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Thread: Need suggestions to get to 4 ghz.




  1. #1
    Join Date
    Dec 2009
    Location
    New York
    Posts
    12

    Default Need suggestions to get to 4 ghz.

    ive been trying to overclock my system to 4ghz.. i can get it to post and into windows.. but stability isn't there. I was wondering if there anybody had any ideas to increase stability. I currently run with turbo boost on and my bsclk @ 182 and this is pretty stable.. I have the Qpi set to x36 and my uncore frequency multiplier set to AUTO, but the detected uncore frequency it is running at is essentially 20x. I know breaks the 2x+1 rule since i'm running my memory multiplier at 8x. My vcore is set to normal, and my qpi set to 1.3. My vDram is set to 1.66.

    Any ideas anybody have to get this system stable at 4ghz. Would flashing my bios up to the most current do the trick. I'm a little leary about flashing bios since i dont have any real instability problems associated with anything thats not due to overclocking instability.. all apps stellar etc... Any suggestions would be very much appreciated. Would setting my uncore multi down to 16x or 17x do the trick? ramping up the vcore or qpi do the trick?
    i7 920(D0) @ 3.82Ghz (182x21) 1.214V
    GA-EX58UD3R Rev 1.6 (Bios. FB)
    G-Skill DDR3 (3x2gb)PC1600 (9-9-9-24-1t)
    Saphire Radeon HD5850
    WD Caviar Black 640Gb
    OCZ ModXstream 750W PSU
    Sony Optiarc DVD/CD RW
    Xigmatech Dark Knight

  2. #2
    Join Date
    Feb 2010
    Location
    Birmingham,Great Britain
    Posts
    600

    Default Re: Need suggestions to get to 4 ghz.

    you may need more qpi voltage with 4ghz i would try 1.35 or 1.36 volt,set system performance enhance to standard,and manually set qpi uncore to 17 which is 2xram multi +1,also 1.25000 cpu volts is a good place to start with 4ghz test and lower later if stable
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  3. #3
    Join Date
    Dec 2009
    Location
    New York
    Posts
    12

    Default Re: Need suggestions to get to 4 ghz.

    Is that too much voltage for the Qpi? I think i read somewhere that 1.32 is dangerous and anything higher could fry the board?
    i7 920(D0) @ 3.82Ghz (182x21) 1.214V
    GA-EX58UD3R Rev 1.6 (Bios. FB)
    G-Skill DDR3 (3x2gb)PC1600 (9-9-9-24-1t)
    Saphire Radeon HD5850
    WD Caviar Black 640Gb
    OCZ ModXstream 750W PSU
    Sony Optiarc DVD/CD RW
    Xigmatech Dark Knight

  4. #4
    Join Date
    Feb 2010
    Location
    Birmingham,Great Britain
    Posts
    600

    Default Re: Need suggestions to get to 4 ghz.

    Quote Originally Posted by DocSigma View Post
    Is that too much voltage for the Qpi? I think i read somewhere that 1.32 is dangerous and anything higher could fry the board?
    no its fine,you can use upto 1.5 but you wont need anything above 1.4v ive been using 1.3v qpi for a year now no problems at all,remember to stay within .5v of your ram voltage.....also have you tried my overclock template?? if you drop your bclk to 180 you should be able to run your cpu at the normal voltage setting in the bios(1.18750v) if you have win7 then disable c1e and eist in bios and enable the balanced power saving option in win7,then it will throttle cpu at idle and give fullspeed at load the same as having c1e and eist enabled
    Last edited by warren300; 02-25-2010 at 09:35 AM.
    Gigabyte ex58-ud5 f12 bios
    Intel i7 920 d0 @3.8ghz 24/7-normal cpu voltage 1.18750v/c1e/turbo/multi threading enabled
    Ocz reaper DDR3 PC3-14400 (1800MHz) 3x2gb (OCZ3RPR1800LV6GK) 8-8-8-24-1t-@1.64v-1.3qpi
    Thermolab Baram cpu cooler
    Dual Boot
    1xsamsung 750gb hard drive-win7 ultimate 64
    1xsamsung 750gb hard drive-windows xp pro 32
    Ati x1950 pro gpu
    Logitech X-530 5.1 Speakers
    1050w psu
    Nzxt lexa case
    http://i40.tinypic.com/2z3w377.jpg <=3.8ghz overclock template

  5. Default Re: Need suggestions to get to 4 ghz.

    I run my step C0 with QPI voltage @ 1,52v to get 4000Mhz for months now... watercooling, sure. with a C0, it's a MUST for a decent overclocking


    Johnny
    System Components: Intel i7 920 C0 @ 4,0Ghz; Gigabyte EX58-UD5 (X58-EXTREME F12 BIOS); Sapphire HD5970 2GB OC Edition; Western Digital Blue 500GB; Seagate 7200.12 1000MB; 6GB Corsair 1333Mhz DDR3; DVD-RW LG; Corsair TX750W
    Watercooling System: EK-Supreme Skt 1366 WaterBlock + EK backplate Skt 1366; Kit EK-FB GAX58 WaterBlocks; Aqua-Computer AquagratiX 5970 WaterBlock; 360mm Thermaltake radiator; 360mm BI Stealth X-Flow radiator; Laing MCP355 pump; EK-DDC X-TOP rev.2 Plexi
    Danger Den Plexi E/S 1/2" reservoir; 4x A.C. Ryan UV 120mm; 3x Tacens Ventus PRO ICE 120mm; 2x NoiseBlocker Black Silent XE2 92mm; Liquid Cooling FESER Black; FESER tubing 3/8" ID and 5/8" OD; Enzotech Compression Fittings G 1/4

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