I7 930 D0 @ 4.2ghz with 1.35v vcore

Discussion in 'Die-hard Overclocking & Case Modifications' started by ..VeNoM.., Jan 5, 2011.

  1. ..VeNoM..

    ..VeNoM.. Member Guru

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    Just overclocked my i7 and was wondering what you guys think of my temps and voltages. Vcore: 1.35v QPI: 1.25v PLL: 1.88v IOH: 1.2v ICH: 1.2v RAM: 1.65v.

    Idle temp: high 30's to low 40's
    Prime 95: high 70's

    I'm using xspc water cooling kit with 240rad.

    I could probably reduce my QPI a little but thought 1.25v is pretty good. Anyway looking for your opinion.

    Thanks,

    Todd Smith
     
  2. hallryu

    hallryu Don Altobello

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    Nice temps. Is it a stable OC?
     
  3. ..VeNoM..

    ..VeNoM.. Member Guru

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    Yeah.. Prime 95 8 hours stable. OCCT stable as well of many hours of mechwarrior living legends stable. No crashes, lock Up's or bsod.
     
  4. Matt26LFC

    Matt26LFC Ancient Guru

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    Looks nice, that with HT on too?

    Looks like you got a great system there, however whats with the GTX260? Or you waiting to get a beefy PSU then throw some GTX580 Sli action in the mixer ;)
     

  5. ..VeNoM..

    ..VeNoM.. Member Guru

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    GPU:
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    HT is on mate.

    I have 2 GTX 260's Black editions from XFX. Yeah they are getting old now but don't think the mrs will let me shell out on new GPU's till next Christmas. I have a new PSU lined up in the next couple of months. Gonna go for a coolermaster silent pro 1000w gold which has excellent specs and not too expensive. Apart from that I'm happy with my rig.

    Thanks for your comments mate
     
  6. Veteran

    Veteran Ancient Guru

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    All those settings like kinda spot on,similar to my own,your qpi is low,i think i needed 1.30 for 4.2 and 1.41 for 4.3 fully stable in all stability tests.(Linx,Ibt,Occt,Prime 95)

    i know you have tried occt and prime,you should try Linx on the max memory settings,Linx can find errors in minutes wheras prime can take hours,give it a try and see,but all in all looking good:)

    Edit: My vcore is 1.38 for 4.3 and yours is at 1.35,you may be able to get this a little lower beings as your at a lower oc and a newer motherboard.
     
    Last edited: Jan 6, 2011
  7. ..VeNoM..

    ..VeNoM.. Member Guru

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    Cheers mate and thanks for the info about linx.. I'll bing it tomorrow and download it. I believe QPI is related to the quality of ram? I'm pretty new to x58 so I'm not sure.
     
  8. ..VeNoM..

    ..VeNoM.. Member Guru

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    I have a question about LinX.. Is LinX a Linpack testing program? if so then OCCT Linpack test which I have already done should be the same?.

    Thanks
     
  9. WhiteLightning

    WhiteLightning Don Illuminati Staff Member

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    GPU:
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    my settings are: 1.33250 cpu, 1.66 ram, 1.80 pll , ioh voltage 1.14 ,
     
  10. Veteran

    Veteran Ancient Guru

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    Yes but it stresses your system differently,alot of people on xtremesystems.com swear by Linx more than any other stability testing program.

    You can pass occt and fail Linx in 2 passes,its up to you mate wether you use it or not.:)
     

  11. ..VeNoM..

    ..VeNoM.. Member Guru

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    ok bud, I'll give it a go when i get my new PSU.

    Thanks again,

    Todd
     
  12. kayno1993

    kayno1993 Member Guru

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    GPU:
    GTX280 @ 714/1537/1215
    to be safe i use multiple testing: 3d mark, OCCT, IBT, LinX, Prime 95
     
  13. Barton C++

    Barton C++ Master Guru

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    GPU:
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    I concentrated getting my 4GHz LinX stable (5000MB, 20 runs), and after that I had instability with P95 Blend.

    Blend wants much more IOH and QPI (VTT) volts.

    I only get 4GHz stable (9hr Blend (with a bsod tho) and 20 passes Max LinX) with 1.35vcore..1.375v QPI, 1.22v IOH, 1.82v PLL, 21x191, 1530MHz 8-8-8-24, but doesn't get too hot during stress: 74C on two middle cores
     
  14. kayno1993

    kayno1993 Member Guru

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    GPU:
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    as i have said previously getting to 4.0ghz is nothing worth the damage to the cpu.......
    you will find getting toa round 3.8ghz on a 920 is its threshold......anything past that is not beneficial unless pumping stupid voltages to achieve worthwhile performance....what needs to be looked at is a tuning the ram to even number divisible of the cpu core clock eg: i run my ram @ 1900mhz (half the core clock of 3.8), Qpi is 3800mhz (same as core clock), this heavily reduces latency ad improves stability......hence why i pulled more points then many with 4.4ghz oc's.........

    in short it comes down to how it is tuned
     
  15. FeAr3d

    FeAr3d Member Guru

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    GPU:
    ATI 6970 2GB
    Are you running with HT Enabled?

    1.35v for cpu is ok but try it at 1.3v

    My settings when OC'd at 4.2

    i7 920/Asus Rampage II Gene Overclock @ 4.2 Report


    Motherboard Information

    Name - Asus Rampage II Gene
    Bios Type - AMI
    Bios Revision - 1405
    Bios Date - 09/21/2010


    CPU Information

    CPU - QuadCore Intel Core i7 920 D0
    OC Frequency 4200Mhz (21x200)
    CPU Stepping - D0
    Original Clock - 2667 MHz
    Configure System Performance Settings
    Target CPU Frequency - 4200MHz
    Target DRAM Frequency - 1603 MHz
    Tuning [Gaming]
    Ai Overclock Tuner [Manual]
    OC From CPU Level Up [Auto]
    OC From Memory Level Up [Auto]
    CPU Ratio Status: (Min:12, Max:21)
    CPU Turbo Power Limit [Disabled]
    CPU Configuration
    CPU Ratio Setting [21.0]
    C1E Support [Disabled]
    MPS and ACPI MADT Ordering [Modern Ordering]
    Intel (R) Virtualization Technology [Disabled]
    CPU TM Function [Disabled]
    Execute Disable Bit [Disabled]
    Intel (R) HT Technology [Disabled]
    *Active Processor Cores [ALL]
    *Intel (R) SpeedStep(TM) Technology [Disabled]

    [Esc]BACK TO MAIN MENU

    BCLK Frequency [200]
    PCIE Frequency [100]
    DRAM Frequency [Auto]
    UCLK Frequency [Auto]
    QPI Link Data Rate [Auto]
    DRAM Timing Control
    8, 8, 8, 18, (Auto for the remainder)

    [Esc]BACK TO MAIN MENU

    CPU Load-Line Calibration [Enabled]
    Extreme OV [Enabled]
    CPU Voltage Control [Absolute (VID)]
    CPU Voltage [1.30000]
    CPU PLL Voltage [1.82917]
    QPI/DRAM Core Voltage [Auto]
    IOH Voltage [1.20616]
    IOH PCIE Voltage [1.52431]
    ICH Voltage [1.11341
    ICH PCIE Voltage [1.51106]
    DRAM REF Voltage
    (No Information)

    [Esc]BACK TO MAIN MENU

    Read Post Code From LCD Poster/iROG Control Plus
    Debug Mode [String]
    Keyboard TweakIt Control [Disabled]
     
    Last edited: Jan 8, 2011

  16. ..VeNoM..

    ..VeNoM.. Member Guru

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    Yes I run with HT on and I notice when you had your overclock that HT was off... this may have resulted in your vcore being lower than mine?.

    So far my system is rock solid and I will eventualy test with LinX and my watercooling is keeping my system within spec. I will be ordering a new PSU at the end of the month so maybe I might look in to my voltages more.

    Thanks for your info ;)
     
  17. FeAr3d

    FeAr3d Member Guru

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    GPU:
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    Yes HT is off and don't see a benefit with it on except it helps keep my room warm during the winter months. Video conversions saw just a couple of seconds quicker. Not worth the extra heat and voltage when I'm at 4.4GHz.
     
  18. hallryu

    hallryu Don Altobello

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    Just done a run with mine @4.2GHz HT off.

    [​IMG]
     
  19. Veteran

    Veteran Ancient Guru

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    Good stuff mate:)
     
  20. hallryu

    hallryu Don Altobello

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    Just been doing some serious tweaking with HT off and managed to get down to 1.30625v (Bios) & 1.280v @ 4.2GHz. Max temp IBT 69C. Only 5 passes so far, more tweaking to be done but 3-5C drop in temps.

    7000 posts up! :rock:
     

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