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Ocing 3.0C

R

Runemage

n00b
Joined
Dec 15, 2002
Messages
54
Hey guys, I have been playing with my 3.0c a bit, to get it prime stable have to set voltage to 1.775 in bios, which gives under load about a average of 1.73 volts, now i have read alot of threads here and other places talking about how the newer northwood cores are not as bad at getting SNDS with voltages like that, have a decent water cooling system, system is not stable at 255 FSB which is 3.825 with 1.75, but that bump to 1.775 makes it stable for 2 instances of prime 95. Just your thoughs on it.

Thanks,

Eric
 
geee im not sure what my volts are anymore but on on stock cooling running at 230fsb, but my puter posts at 250, but im on stock and i got scared rofl
 
i mulled this one over to i got a new northie and water cooling basically on air anything over 1.65 is unusable becasue of heat so pushing it to 1.7 on water is fine. i tested all the way up to 1.775 as well and only got about another 2 FSB for the extra voltage. i set it back to normal then 1.7 and about 3 days later my OC was no longer stable @ 3.78 and then not even @ 3.75 had to drop voltage and seems fine now for weeks @ 3.7 :( so no i wouldnt push that voltage if i was you :)
 
Alright, thanks for that, I have only booted at that voltage. I can do anythin at 1.75 which i do not think is much as monitor reads from 1.68 to 1.74 set at that in the bios. The only thing that I cannot do is be prime stable, i can run 32 million on superpi and it's fine, i can loop 3dmark all day long, but no go on prime :(. I just wish it was prime stable but oh well. Such as it goes I guess.

I though about this, and it works, so let me know what you think
at 240 fsb i can run ram at 1:1 and less volts to the processor also only 1.675 for prime stable, but 3d mark scores, and everything are less at this than going for all out mhz rating at 5:4 divider.


Thanks,
Eric
 
have you run memtest? if you havnt you must....... what test does prime fail and after how long?
 
Wow that is alot of voltage. What kind of temps are you running. I need to change over to water because I know I could do 4ghz stable. I am running 1.675 btw.
 
sorry have been on vacation i get 33 idle and about 44 at load. one instance fails after about 4 mins, the other after about 3 hours, and memtest wouldn't help, i can run this ram at 1:1 at 240 fsb, with 2-2-2-6 all day long, and prime is fine, but i have found for benches atleast almost all score higher with pure clock speed, so 1:1 is not so important to me, so i run at 5:4 and can promise it's not my ram when it's only running at 204 at that speed, thanks for the suggestion though,
but still haven't recieved an answer to mine, i see all these threads about snds with only "extreme" voltage now, and 1.75 used to be the highest with the northwoods, is that still true or would 1.775 be too much, if so that is my only question thanks guys.
 
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