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Trying to Push Xeon X5675 Past 4.3GHz

Discussion in 'Overclocking & Cooling' started by RickyRozay, Jul 15, 2017.

  1. RickyRozay

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    Hello!

    ASUS P6T Deluxe V2 + Xeon X5675. Stock is 3.06GHz, I'm currently at 4.3GHz.

    [​IMG]

    [​IMG]

    These are my current settings, I am stable to play Battlefield 4 etc just fine.

    I can boot to Windows at 4.5GHz on 1.3v no problem, but it's not stable when gaming. Really I want to push this as far as I can, but I've gone as far as I can alone and now need some help.

    I read the X58 OC guide here on TPU, and I changed some voltages beyond their defaults and for some reason that gave me BSOD?

    So I leave everything on auto aside from Vcore, and for the most part it seems to work.

    Any help would be appreciated, thanks :)
     
  2. DRDNA

    DRDNA

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    Last edited: Jul 15, 2017
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  3. Durvelle27

    Durvelle27

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    Good luck

    I I had the same board and I just barely achieved 4.6GHz
     
  4. oinkypig

    oinkypig

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    Unless the amount of computing is done by someone else, something that..... You can always try setting every value in bios rather than leaving it alone on auto. Start with an increase in cpu voltage. First setting it to auto and enter windows to find out the whereabouts value for every over clock above 4.3Ghz and it should return a stable enough cpu voltage "Mostly" everytime.. Beware the cursed QPI voltage
    4.3Ghz-1.3v next step is 4.8Ghz-1.35v
     
    Last edited: Jul 15, 2017
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  5. FilipM

    FilipM

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    Dude, UCLK at 4800MHz with Auto QPI voltage? Oh god...change that immediately!
     
  6. jboydgolfer

    jboydgolfer

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    i think @CAPSLOCKSTUCK has Exp with OC'ing these Xeons.....i cant be sure simnce i cant keep track of all the different x5675,x5459,blah,blah...
     
  7. Durvelle27

    Durvelle27

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    Does your board have stock BIOs
     
  8. CAPSLOCKSTUCK

    CAPSLOCKSTUCK Spaced Out Lunar Tick

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    @RickyRozay

    sorry pal i completely forgot you wrote to me before. I hope the American trip went well.

    i would be dropping the multi and upping the busspeed. 1.4 volts should be more than enough for 4.6ghz

    @Knoxx29 had X5675 recently but on an SR-2
     
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  9. RickyRozay

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    What's wrong with that?

    I thought the highest multiplier was better, because the BCLK was the limiting factor? Or am I completely wrong.

    What benefit do I get if I drop to 23x with a higher BCLK?
     
  10. CAPSLOCKSTUCK

    CAPSLOCKSTUCK Spaced Out Lunar Tick

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    potentially a higher overclock

    heres my X5670


    [​IMG]

    Edit

    this is with ASUS ROG ii extreme though i had your exact mobo and got EXACTLY the same overclocks with all 4 Xeons i compared
     
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  11. RickyRozay

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    So you think I should leave everything on auto, and put the clock as high as I can? What software should I use to find out the voltages in Windows?

    That's a decent overclock :) And okay, that's promising! So I should drop the multi do 21x, and keep everything else the same?
     
  12. CAPSLOCKSTUCK

    CAPSLOCKSTUCK Spaced Out Lunar Tick

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    Leave all volts on auto to start.

    Just experiment with the multi and bus.......it might take 10 or more restarts to get it to even load Windows let alone run any benches.

    try 23 x 200 for 4.6ghz and go from there.

    remember, this is trial and error
     
  13. FilipM

    FilipM

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    First off, the IMC can safely handle up to 1.35V on these chips. Any higher than that can (might) cause damage. 1.35V usually yields around 3.4-3.8GHz on the Uncore speed.


    I keep uncore speed at 2 x RamSpeed + 1 (and that works best in 90% of the cases on any X58 chip)


    Uncore speed at 4800 is limiting your overclock and makes you put crazy voltage in. In other words, you will kill it.


    PS. This is mine


    [​IMG]
     
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  14. Durvelle27

    Durvelle27

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    The P6T has a issue within the BIOs which limits the TDP and if you surpass the TDP it will throttle like crazy. I had the same issue and could never get above 4.3GHz on a X5650. The fix I found was flashing a custom BIOs which allowed you to disable the TDP limit. All X58 boards support this feature but the P6T

    [​IMG]


    [​IMG]


    [​IMG]
     
  15. FilipM

    FilipM

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    I avoid the TDP issue by not using the turbo multiplier. I have also crossflashed my P6T Deluxe V2 to a P6X58D Premium, which gives me much quicker boot times, much better fan control (no need for fan controllers) and offset voltage, meaning my chip downclocks and lowers voltage on idle as well.
     
  16. Durvelle27

    Durvelle27

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    I crossflashed my old P6T V2 with the P6T Workstation BIOs
     
  17. FilipM

    FilipM

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    PCI Sound card would not work with that one, and I also had random BSOD's ...weird
     
  18. oinkypig

    oinkypig

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    1101.png finally my x5675 scoring above 1100 in cne15:peace:
     

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    Last edited: Jul 15, 2017
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  19. agent_x007

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    I recommend going 3,2-3,6GHz on Uncore.
     
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  20. mastrdrver

    mastrdrver

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    How in the world do you keep your temps down with that kind of voltage?

    Also how to get over 200 blck cause i thought that was the limit?
     
  21. Durvelle27

    Durvelle27

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    Water easily keeps the temps under raps
     
  22. jaggerwild

    jaggerwild

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    Prior to that make sure you have the latest Bios from Asus.com for your mother board
     
  23. agent_x007

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    You need a good board and enough ICH and QPI Voltage (QPI slow mode is your friend) :)
    I did a bit over 220MHz on my Rampage II Extreme and 32nm Xeon : https://valid.x86.fr/s6dn4i
     
  24. Knoxx29

    Knoxx29

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    These are my settings for 4.5 (stable ) but as @CAPSLOCKSTUCK said that is on a SR-2
    20161007_224559.jpg 20161007_224614.jpg 20161027_225347.jpg 20161027_225415.jpg
     
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  25. RickyRozay

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    23 x 200 1.35v (All others AUTO) = 4.6GHz = Failed POST
    [DRAM] 1603MHz
    [UCLK] 3408MHz
    [QPI] 7218MT/s

    23 x 190 1.35v (All others AUTO) = 4.37GHz = Crashed Loading Windows
    [DRAM] 1523MHz
    [UCLK] 3237MHz
    [QPI] 6857MT/s

    21 x 200 1.35v (All others AUTO) = 4.2GHz = Failed POST
    [DRAM] 1603MHz
    [UCLK] 3408MHz
    [QPI] 7218MT/s

    21 x 190 1.35v (All others AUTO) = 3.9GHz = Crashed Loading Windows
    [DRAM] 1523MHz
    [UCLK] 3237MHz
    [QPI] 6857MT/s

    25 x 172 1.25v (All others AUTO) = 4.3GHz = Stable
    [DRAM] 1724MHz
    [UCLK] 3621MHz
    [QPI] 6208MT/s

    25 x 184 1.35v (All others AUTO) = 4.6GHz = Boot to Windows, Unstable Gaming
    [DRAM] 1844MHz
    [UCLK] 3874MHz
    [QPI] 6641MT/s

    25 x 180 1.35v (All others AUTO) = 4.5GHz = Stable
    [DRAM] 1804MHz
    [UCLK] 3789MHz
    [QPI] 6496MT/s

    I don't really understand these results. It seems like everything less than a 25x multi just gets a big fuck you.

    4.5GHz is okay, but I'd love to get more. Any thoughts?
     
    Last edited: Jul 16, 2017 at 1:39 PM

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