Max vcore for an E6600 on water?

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cerebrex

[H]ard|Gawd
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I've yet to see a peak orthos load 24hrs+ over 52c @ 1.45vcore @ 3.2GHz

I'm now at 3.4GHz @ 1.55 but not completely stable, I think I will stabilize @ 1.575 - I think this shouldn't be an issue since I'm on water, but I'd like some opinions on where I should stop.

From my reading, 1.60vcore should be my stop point if I can keep peak load temps below 60c - what do you guys think?
 
Personally I wouldn't go over 1.55vcore for everyday use, maybe going higher for a max OC, but not for 24/7 use.

I'm on water too and stopped @ 1.55, (And I even hesitate to stop there :eek: ).

All I remember is frying my old opty 165 with too much voltage & everyday use. It just slowly died.

Stick with 1.55vcore.

Also what mobo are you using, playing around with the multi and fsb and you might get abit more stability out of it at a higher clock. Play with the mobo voltages too and see if that helps to stabilize it out.

GL! :D
 
Intel's stated maximum safe vCore is 1.58750v

Edit: I did a little more poking around, and while some sources say 1.58volts (Nvidia oc'ing guide for example) others say 1.55 (various forums chatter). I tried poking around Intel's site to see if they could fork over some quoteable numbers but didn't find anything. One would think that if all you needed is a teeny bit more juice to be stable and you're watercooling you'd probably be fine, but I can't pull up solid numbers =/
 
what I want to know is what Vcore reading to trust? What I see in nTune is different from what's in the BIOS.

I'm on an E6700 @ 3.4GHz and I think my Vcore is 1.42, but nTunes says 1.39V
 
Is it just me or is this vcore really needed? I guess i got very lucky with my cpu, i can run at stock volt, @3.2 ghz and idling at 25c celcius. (Air cooling) :confused:
 
I'm on an E6700 @ 3.4GHz and I think my Vcore is 1.42, but nTunes says 1.39V
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thats because your getting 0.03v vdroop. personaly i dont go over 1.5v for 24/7 usage. any higher isnt worth the extra few mhz youll get from it IMO

edit:
Intel's stated maximum safe vCore is 1.5875v
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where did you read that?
 
vcore 0.850 / ---- / 1.500 / 1.550

max and abs max.

just set to 8x400 and enjoy the maximized latencies
 
AliP said:
Is it just me or is this vcore really needed? I guess i got very lucky with my cpu, i can run at stock volt, @3.2 ghz and idling at 25c celcius. (Air cooling) :confused:
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I was having some games crash, and was not sure why. I thought maybe I didn't have enough Vcore so i raised it just a bit.

It's idling at 46C on water now though. What is stock voltage btw? 1.36V or something?
 
Josh_Norem said:
I was having some games crash, and was not sure why. I thought maybe I didn't have enough Vcore so i raised it just a bit.

It's idling at 46C on water now though. What is stock voltage btw? 1.36V or something?
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From what ive been reading around, people say that the load temp is what matters. But from the looks of it, you just seem to have a hot chip on your hands. I belive mine only takes 1.37 vcore to be orthos stable at 3.4 .
 
J_Devil said:
I listed source in my post:


The OCing guide I'm refering to can be found here
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well then dont say that its" Intels stated max", because intel never said that, its Nvidia giving numbers for something they didnt make/random forum 'chatter' you found, numbers which are wrong. 1.58+v will fry your CPU with most mainstream cooling soloutions. anything over 1.5v is generaly too much for all but the best air cooling to handle.
 
Darkatom said:
From what ive been reading around, people say that the load temp is what matters. But from the looks of it, you just seem to have a hot chip on your hands. I belive mine only takes 1.37 vcore to be orthos stable at 3.4 .
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Well, it was stable for 99% of the time, but Oblivion and BF2 were crashing to desktop occasionally, and I wasn't sure if it was the game or the overclock. Otherwise, it was totally stable.

Load temps are 62C on water, so temps are fine. I might lower the Vcore to see how low I can go with it.

PS: Sorry to thread hijack
 
well then dont say that its" Intels stated max", because intel never said that, its Nvidia giving numbers for something they didnt make/random forum 'chatter' you found, numbers which are wrong. 1.58+v will fry your CPU with most mainstream cooling soloutions. anything over 1.5v is generaly too much for all but the best air cooling to handle
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Again, note the edit in my first post
 
Well it seems I'm in the danger zone. I have an E6600 @ 3.4 with 1.535v bios 1.49v - 1.5v and temps of 66c - 72c under occt load though my room temps have something to do with that (82f to 90+). I'm changing my heatsink from a scythe infinity to a ultra 120 extreme. Hopfully it will drop my temps and if someone knows if the dfi p965 doesn't get as much vdroop under load as my quad gt I may be persuaded to change boards. I'm not too worried though since I really don't care if this processor last much past Q4 07 to Q2 08 when I make my vista upgrade ( quad core intel or amd and 4 to 8 gigs of ram :D ).
 
ghost6303 said:
well then dont say that its" Intels stated max", because intel never said that, its Nvidia giving numbers for something they didnt make/random forum 'chatter' you found, numbers which are wrong. 1.58+v will fry your CPU with most mainstream cooling soloutions. anything over 1.5v is generaly too much for all but the best air cooling to handle.
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Well, I'm sitting at 1.58v max load 52c in orthos/TAT.

in games it idles loads to about 38-42c... so I think I'm okay.. but I might bring it down to 3.3GHz @ 1.50
 
cerebrex said:
Well, I'm sitting at 1.58v max load 52c in orthos/TAT.

in games it idles loads to about 38-42c... so I think I'm okay.. but I might bring it down to 3.3GHz @ 1.50
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1.58vcore is a bit high, but it's your proc so do what you want lol. :D
 
So exactly which Vcore is everyone going by when saying that 1.55 or 1.58 is the max? The bios or ntune?

I have mine running at 1.575 (in Nvidia MonitorView, I forgot what I put in the Bios, maybe the same thing?) its fairly stable and there is a green square right next to it, saying that the voltage is ok. However the fsb voltage is 1.4 and that has a red square by it. Like I said, its fairly stable, I just have a little more work to do on it.
 
redman223 said:
So exactly which Vcore is everyone going by when saying that 1.55 or 1.58 is the max? The bios or ntune?

I have mine running at 1.575 (in Nvidia MonitorView, I forgot what I put in the Bios, maybe the same thing?) its fairly stable and there is a green square right next to it, saying that the voltage is ok. However the fsb voltage is 1.4 and that has a red square by it. Like I said, its fairly stable, I just have a little more work to do on it.
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Bios. If you were talking about in windows with a program running you'd have to be at over 1.6-1.65 with vdroop to be at 1.55/1.58 in windows under load.

Also too I wouldn't recommend using 1.575 vcore on you cpu unless you're water cooled, and even then for everyday use, I personally woln't go over 1.55 in the bios.
 
JFC!!!


Pull up the intel datasheet for the processor and learn somthing or not.

HINTS. its Intel, its a processor, its a core 2 duo or quad core, its a technical document, its a datasheet I hear Intel has a web site even.
 
BillParrish said:
JFC!!!


Pull up the intel datasheet for the processor and learn somthing or not.

HINTS. its Intel, its a processor, its a core 2 duo or quad core, its a technical document, its a datasheet I hear Intel has a web site even.
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jfc? rtfm?

Intel's specs don't apply to someone water cooling . intel is assuming your using a stock HSF - that way any voltage you use they automatically know the temperature, so they can set an accurate max... when you run aftermarket or water - those specs don't really apply imho.
 
AliP said:
Is it just me or is this vcore really needed? I guess i got very lucky with my cpu, i can run at stock volt, @3.2 ghz and idling at 25c celcius. (Air cooling) :confused:
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Some people have a lot of vdroop.

Stock load for me really = 1.264V and not 1.325V, so I lose some o/c potential. I'm pretty sure I am not stable at 3.2 with this load, but I've never tried.
 
blade52x said:
Some people have a lot of vdroop.

Stock load for me really = 1.264V and not 1.325V, so I lose some o/c potential. I'm pretty sure I am not stable at 3.2 with this load, but I've never tried.
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truth is the above poster is just really lucky... the retail L640+ batches are not so nice with overclocking with low voltages.
 
cerebrex said:
jfc? rtfm?

Intel's specs don't apply to someone water cooling . intel is assuming your using a stock HSF - that way any voltage you use they automatically know the temperature, so they can set an accurate max... when you run aftermarket or water - those specs don't really apply imho.
Click to expand...

jesus fucking christ
 
cerebrex said:
truth is the above poster is just really lucky... the retail L640+ batches are not so nice with overclocking with low voltages.
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Not even an E6600, but my Q702 E4300 does 3.2GHz at 1.312v with the stock cooler...so it is possible with some later chips...but it does take a matter of luck in getting a nice chip...something I've always been "good at".

it doesn't seem like those voltages should be needed at all though, especially not with water.
 
cornelious0_0 said:
Not even an E6600, but my Q702 E4300 does 3.2GHz at 1.312v with the stock cooler...so it is possible with some later chips...but it does take a matter of luck in getting a nice chip...something I've always been "good at".

it doesn't seem like those voltages should be needed at all though, especially not with water.
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ooh that's real good for an allendale. guess they're shaping up too now :) good to see!
 
yeah, it's alright, but at higher overclocks you have to keep your temps a bit lower to maintain stability. Just because you're fine at a certain temp/clock doesn't mean the same temp will be sufficient if you push the CPU another 100Mhz or so. This holds true for GPU's also and I'm pretty sure it's what I'm running into with my E4300 with the stock cooler.

Sorry to go off topic, but yeah...~1.5v should be fine for day to day use, but the temperatures generated BY the higher voltages may prove to be too much at higher clock speeds, so pay attention and you'll be fine.
 
I have a newer e6600 @ 3.2ghz with 1.31v. Idle temps around 30-35C. Full load never goes above 51C. Ambient has been between 72-74F.
 
Its hard to predict the maximum safe voltage on any cpu cos no ones really tested cpu in this matter.... Itll take years to get the results and by that time nobody really cares about the lifespan of a 5 year old cpu...... Everybody has thier own opinion on whats a safe max voltage,but the bottom line is its just an opinion and nobody really knows the correct answer......Intel or somebody else probably did some test but unfortunately we dont run our cpu the same way as them, also we dont know for how long they expect a cpu to last.....

I personally think a c2d running at 1.65v 24/7 is quite safe if properly cooled.... I dont see why it shouldnt last more than 3 years at that voltage.... Anything over 3 years is irrelevant to me cos Im sure it will be replace sooner than that..... my $.02
 
Many people do replace hardware fast enough that it does not matter if their CPU will theoretically only last 2 years...but for some it's still a cause for concern. I believe at one point or another Intel has put forth information saying that 1.5v or so is the end of the "safe range" when it comes to voltage (don't quote me on that though)...but that's not to say that with proper cooling you can't do more.

On air I wouldn't cross 1.55v max I think...but with water/phase it'd be a different story all together.
 
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