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[OFFICIAL] == Sandy Bridge-E == Overclock Leaderboard & Owners Club == - Page 31

post #301 of 2291
Quote:
Originally Posted by abeeftec View Post

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

Im still amazed at temps people can pull..... i want my cpu frozen...... hahah
    
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post #302 of 2291
i am guessing its TDC and not TDP throttling, TDC exceptions would damper performance heavily and not show a change in frequency, less current=less work.
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post #303 of 2291
ehh if I only could mount my ss i would check today:(
post #304 of 2291
screenshot

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post #305 of 2291
I have a massive voltage bump going from 4.5 to 4.6. At 4.5Ghz i can run 1.267v all day long but for 4.6 i need 1.3v+
post #306 of 2291
if i want to go from 4.5 to 4.8 i have to bump the volts from 1.35 to 1.525.... lads maybe its me doing something wrong or missing a setting, its strange it would just wall at bang on 4800mhz dont you think? any one here using an msi mb? or even other ones can you post your exact bios setting for 5ghz or 4.9?
post #307 of 2291
My 3930k is at work Khalam, I will post you my settings on monday morning from my sabertooth board. Treat it like SB pretty much and you should be good. That's what I did and it worked like a charm. I think the Asus bios is working a little better than others right now. I hated my msi when SB came out then the got better.

Edit: I posted my bios settings from my M4E in " [Help] 2600k Failing P95 - Page 2 " thread on page 2. That's pretty close to same things set on SB-E setup, except I haven't lower Cpu PLL at all. That I left on auto for SB-E so far.
Edited by Hambone07si - 12/3/11 at 6:05am
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post #308 of 2291
damn ive did everything the way i always did with sb and ive been able to run up to 5.8ghz on those settings on 2600k:( now only thing left for me is to hope its just the bios and needs a newer one (MSI is gone send me there new beta on monday so fingers crossed;)
post #309 of 2291
That may be all you need. I was stuck at 4.7ghz on my msi and got fed up and grabed a Deluxe and my chip went right up to 5.3ghz.
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post #310 of 2291
smile.gif im full of hope now;) btw just run sli 580s at 4.8ghz with my gpus at 970 (i can run sli at 1000 if need be:) and i scores over 200pt more in 3d11.... i dont want to imagine what i could get with 5.2-5.3;)
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