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Uncore OC

post #1 of 11
Thread Starter 
I decided to get the most out of my Uncore since I just got new and improved memory.

I was wondering what is the best stability test for Uncore.

Currently I have it set at 1.35v and 133x31=4.1Ghz

I have been running Prime95 Large FTTs for a ~2.5 hours so far with no erros, but I was wondering if this is stressing the Uncore enough?

Edit: Just got a 124 so I guess its working gonna try the 29 multi.
Edited by tconroy135 - 1/24/11 at 9:30pm
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post #2 of 11
Large FFTs is a pretty good test for uncore, so are other heavily threaded, memory intensive programs. LinX/IBT are good choices as well.

4.1GHz uncore is pretty impressive, I'm surprised it's stable.
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post #3 of 11
the uncore has to do with the memory so wouldnt a heavy memory stressing program mixed with prime95 be best for stress. id use a small FFT prime95 run, and load your memory up with memtest at the same time.
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post #4 of 11
Thread Starter 
Quote:
Originally Posted by Blameless View Post
Large FFTs is a pretty good test for uncore, so are other heavily threaded, memory intensive programs. LinX/IBT are good choices as well.

4.1GHz uncore is pretty impressive, I'm surprised it's stable.
It wasn't stable at 4.1 @ 1.35v(And I don't want to go above this)

I pushed it down to 29 multi. I wonder if I could use the 30 multi ever since I first used an I7 I have never used an even multi .
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post #5 of 11
I've yet to see a Gulftown (aside from those with extreme cooling) be 100% stable with more than about 3.4GHz uncore. My 970 tops out at around 3.3GHz with ~1.35v and adding voltage past that point rapidly decreases stability. HT disabled might be improving your uncore OC though, as only 6 threads could be hammering the L3/IMC simultaneously and I always test with 12.

Uncore isn't as picky about even/odd multipliers as the core is, in my experience.
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post #6 of 11
Thread Starter 
Quote:
Originally Posted by Blameless View Post
I've yet to see a Gulftown (aside from those with extreme cooling) be 100% stable with more than about 3.4GHz uncore. My 970 tops out at around 3.3GHz with ~1.35v and adding voltage past that point rapidly decreases stability. HT disabled might be improving your uncore OC though, as only 6 threads could be hammering the L3/IMC simultaneously and I always test with 12.

Uncore isn't as picky about even/odd multipliers as the core is, in my experience.
Well going on about 11 hours of Large Ftt would you consider this stable?

Edit: Also past 3 runs of IBT on Max.
Edited by tconroy135 - 1/25/11 at 9:10am
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post #7 of 11
@tconroy135

You can try HCI Design Memtest, run as many instances of Memtest as you run threads and load as much ram as possible.

For example, if you run 12 threads and have 5,0GB of free ram > 12 instances with ~416 Mb each.


You can also try y-cruncher, run the "stresstest" and load as much ram as possible.


In my opinion they are both great to test the stability of the IMC.

y-cruncher is a real tough one, not just on IMC but also on the CPU and the ram.

Don´t know what kind of stability you want but run them both for at least 6 hrs.
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by Ghostleader View Post
@tconroy135

You can try HCI Design Memtest, run as many instances of Memtest as you run threads and load as much ram as possible.

For example, if you run 12 threads and have 5,0GB of free ram > 12 instances with ~416 Mb each.


You can also try y-cruncher, run the "stresstest" and load as much ram as possible.


In my opinion they are both great to test the stability of the IMC.

y-cruncher is a real tough one, not just on IMC but also on the CPU and the ram.

Don´t know what kind of stability you want but run them both for at least 6 hrs.
Thanks. I want it to be truly stable, I never really gave the uncore a second thought just set it to twice or 1.5 DRAM, but I want to see what I can get out of it now.
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post #9 of 11
This is noob, But what exactly is the uncore, like what does it do?

Thanks, Sir Overkill.
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post #10 of 11
Quote:
Originally Posted by Sir Overkill View Post
This is noob, But what exactly is the uncore, like what does it do?

Thanks, Sir Overkill.
It is effectively the northbridge, or part of it at least. It controls data links to other components such as the RAM, so far as I understand it.
    
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