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post #291 of 2301
Quote:
Originally Posted by Khalam View Post

your lucky you wrote that last part Levesque;)
i didnt have to pay for the mb and ram for this setup, rest comes out of my own pocket, especially the chips:( so now i have to rma this one and wait for another one to come (dont even have money to buy a second one:( ive noticed that one of the mounting studs (or what ever you call it;) is loose and the koolance 370 block isnt tight in on one side so id say thats where my high temps come from:(

Don't worry my 3930k was identical. To run a stable 4.7ghz I had to use 1.49vcore...Albeit according to cpu-z and ROG connect it would almost never reach that high...Usually would stay around 1.45v. But anyhow, validation around 5.0ghz is pretty easy to do, but getting it prime blend stable for hours was not possible past 4.7ghz. I RMA'd mine to try my luck with another, and ended up with a 3960x. So we'll see how this one does.

Now I WILL say that even at 4.7ghz, this chip absolutely DESTROYS my 990x @ 5.0ghz in multiple benchmarks and even more so in realworld stuff like After Effects, Sorenson Squeeze, Lightroom, etc...So in the end I love SB-E!
    
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post #292 of 2301
It cracks me up any time you guys get not so good overclockers and then you just RMA them even if they work they way intel sold them too. I have to be the luckiest guy when it comes to buying chips or they must ship all the good ones to microcenter by me tongue.gif
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post #293 of 2301
Quote:
Originally Posted by KidKB View Post

Don't worry my 3930k was identical. To run a stable 4.7ghz I had to use 1.49vcore...Albeit according to cpu-z and ROG connect it would almost never reach that high...Usually would stay around 1.45v. But anyhow, validation around 5.0ghz is pretty easy to do, but getting it prime blend stable for hours was not possible past 4.7ghz. I RMA'd mine to try my luck with another, and ended up with a 3960x. So we'll see how this one does.
Now I WILL say that even at 4.7ghz, this chip absolutely DESTROYS my 990x @ 5.0ghz in multiple benchmarks and even more so in realworld stuff like After Effects, Sorenson Squeeze, Lightroom, etc...So in the end I love SB-E!

except your 990x doesn't have a dumb mhz wall and actually scales with temperature tongue.gif
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post #294 of 2301
Quote:
Originally Posted by badatgames18 View Post

except your 990x doesn't have a dumb mhz wall and actually scales with temperature tongue.gif

lol yeah that's true. Perhaps if I was a hardcore overclocker and that was my main objective, I would probably be a quite disappointed.
    
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post #295 of 2301
I don't think you would ever be able to run a 990x at 4.8ghz on a H80. I'm very happy with my 3930k!! For the people that are just going to use the chip for what it's for should be too.
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post #296 of 2301
ay well only reason i got one is to improve my scores, cant do that without a chip that will do at least 5200-5300mhz:(

ohh and this chip literally walls at 4800mhz, even 4805 wont work, freezes on loading screen straight away even at 1.675v...
post #297 of 2301
Quote:
Originally Posted by Khalam View Post

ay well only reason i got one is to improve my scores, cant do that without a chip that will do at least 5200-5300mhz:(
ohh and this chip literally walls at 4800mhz, even 4805 wont work, freezes on loading screen straight away even at 1.675v...

Eek that's high voltage. You're living on the wild side rolleyes.gif

My chip from TigerDirect (eww) was supposed to get here today but *surprise surprise* it's delayed until Monday. My MIVE is on the truck on the way to the house though =/.. gotta stare at it all weekend.
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post #298 of 2301
Quote:
Originally Posted by Hambone07si View Post

I don't think you would ever be able to run a 990x at 4.8ghz on a H80. I'm very happy with my 3930k!! For the people that are just going to use the chip for what it's for should be too.

you can, actually the 990x is very well binned, most will do 4.5-4.8ghz stable on air/water in the high-end, and don't pull as much power as these newer CPUs.

I have down power measurments with my 3960X, and im about to do it with a 3930K to gather more data. This is the amount of watts pulled, NOT from the wall, but from the PSU's 8-pin connectors, which only power the CPu VRM, they give a very good number for CPU power pull, as close as you can get really without tapping into the current monitoring pins on the PWM. This is totall watts pulled by the CPU, remind you exchange rate is 85% loss in efficiency and traces impedance and conversion, like MOSFET switching losses.
Its going in my SBe OC guide, but this will explain all the heat at 4.5ghz-4.8ghz:
361

as in .85 times 352watt at 4.8ghz=300watt after conversion from 12v to 1.x volts.
Edited by Sin0822 - 12/2/11 at 3:02pm
    
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post #299 of 2301
Ah much better!

Looks like my 3960x is doing way better than my 3930k. The K would crash with 1.45v within seconds of IBT/Linx....Prime95 blend next!

Edit:

Man this chip is loads better than my 3930k. I'm now at 4.7ghz using 1.38v and running stable after 20 runs IBT and 3 hours of Prime95 blend!

299

I suppose I'll see if I can get it stable @ 5.0ghz just for giggles.
Edited by KidKB - 12/2/11 at 8:27pm
    
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post #300 of 2301
I learned something today after hooking up my cooler express.

there is definately something to be said about the PCIe lanes being on the CPU now.

At 4.8Ghz on liquid cooling I scored LESS then I did at 4.5ghz on 3Dmark Vantage and 11

Then when I put the cooler express on the CPU 4.8Ghz was an incredibly higher score graphically

I think that the PCIe lanes were also my issue with not getting past 5Ghz and I also have exagerated my hot core.

With all over cores at 0 on Real Temp, Running Cinebench ONE core will raise to 17c and the others are at 0c.

Anyway, It appears that with liquid cooling and a decent amount of voltage the PCIe lanes are throttling maybe to allow the CPU to remain cooler.

And with the chiller hooked up they just open right up.

Anyone think there is anything about this or am I nutso?


Here is some Cinebench at 4.9 on the chiller

337
Edited by abeeftec - 12/2/11 at 8:21pm
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