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Thread: Core i7 4Ghz Club & Overclocking Guide

  1. #2801
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    You need to tell us what type of your watercooling setup. I see you listed in your specs as dual rad. Is it one dual 120mm rad for the entire system?

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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by Deton View Post
    You need to tell us what type of your watercooling setup. I see you listed in your specs as dual rad. Is it one dual 120mm rad for the entire system?
    The loop is only connected to my CPU and the two GPU's.
    Since making the previous post, I've narrowed down the problem I was having with lockups to something unrelated to the overclock, so the overclock is still stable at 1.35v, but shouldn't it be possible to have it running on lower voltage, especially on water?

  3. #2803
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by SR666 View Post
    shouldn't it be possible to have it running on lower voltage, especially on water?
    No, each chip behave differently. However, a good watercooling system also help with the overclocking but since you can't specific your Waco then I can comment much on that area.

    If you want to keep the voltage lower then disable the HT.

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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by Deton View Post
    No, each chip behave differently. However, a good watercooling system also help with the overclocking but since you can't specific your Waco then I can comment much on that area.

    If you want to keep the voltage lower then disable the HT.
    Thats cheating though XD

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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by SR666 View Post
    My temperatures are too high at that voltage for my tastes and I am trying to reduce them (I have the CPU on the same loop as two GTX580's, so I know it's a contributing factor), the cores Idle at ~45c, and under full gaming load (With GPU load as well), it gets to ~80c or so, so as I said, a bit too high for my taste.
    I'd appreciate any advice you can give me.
    Old sub-thread, so you may never see this response ... but here goes anyway ...

    As Deton remarked, the amount of voltage needed to stabilize an overclock will vary from chip to chip, so you might not be able go lower than 1.35v. That being so ... since your gaming temperatures are too high, that implies the need to rethink your cooling solution; your combined heat level is just too much with the CPU and GPUs all in the same cooling loop. Perhaps switch to cooling the CPU separately from the GPUs.

    To put things in perspective, you are seeing gaming temps that i7 920 folks generally view as being within the cautious maximum range (80-85c) for fully-loaded testing via LinX / Prime95. Ideally, you want to keep your gaming temps below 67.9c (Tcase MAX) CPU sensor / 73c (Tjunction) Core sensor. Otherwise you risk degrading the chip, making it eventually unstable at otherwise stable settings, and shortening it's lifespan. As an example, my system is mid-70s under maximum load, and generally in the 50s while gaming. Would be good to get yours down into the 60s at least if possible.
    Last edited by ZeroChill; 29-07-2013 at 19:33.
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  6. #2806
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Hello everyone I know this is a very old thread but this is my first post here. I really enjoyed pouring through this post and had a great read. I'm using an intel i7 950 on a sabertooth x58 with 6gb 1866 ram.

    I ran these settings to get to 4ghz no sweat with my h50 cooler with push and pull setup. Core temp was idling at 38c and under load was around 70c. I am actually scoring lower in doom 3 benchmark at 4ghz and my fps in battlefield 4 are 30 fps lower while it has this weird freezing/bending lag going on that isn't network related. When I return to default bios it runs just fine. Any idea why I might be getting this kind of hang up in FPS games? The OS boots faster and overall seems quicker with desktop tasks along with not crashing. Any ideas would be greatly appreciated?

    So essentially I just used the OC settings from all of Deton's original posts (thanks Deton! I learned A LOT!)about the i7 920 list on the first page with 20 cpu multi instead of my stock 23 on the i7 950. Not sure how much of a difference that might make? This is my first attempt at 4ghz but something just feels off. My video card is also a gtx 770 not oc'd.

    bclock 200
    cpu multi 20
    qpi multi 18
    uncore multi 16
    cpu clock 4000
    qpi clock 3600
    uncore clock 3200
    mem clock ddr3-1600
    speedstep enabled
    turbomode disabled
    qpi link data rate 7218MT/s
    uclk frequency 3208MHz

    cpu voltage 1.35000
    cpu pll voltage 1.96
    qpi/dram core voltage 1.35000
    DRaM bus voltage 1.66
    load-line calibration enabled
    cpu differential amplitude at 800mV
    PCIE spread spectrum disabled

    cpu ratio settting auto
    c1e support disabled
    hardware prefetcher enabled
    adjacent cache line prefetch enabled
    intel virtualization tech disabled
    cpu tm function disabled
    execute disable bit enabled
    intel ht technology enabled
    active processor cores "all"
    a20m disbaled
    inte speedstep tech enabled
    intel turbo mode tech disabled
    intel c-state tech disabled

    Anything else was set to auto..

    Thanks for any help!! I'd love to run this at 4ghz with confidence!
    Last edited by utah_mike; 04-11-2013 at 19:27.

  7. #2807
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Have you test your OC stability?

    You can use Geekbench 3 to benchmark your CPU http://www.primatelabs.com/geekbench/download/windows/
    A
    ny FTP benchmark is strictly dedicate for GPU benchmark.

  8. #2808
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Ok great! Thanks Deton! I haven't tested it with anything other than games so I'll use geekbench 3 and see how it does and let ya know. Thanks again!

  9. #2809
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    I used Geekbench 3 to benchmark my CPU. I ran it the first time at default speeds 3ghz and then at 4ghz. 3gz the score at single was = 2235 multi = 8613 and at 4ghz it was 2650 10633.

    My core temp was about 70c under full load. I still run battlefield 4 and it's like you move forward for 3 seconds and then lags, rinse and repeat. At default it runs at higher frames? I am just surprised by this. I always get 300 fps in doom3 timedemo at default speeds and at 4ghz it drops 25%.

    I noticed you mentioned a test for the CPU and it seems to fine with that at 4ghz.
    It also runs 3dmark very well.

    Just boggles my mind why it does this in games. I've never had a problem like this before until I oc'd so it must be something I'm goofing up that's holding this system back in the bios settings. Thanks for your help Deton you rule!

  10. #2810
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    now try playing around with the OC settings; blck vs multi.
    example: 175x23

    trying to find the sweet config for your chip. I don't own the 950 but I hear it loves odd multiplier.

  11. #2811
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Thanks Deton you kickass. I ran it in prime 95 for an hour last night it was about 69c with no h/t and no issues at all. This system is really coming to life since the overclock. I'll start working on the blck vs multi and see how some odd numbers go. So I've hit 4.2ghz and I am curious at what point it will crash now. Thanks again! I wish I had known more about overclocking 10 years ago. You popped my cherry deton. I can see this being a very addictive hobby now. Hell It'll keep me out of the bars lol

  12. #2812
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by utah_mike View Post
    You popped my cherry deton.
    was it good for you?



    Quote Originally Posted by utah_mike View Post
    I can see this being a very addictive hobby now. Hell It'll keep me out of the bars lol
    Then I dare you to get your cherry wet with the WaCo (watercooling), the real water cooling am talking about here.


  13. #2813
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    Thumbs up Re: Core i7 4Ghz Club & Overclocking Guide

    Quote Originally Posted by Deton View Post
    was it good for you?





    Then I dare you to get your cherry wet with the WaCo (watercooling), the real water cooling am talking about here.

    haha! Can't say I've had better! After I burn this 950 up I think my next build is def going to involve some real water cooling. You telling me there's water cooling better than those h50's??? lol That is a sick build! Yo thanks again for the help. Your guide made it a breeze. It's still running like a champ at 4ghz, this weekend I'll see how much further I can take it and try some of those odd numbers u were talking about. I'll have to bounce some ideas off you when I'm ready to get some real water cooling rockin!

  14. #2814
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    If you have the advance watercooling build then you can put the 950 on turbo mode which it will give you 4.2Ghz when needed. BTW, don't try it with the H50 though.
    The reason your temps are ok because you have HT disable.

    I have my 920 at 4.2Ghz with HT on and the load temp is under 70C.

  15. #2815
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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Hey Denton.... been awhile but I'm back.
    Had to put the PC away for some time.
    Pulled it out of storage, gave it a good cleaning, and I'm ready to get back to this overclocking.
    Figured since I have a 950 as well, this might be a good place to post.
    Starting from the beginning again, with these settings:


    BASE OC
    AI Overclock Tuner XMP
    CPU Ratio 20
    Intel Speed step tech Disabled
    BCLK Frequency 200
    PCIE Frequency 100
    DRAM Frequency DDR3-1603MHz
    UCLK Frequency AUTO
    QPI DATA Link Rate AUTO
    CPU Voltage 1.33750
    CPU PLL Voltage AUTO
    QPI/DRAM Core Voltage 1.33750
    IOH Voltage AUTO
    IOH PCIE Voltage AUTO
    ICH Voltage AUTO
    ICH PCIE Voltage AUTO
    DRAM Bus Voltage 1.62
    DRAM DATA Ref CHA AUTO
    DRAM CTRL Ref CHA AUTO
    DRAM DATA Ref CHB AUTO
    DRAM CTRL Ref CHB AUTO
    DRAM DATA Ref CHC AUTO
    DRAM CTRL Ref CHC AUTO
    Load-line Calibration Enabled
    CPU Differential Amplitude AUTO
    CPU Clock Skew AUTO
    CPU Spread Spectrum Disabled
    IOH Clock Skew AUTO
    PCIE Spread Spectrum Disabled
    ADVANCED
    CPU Ratio Setting 20
    C1E Support Disabled
    Hardware Prefetcher Enabled
    Adjacent Cache Line Enabled
    Intel Virtualization Enabled
    CPU TM Function Enabled
    Execute Disable Bit Enabled
    Intel HT Technolodgy Disabled (if enabled, I get only 2 cores and 4 threads)
    Active Processor Cores All
    A20M Disabled
    Intel Speed-step Disabled
    Intel C-STATE Disabled

    Ran Burn test for 20 passes on High, all good
    Ran Prime for 1 1/2 hrs, no errors
    Highest Temp for both was 65C

    If you wouldn't mind looking things over and let me know where to go next....
    I would appreciate it.

  16. #2816
    OC Jedi Master

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    Default Re: Core i7 4Ghz Club & Overclocking Guide

    Everything seem in place, you can try to fiddle with the Vcore and DRAM voltage to see how low you get.

    I don't understand why you have only 2 cores when HT enabled?

    You have H20, it's capable to handle the chip with HT enable.

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