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Is it worth the extra vcore?

post #1 of 16
Thread Starter 
Hey guys, I have a newer batch e6600, and in order to get it stable at 3.2 it needs 1.45 vcore...

I finally got watercooling, and am wondering if it is ok to run it at 1.55 vcore.

I just oc'd to 3.5 @ 1.55 vcore and with orthos 8 hours stable it loads at 48C and Idles at 28C...

At 3.2@1.45 it Idles 27C and loads at 42C....

Is the extra vcore worth the .3 ghz boost in performance???

Is 1.55 vcore ok with my WC setup?
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The Warrior
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post #2 of 16
Your temps look good but it will not last as long at 1.55v. How long I have no idea maybe a few years/ 6 months/ 10 years i am not really sure.

I run 1.55 vcore under phase change, i dont know if i would run the same volts under water.

Do some benches and play some games and see how it performs at both clocks, probably not a noticable difference really
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xeon
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post #3 of 16
Ya, It's safe for watercooling, don't go 1.55+
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post #4 of 16
http://www.ocforums.com/showthread.php?t=384756


It will shorten the life of your processor but this still might be years. It is diminishing returns so you might want to try a few more voltages/overclocks. Graph the data and make a decision.
Once again...
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post #5 of 16
I would not do 1.55VCore ... that's quite a jump over stock (which is 1.2875 for the newer versions Core 2 Duo if I am correct).

Even for the older 1.35V C2D's, it a bit high. My limit is 1.5V.
    
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post #6 of 16
Do you really need to go that high for 3.5GHz or even 3.2GHz?

I'm at 3.0GHz @ 1.192v (1.25v technically)
post #7 of 16
Well your cpu is probably a better week, its hard to compare two different cpu's that oc differently hence why everyone doesnt have 5.0ghz c2d's to bench with. Some of them just wont make it. In his case i think the diminishing returns thing plays into it in that at 3.2 he has a ok vcore but trying to get that extra bit its gotta start going way up.

This is where you know you should stop unless you wanna bench or something.

As far as voltage and whats safe people that i have talked to say .1 increase for each step of cooling. So that would be good air (not stock) 1.425, water 1.525, good phase 1.625 so on and so forth, but thats just a hearsay thing that i keep in the back of my mind and use as a sort of guide line. Its not fact though and could be totally wrong so dont start quoting it all over the place.
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xeon
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post #8 of 16
does it matter if the temps are still good?? my new 6420 is on 3.65Ghz and thats seems to be only obtainable at 1.65 vcore but temps never go over 43C from 29 idle.....is this a recipee for disaster or am i ok? (top notch water cooling) OR shall i whip the peltier back out and get it into the negs???????
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post #9 of 16
Its up too you, I personally would probably be very tempted to run in the higher vcores to get higher oc's ecspecially with some kick*** water cooling. But i really like ocing and dont mind if my chips dont last as long because i know at most in 2 years ill get another one. I think it will be ok as long as you have good temps with higher volts.

I think if i remember right the elctro migration thing is compounded when temps get really high, which is bad and why air cooling with really volts is bad . Heck even a stock cpu with high temps can be bad even if its not oced.

Anyways Mark i cant recommend to go over 1.55 or so on good water but can I say that i wouldnt ...
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xeon
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post #10 of 16
Thread Starter 
Well I plan to get the Q6600 when crysis comes out, so longevity is not something I am worrying about....

When I run 3d Mark06 with it @ 3.2 I get a 9,000 score, and with 3.5 I get 10,000....

So it shows a difference....
The Warrior
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The Warrior
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