:20:01 AM

Thanks Baladin and u_gonna_squeal_b4_we_cookya(awesome name) it worked spectacularly and am back up and running with what seems like twice as fast system, WOW. Just gotta make sure it doesn't overheat (raised temp 10-20C) but still seems stable.

Cheers...:) 
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August 28, 2013 6:54:20 AM

yeah bit of a problem i dont have none but i will get some tomorrow. I think a local supplier jaycar will have some but i dont know how much (can look it up i suppose). Should be alright for the night i imagine (hope). I also guess that being a dual core processor that it is more likely to run warmer, i guess that so long as it doesnt get above maybe 80C it will be fine???? still unbelievable the increase in performance though i can now stream video at hi res with minimal lag (still a little low on FPS). Do you think maybe a bit of overclocking would be worth the risk for reward, it something i have always wanted to try but used to hear a lot of horror stories back in the day, but it does seem a lot easier and less problematic (bios control seems to support it).

cheers mate....
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August 28, 2013 7:27:15 AM

so a little overclock is good but not to high without extra cooling. is it worth it? would i gain much performance? i think the clock speed is set at 133Mhz so maybe try 166 and go from there. I also read that increasing the clock multiplier might work but could affect GPU to much, i just got 128MB agpx8 geforce fx5200 that replaced my old 64MB geforce card, but again i dont know enough to be confident that i am not gonna melt stuff. so maybe small steps is the way to go. one thing i noticed when replacing the cpu was that heat sink and fan off the pc cannibalized was an upright fan and radiator type heatsink that seems better (bigger) than my original heatsink/fan however the mounting is screwed unlike plastic clipped, I am sure i could dodgey something up to make it fit but again i suppose if it dont fit right it isnt gonna work efficiently and effectively. the other thing i am trying to figure out is what revision my mobo is so if i come across a higher CPU i might be able to use that. do you know much about mobos?

Thanks for your time i hope im not imposing on you too much

cheers...
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August 30, 2013 5:08:35 AM

u_gonna_squeal_b4_we_cookya said:
zombie dj said:
so a little overclock is good but not to high without extra cooling. is it worth it? would i gain much performance? i think the clock speed is set at 133Mhz so maybe try 166 and go from there. I also read that increasing the clock multiplier might work but could affect GPU to much, i just got 128MB agpx8 geforce fx5200 that replaced my old 64MB geforce card, but again i dont know enough to be confident that i am not gonna melt stuff. so maybe small steps is the way to go. one thing i noticed when replacing the cpu was that heat sink and fan off the pc cannibalized was an upright fan and radiator type heatsink that seems better (bigger) than my original heatsink/fan however the mounting is screwed unlike plastic clipped, I am sure i could dodgey something up to make it fit but again i suppose if it dont fit right it isnt gonna work efficiently and effectively. the other thing i am trying to figure out is what revision my mobo is so if i come across a higher CPU i might be able to use that. do you know much about mobos?

Thanks for your time i hope im not imposing on you too much

cheers...


For now, just stick with the base clock (BCLK) which is what I assume you mean when you said the clock speed was 133 or 166. You are correct about the multiplier, it will complicate things, but not as bad as newer CPUs since the older ones have a separate northbridge (aka front side bus) and southbridge which are responsible for controlling the RAM, PCI slots, SATA and USB among other things. The newest CPUs have the northbridge and southbridge on the CPU itself which is why changing the multiplier affects nearly everything else in the PC.

As for the CPU coolers, if the one you got from the other PC has a mount that is different from the one you currently have, check the old motherboard. If the old board still has the mount on it and the bolt pattern is the same (same square size) then you can probably remove that mount and install it on your motherboard. I have, in the past and on really old PCs, used zip ties to hold down a tower heat sink. But, when the case is a tower case that stands the motherboard up on its side, this is not really a good idea unless you use like 8 zip ties and they are really tight.

Most likely, the Pentium D and Celeron D is the newest CPU you can use on that board. Even though most Core2 Duo and Quads also use the same LGA 775 socket, they will not work because the chip set (which includes the northbridge and southbridge) is different. You could possible use a higher clocked Pentium D which goes up past 3.0 GHz though I'm not sure exactly what the highest one is. If you get a good enough CPU cooler, you can just overclock it to that speed. But, if you get one with a higher stock speed, it will naturally overclock to a much higher speed itself.


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August 30, 2013 5:18:51 AM

Sorry pressed wrong button , thanks for the info, I think I am not ready to take a risk on overclocking just yet. Not until I have a backup system up and running in case I fry it. Did get the thermal paste on today though and it seems to really stabilize the temps, I am using cpuid to read temperature and if I am reading it right its stable at 40 degrees. I tried using warpspeeder to try to understand how to overclock a bit more but some of the features dont seem to want to work on my system. I guess it is best to use the bios to change the BCLK but I still need a bit more info before committing to the change.
Cheers

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