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Thread: Let's fine tune my OC

  1. #1
    ROG Guru: Yellow Belt Affinitii +10
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    Let's fine tune my OC

    Okay so I'm at 4.7 max load likes to put 1.448vcore -- offset puts it at a +0.080 I belive. LLC is Medium, 160% on the power control.

    I've been pretty basic with the overclock, leaving XMP and everything else on auto, VCCSA etc all auto -- but I wonder if I can lower my CPU vcore if I find the sweet spots on these other settings.


    Any suggestions? where should I start with all of my settings? anything lower than +0.080 so far has resulted in BSOD's in Windows 8 running IBT (or IBT spitting out a FAILED message a few passes in).

  2. #2
    ROG Guru: White Belt Baalberith_NL +20 Baalberith_NL's Avatar
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    CPU?
    Motherboard?
    Rest of hardware?

    will be difficult for ppl to assist if they dont know the basic hardware being used.
    Intel Core i7 3960X
    Asus Rampage 4 Extreme
    32GB Corsair Vengeance 1866 Reds
    Corsair H80
    Corsair AX1200
    2 x M4 Crucial 128GB
    3 x 2TB WD Black
    2 x Asus GTX TITAN
    CoolerMaster HAF-X
    Dell U3011

  3. #3
    ROG Guru: Diamond Belt Zka17 +150 Zka17 +150 Zka17's Avatar
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    Yeap, more details about your hardware would be helpful... also, would be nice to know your temps (ambient and CPU cores)...

  4. #4
    ROG Guru: Yellow Belt Affinitii +10
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    Rampage IV Extreme
    32GB Ram (2133Mhz)
    Mushkin Chronos Deluxe 240GB SSD
    Agility 3 120GB SSD

    2x2TB 7200RPM HDD's in RAID0

    HAF X Case with an H100


    Max temps at the existing settings (maxes out at 1.448-1.562 I think?) under full IBT load is 84C on the package, as low as 74C on a few of the cores.

    Ambient room temp is about 24C

  5. #5
    ROG Guru: White Belt Baalberith_NL +20 Baalberith_NL's Avatar
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    What processor ur using ?
    Intel Core i7 3960X
    Asus Rampage 4 Extreme
    32GB Corsair Vengeance 1866 Reds
    Corsair H80
    Corsair AX1200
    2 x M4 Crucial 128GB
    3 x 2TB WD Black
    2 x Asus GTX TITAN
    CoolerMaster HAF-X
    Dell U3011

  6. #6
    ROG Guru: Yellow Belt Affinitii +10
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    oof sorry forgot to include that. 3930k

  7. #7
    ROG Guru: Brown Belt HalloweenWeed +75 HalloweenWeed's Avatar
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    Start by setting VCCSA 1.25V. That may allow you to reduce your Vcore, if you're lucky. And mine needed CPU PLL 1.9V. YMMV.
    i7-3930K; Asus RIVE; G.SKILL Ripjaws Z 4x4GB DDR3 1866; MSI 7870 2GD5/OC; Crucial M4 SSD 256GB;
    Corsair 1000HX; Corsair H100, 4x Excalibur 120mm PWM CPU Fan p-p, AS5; SB X-Fi Titanium Fata1ity Pro;
    Dell U2412m IPS 1920x1200; Cooler Master HAF 932 case; Tripp-Lite OMNIVS1500 UPS fully Line-interactive.
    (EVGA site: ) And I have a second (wife's) computer, Eve.

    Overclocking is useless to me if it is not rock stable.

  8. #8
    ROG Guru: Yellow Belt Affinitii +10
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    She doesn't seem to want to budge.

    I never go over 87C on the package under full IBT, but the voltage USED to max at 1.448 and is now hitting 1.452 for osme reaosn, but is stable. Are the volts too high for 24/7 usage? Using offset +0.85 Medium LLC 120%. I know my 4.5 was stable about 1.36-1.38vcore under full load. I cannot seem to get 4.6 under 1.41 vcore, but I shave off about ~5C on the full package by having it around 1.41


    thoughts/suggestions? What vcore should I aim for 24/7? More CPU room the better as I use most of it regularly for 8+ hours a day.

  9. #9
    ROG Guru: Yellow Belt Affinitii +10
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    Here's my results:

    zs7F6aN.png

    Starts off with gflop around 137, goes up as high as 141, bounces between 137 and 141 a few times near the end.

    Full 25 results (I ran this test on HIGH)
    138.9362
    136.3120
    138.3757
    139.5094
    139.7550
    140.8407
    140.8085
    140.9836
    134.2727
    137.4180
    140.5990
    140.6741
    140.8631
    140.3672
    141.1078
    140.3197
    140.9097
    138.0824
    137.2108
    138.2748
    140.9983
    137.9379
    140.9727
    139.7604
    141.1702


    Maybe someone who understands what those values can help me out a bit more :P Are these alright results?
    Last edited by Affinitii; 01-27-2013 at 11:03 PM.

  10. #10
    ROG Guru: Orange Belt Melting Point 0
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    I wouldn't want my CPU getting that hot for 8 hours a day. You're about 4°C away from TjMax. I'd drop it to 45 bump the bclk up a bit. 102 will get you to 4590. If you want to go further than that on a 24/7 system, you'll need more cooling than a H100 can typically provide.
    Motherboard: RIVE (3602 bios)
    CPU: Intel 3930K @4646MHz
    OS Drive: 2 X Samsung 840 PRO (Raid 0)
    Storage Drive: 2 X 1.5TB WD Caviar Black RAID 0, 2 X 3TB WD Caviar Red, Kingston V100 256GB SSD
    Memory: 64GB G.SKILL Ripjaws Z (F3-12800CL10Q2-64GBZL)
    GPU: Gigabyte GeForce GTX580 @795MHz - 1536MB GDDR5
    PSU: OCZ ZX1250
    Cooling: Phantek PH-TC14PE
    OS: Windows 7 Ultimate x64. (EUFI)

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