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OCing Pentium D 940 - Page 2

post #11 of 30
Well mine never freezes stuff just crashes or windows crashes when i dont have enugh vcore. Up to 60-62c is pretty safe for a pentd you will have to feed it the vcore to get more of a overclock. Try to keep your vcore around 1.37-1.40 when drooping that seems to be my sweet spot for my pd.
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post #12 of 30
Thread Starter 
Well, I got it up to 4.21GHz. I had to increase the vcore to 1.425v and the fsb to 1.5v. It wasn't stable as it failed orthos in 1 min and 4 sec, but this is the first time I actually got into Windows. Is it safe to run the fsb at 1.5v because nvidia monitor shows a red box next to it which says it is being stressed and could be damaged. However, in the EVGA 680i overclocking guide, it said the highest safe voltage for the fsb is 1.5v. Anyone have their fsb set that high? I'm not even sure if I could even get it stable or not though.

Also, I took off SpeedFan and put it on Manual settings at 100% for all my fans and now I idle at 38C and my comp has been on for a while. Usually it is 40-43C. Will keeping the fans at 100% all the time decrease the life-span drastically? As long as it isn't too much then I guess it doesn't really matter as the fans were only like $4 each.
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post #13 of 30
i dont touch my other voltages when i overclock mine has no affect for me its only vcore seems to matter. What fsb are you running see for me to get 4.51 i only need 265/266. your probly going to have to keep raising the vcore till you find it stable. Then you can decide if you want to keep it thier or downclock it to somthing needs less vcore. Idle temps mean alot less then load temps if your loads are staying under 60c your good.
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post #14 of 30
vcore I think is the biggest part for making it stable, and there is a fair amount of vdroop with the eVGA board, I have mine set for 1.35 in the bios but that equates to more like 1.27-1.3 depending on the load.
    
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post #15 of 30
Thread Starter 
i think i've put vcore up to 1.55v before and it still wasn't stable
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post #16 of 30
wow! really? perhaps there is a NB strap?
    
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post #17 of 30
guess you got a chip dont like to oc mine is exact opp if i had a better board i could run 5ghz daily and water cooling.
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post #18 of 30
Thread Starter 
My mobo has a 8-pin connector but my PSU only has a 4-pin. So, right now I am just plugged the 4-pin into the 8-pin connector. Would this have any effect on the stability of my overclock?
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post #19 of 30
I thk so my friend had same problem and he had unstable overclock when he got a new psu he got his c2d 6600 up to 3.4ghz.
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post #20 of 30
of course it will, only so much juice going in, this is all about the flow of electrons, how fast and how many. Upgrade your PSU and I think you'll be pleasantly surprised, and if not surprised at least happier.
    
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