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i7 3820 Max Vcore?

I wouldn't fancy going higher than 1.415v for long term use.

I guess you could push as high as 1.45v, but you'll need decent cooling.
 
Mine is at 125x40 at the moment, and using 1.410v core with LLC set to high.

That's cooled with custom water, doesn't hit above 59ºc 100% load.
 
Great results Paradigm and a great system I just had a look. I would be tempted to also cool the VRMS actively if your using High LLC and over 1.4v. This can lead to cpu throttling if your not careful. Intel spec for this CPU is 1.4v Core, 1.4 VTT, 1.4 VCCSA, 2.1PLL and 1.85 DDR !!! yeah seriously 1.85!!! But who cares about intel spec anyway lol!!!
 
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I've got heatkiller VRM and chipset blocks here, but I'm waiting for my GPU blocks to arrive before adding them to the (or a 2nd) loop.

Fortunately, due to the location of the radiator (half an inch from the VRM heatsink), the VRMs get decent airflow :)
 
Intel spec is 1.4v max whatever cooling your running!!! who goes by intel spec though.
 
mine had zero problems doing 4GHz with everything set to auro and the multi set to 40.

Heck, mine does 4.4 on everything set to auto.
 
I have a 3930K and I've settled at 4.6ghz 1.3V I could probably push further but heat will go up and I'd rather stay as low as possible voltage wise as it was rather expensive. :p

TBH you should just clock the chip at what it's comfortable at... usually they will go up to a certain point very easily with little voltage increase but then hit a wall where lots of extra volts doesn't do much. I generally just clock up to the wall because it's not worth all of the hassle to eek out a bit more with much higher volts (aside from internet bragging).
 
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mmj_uk said:
I have a 3930K and I've settled at 4.6ghz 1.3V I could probably push further but heat will go up and I'd rather stay as low as possible voltage wise as it was rather expensive. :p

TBH you should just clock the chip at what it's comfortable at... usually they will go up to a certain point very easily with little voltage increase but then hit a wall where lots of extra volts doesn't do much. I generally just clock up to the wall because it's not worth all of the hassle to eek out a bit more with much higher volts (aside from internet bragging).
Click to expand...

I agree...ive got it running at 4ghz...went up to about 4.1 with auto tune then gave up...and it reset pc...im happy with 4dhz though....got a couple of problems though....first one is whats the best themal compound to use and the other is can a power supply determine the temp of a cpu..

This is the one i am using
http://www.overclockers.co.uk/showproduct.php?prodid=TH-001-ID&groupid=701&catid=57&subcat=27

my temps on idle at 4ghz are 36c is this about right.
 
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Certainly sounds comparable to mine (taking into account the difference in cooling performance). How long have you had it running for? Has the thermal compound had time to bed in?

Just for reference, my high-flow custom watercooling puts mine at around 29-32c on idle at 4.5GHz, and 35-37 at 5GHz.
 
only had it running for well to be honest about 6 hrs ....how long does it taks for compound to bed in....
the reason i asked i sold my 2600k and board i idled around 34c...he is idling around 22c...the only difference is the power supply....
 
ahh i think this is were i am going wrong....

yes you MUST connect your pump to a constant power that does not reduce or be controlled, i posted on corsair support forums.

So my pump fan runs on full @ 4000rpm and is silent and my fan plugs into cpufan1 and is set on 2 of 10 and to increase when need be

so i have mine connected to the cpu fan...so looks like i need to change it...

Just checked its running fine at just over 4000rpm all the time.
 
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It depends on the compound, how did you apply it? I've always been a supporter of spread method but it seems the pea size blob method is a lot better because air doesn't get trapped and act as an insulator.
 
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