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i7 3820: How well does it overclock?

post #1 of 18
Thread Starter 
I will be getting this CPU in a few weeks, was wondering how well people are overclocking them I know the multi only goes to x43, but you have the straps, anyone manage to use the upper end straps? and how much vCore your running etc
     
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post #2 of 18
My friend own a 3820. He runs it at 1.3volts with 125mhz strap and a x36 multiplier. That's 4.5ghz. It runs that allllll day long with no problems. When he's using it really heavy and loading down all the threads, he bumps the volts to 1.35. Could probably do closer to 5ghz at 1.5volts, but he just doesn't see the need.
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post #3 of 18
Thread Starter 
Thanks, I want more reply, as there are mixed opinions everywhere on this CPU
     
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post #4 of 18
Thread Starter 
Anyone else?
     
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post #5 of 18
Great chip.

I'm very inexperienced w/ overclocking. If i'm unfamiliar with a setting... I keep it at Auto :-)

I had a 3820 for a few weeks (was fortunate to have a friend willing to trade me my 3820 + cash for a 3930k).

I overclocked the 3820 by using the BCLK strap. I set it to 125 in the BIOS. turned off speedstep (and i think turbo) and the overclock was to about 4.6GHz or 4.8GHz if I remember correctly. Antec Kuhler 620 cooler... nothing crazy.

The chip is fantastic. I got zero hiccups with just the simple BCLK strap boost. It was awesome! Probably could've done better if I played around w/ more stuff but 1) I'm not advanced, 2) i didn't need much more power to be honest, and 3) i didn't want to push my luck. the 125 BCLK strap was very very stable... my OC never failed. BIOS always posted... windows always started.

Hope this helps. Sorry I can't give more technical insight. Great CPU
post #6 of 18
Thread Starter 
Can I ask what vCore at that speed? I got turned down my the review somewhere that it need 1.63v for 4.6, obviously their chip was a extremely bad overclocker. Can anyone else share their experience? smile.gif
     
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post #7 of 18
http://www.overclock.net/t/1221208/i7-3820-overclock/1580

Come on over and find out. thumb.gif

Its a beast! Little more challenging than socket 1155, and generates a bit more heat. But many hit 5.0 with little issues.

I run 5.0 stable with 1.48v, 4.8 with 1.44v and 4.5 with 1.37v. I also have a costa rica chip which usually dont oc as well as the maylays. Ive seen people at least boot 5.0 with 1.3v with malays. It generates heat between a 2600k and a 3930k.. less if u have HT off. I run 1.00 and 125 straps, never tried 166. I hear 166 is hard across the board but a low bclk might help.

Check out the leader board too. Plenty of 3820s holding their own.

http://www.overclock.net/t/1167939/official-sandy-bridge-e-overclock-leaderboard-owners-club
Edited by Rmerwede - 5/13/13 at 10:01am
post #8 of 18
Quote:
Originally Posted by Rmerwede View Post

http://www.overclock.net/t/1221208/i7-3820-overclock/1580

Come on over and find out. thumb.gif

Its a beast! Little more challenging than socket 1155, and generates a bit more heat. But many hit 5.0 with little issues.

+1 to this, so much info in that thread and so many good clocks.
this chip actually OCs extremely well. i am staying at the 4.3 multi cap though because once you touch the straps you cant use offset, or it doesnt work and i want that feature.
if you have no qualm with manual voltage, then the sky is the limit, or your cooling is with this chip.
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post #9 of 18
Quote:
Originally Posted by PedroC1999 View Post

Can I ask what vCore at that speed? I got turned down my the review somewhere that it need 1.63v for 4.6, obviously their chip was a extremely bad overclocker. Can anyone else share their experience? smile.gif

I kept all additional settings on Auto, or whatever the defaults are to be honest.

I'm not that experienced. I just know it was very easy to get to 4.6 after i learned what a BCLK strap even was! Great chip.


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post #10 of 18
Mine's a bit of a stinker, requires ~1.35v under load for 4.4 and needs a big bump to do 4.5. To be fair I can easily run it at lower voltage for gaming, but I like to aim for overkill when stress testing. I just run it at 4.4 because I have to use 125 strap to go higher (Civ5 didn't like 104.7 BCLK) and that would cause voltage offset to not work properly. Just about everyone else on OCN seems to have better luck with their 3820s though.
Edited by Vonnis - 5/13/13 at 10:58am
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