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Help with overclocking a P4 2.4 system

post #1 of 9
Thread Starter 
Hi, i'm a new overclocker, appreciate anyone can help.

I have a P4 2.4GHz(133MHz x 18) CPU with ASUS P4PE-X mobo, and the RAM is 512MB PC2700(166MHz). I'm trying to OC to 2.8GHz(156MHz x 18), but i lose the sound. If I set to 148MHz then only can get back the sound. Is that mean my CPU max stable is 2.66GHz(148MHz x 18)? And the temp is fine, it remain below 50C even I set to 156MHz.
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post #2 of 9
I think soundmax is an integrated audio for ASUS P4PE-X right? try to download an updated driver. but if it still won't work, what i think is that your memory is limiting you from OC'ing.. try to upgrade your memory to a higher speed.. since your mobo and CPU supports until 800MHZ FSB inorder for you to have a stable OC, find a memory lets say DDR400MHZ or faster.. faster memory means more room for OC. with your processor you can go higher than 2.8GHZ with proper cooling and with the right memory. i think others can tweak it up to 3.2Ghz. i noticed that your still using the stock cpu fan.. i suggest replace it with a much higher RPM fan lets say 6000RPM just to avoid a toasted cpu
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post #3 of 9
Thread Starter 
Thanks sean_4c, will try to download the laster driver for the soundmax, will keep you update. But my memory is suppose can go until 166MHz right? now i only using 148MHz, appreciate you can solve my problem.
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post #4 of 9
Quote:
Originally Posted by babydugong
Thanks sean_4c, will try to download the laster driver for the soundmax, will keep you update. But my memory is suppose can go until 166MHz right? now i only using 148MHz, appreciate you can solve my problem.
your memory clock speed is different from your CPU's FSB.. your processor's FSB is 533MHz and your memory clock speed is 166Mhz. so the one that you set to 148 or 156 is your processor's FSB. there's another portion of the bios which will allow you to set the memory or DDR Clock speed. it is advicable that you will have a memory speed similar to your cpu's maximum FSB so that they could run in a 1:1 ratio.. also when it comes to intel processors 148Mhz means running your CPU at 276Mhz.. that's 148X2 = 276... which means that if you have a faster memory for exampla DDR400.. you could set your CPU's FSB to a maximum of 266mhz.. that's 266X2 = 532Mhz..

you get the picture? 166Mhz of ram is too slow for an overclocker.. :

if ever you purchase a faster memory, i asure you that you can go beyond 2.8Ghz or even beyond 3.2Ghz of processor speed and dont forget to upgrade your processor fan as well!!

by the way according to the results of CPU-Z that youve posted, your multiplier is x18? did you change it or that is the stock multiplier for your processor? since as far as i know, intel's multiplier are usually locked..
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post #5 of 9
Thread Starter 
According to CPU-Z, my memory max speed is 166MHz right? Before i OC, the CPU's FSB is 133MHz and the memory is 166MHz, and is runing 4:5 ratio, after i OC, it become CPU's FSB is 148MHz and the memory is 148MHz, and is runing 1:1 ratio, and this is what CPU-Z show me. And actually I did adjust the RAM speed to 296MHz(DDR suppose to divide by 2 right? and this is the mobo setting right?). please correct me if I'm wrong.

Another thing I don't understand, accoding to the first page in this post, intel P4 FSB suppose is MHzx4 then is your bus speed right?

And the multiplier is lock by intel, I can't adjust.

Sorry for so many question, appreciate for your help.
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post #6 of 9
Quote:
Originally Posted by babydugong
According to CPU-Z, my memory max speed is 166MHz right? Before i OC, the CPU's FSB is 133MHz and the memory is 166MHz, and is runing 4:5 ratio, after i OC, it become CPU's FSB is 148MHz and the memory is 148MHz, and is runing 1:1 ratio, and this is what CPU-Z show me. And actually I did adjust the RAM speed to 296MHz(DDR suppose to divide by 2 right? and this is the mobo setting right?). please correct me if I'm wrong.

Another thing I don't understand, accoding to the first page in this post, intel P4 FSB suppose is MHzx4 then is your bus speed right?

And the multiplier is lock by intel, I can't adjust.

Sorry for so many question, appreciate for your help.
i see.. my bad.. yup, actually that is correct like for example for your CPU, the advertised speed is 533Mhz divided by 4 = 133Mhz that is why that is the default FSB of your CPU according to CPU-Z.. and the ram speed that you are going to see in your BIOS will be either divided by 2 of the advertised speed or exactly equal to the advertised speed. in your case it is your memory speed which is 333Mhz divided by 2 that is why you have there 166Mhz in CPU-Z. Compared to my rig, my memory speed is displayed as is..

and by the way what did you use when you adjusted your ram speed to 296Mhz, was it in the bios?

anyway is till suggest to upgrade your memory to a faster speed maybe 400Mhz than the one that you currently have which is 333Mhz. your current speed will only limit your OC until 2.9GHz look for PC3200DDR400 and definitely you will exceed the 2.9Ghz barrier +a stable system.

400Mhz memory speed is still supported by your mobo according to this site below: http://www.motherboard.cz/mb/asus/P4PE-X.htm
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post #7 of 9
Thread Starter 
Yup, I adjust my RAM in the BIOS, and I will try your suggestion, thanks.
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post #8 of 9
Check to see if your overclocking your PCI bus as well. If you are that is most likely why your sound stops working. Look for something in your motherboard that states PCI bus, It should stay at 33mhz if there is an option for auto or fixed[locked] set it to fixed or locked. Fixed and locked are just the different ways that they are worded from different makers
    
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by SpookedJunglist
Check to see if your overclocking your PCI bus as well. If you are that is most likely why your sound stops working. Look for something in your motherboard that states PCI bus, It should stay at 33mhz if there is an option for auto or fixed[locked] set it to fixed or locked. Fixed and locked are just the different ways that they are worded from different makers
My BIOS is show "AGP/PCI Frequency Setting", and is set to Auto, is default setting. So it should be 33/66MHz right?

And if I set to Manual, it come out all this option:
66.66 33.33
67.26 33.63
67.86 33.93
and a lot more

How should I do? Appreciate for your help.
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My System
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CPUMotherboardOSMonitor
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