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Thread: Haswell Overclocking Guides / Results




  1. #341
    Acebmxer's Avatar
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    Default Re: Haswell Overclocking Guides / Results

    so lower problem size ie not all memory tested higher gflops even with 100mhz slower.

    Edit memory timings are different too.
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  2. #342
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    Default Re: Haswell Overclocking Guides / Results

    So hot.. so damn hot..


  3. #343
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    Default Re: Haswell Overclocking Guides / Results

    Yeaow! I don't think I'd be running that version of linx without better cooling.

    Even delidded mine hits 84c with the newest Linx/all memory used.

    Haswell Overclocking Guides / Results-x46_1-26-jpg
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  4. #344
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    Default Re: Haswell Overclocking Guides / Results

    How do I determine the optimum uncore relative to CPU core? Currently testing CPU core=42 (VCore=1.13V) with Uncore=38, but don't know the difference if I set uncore differently. Shouldn't it be the same as my CPU core=42 too, so as not to bottleneck? Currently at 120 Gflops only on air, w/ max 85C.
    Last edited by sherpa25; 09-06-2013 at 11:07 PM.
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  5. #345
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    Default Re: Haswell Overclocking Guides / Results

    Quote Originally Posted by sherpa25 View Post
    How do I determine the optimum uncore relative to CPU core? Currently testing CPU core=42 (VCore=1.13V) with Uncore=38, but don't know the difference if I set uncore differently. Shouldn't it be the same as my CPU core=42 too, so as not to bottleneck? Currently at 120 Gflops only on air, w/ max 85C.
    You seemed to understand back at this earlier post:
    Haswell Overclocking Guides / Results

    Uncore does not need to be same as core speed.
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  6. #346
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    Default Re: Haswell Overclocking Guides / Results

    Quote Originally Posted by boondocks View Post
    You seemed to understand back at this earlier post:
    Haswell Overclocking Guides / Results

    Uncore does not need to be same as core speed.
    Thanks boondocks. Actually, the only thing I understood was that at stock uncore (i.e. 34 with my CPU) OC's automatically and that it has twice the bandwidth as CPU core, however GB TweakLauncher only reports uncore=40, so I'm not sure if this value matches best with my CPU core of 42. How do i determine what value matches CPU core?

    Also, in a later post, @sin suggested to Alxx 'why not to set it to a fixed 38', which is why I am now confused. Just like to know how uncore would really function relative to CPU core and how to match it to my CPU core.

    Update: Here are 2 outputs, the max Gflops I can get with my setup. First with uncore at stock 34 (OC'g to 40), and the second at fixed 37. I don't see much difference between both. The other uncore fixed values had bit lower gflops.
    At stock 34 uncore:


    At 37 uncore:


    Anything I can still adjust that would perhaps bring better results w/o raising temps, or is this the best I can do? Thanks.
    Last edited by sherpa25; 09-09-2013 at 05:59 PM. Reason: corrected
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  7. #347
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    Default Re: Haswell Overclocking Guides / Results

    A few minutes with the newest P95 beta 2.
    I can't believe how much hotter the one core is than the rest, but somehow I doubt replacing the TIM under the IHS will do any good......
    Haswell Overclocking Guides / Results-p95_28-jpg
    Last edited by boondocks; 09-12-2013 at 08:11 PM.
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  8. #348
    stasio's Avatar
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    Default Re: Haswell Overclocking Guides / Results

    Strange that your 4th core is almost 20C different then highest core (2nd) temp?
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  9. #349
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    Default Re: Haswell Overclocking Guides / Results

    Quote Originally Posted by stasio View Post
    Strange that your 4th core is almost 20C different then highest core temp?
    I know. Not sure if it's because of the delid, or what. I've never had one skew that far before on any kind of mount.
    On my 3770K the second and third core were about the same after delidding.
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  10. #350
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    Default Re: Haswell Overclocking Guides / Results

    Yea,usually delidded chip have closer temp with cores (less difference).....

    my undelidded with new LinX 0.6.5-11.1.0 Linpack.....HOT !!!.....but GFlops is very good:

    Haswell Overclocking Guides / Results-4c-linx-11-1-0-jpg

    Seems new Prime95 28.1 Build 2 is going also up with temp.
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