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Overclocking 9900K @ 5Ghz 1.2V guide Gigabyte Z390 Master

Discussion in 'Hardware' started by true_gamer, 20 Nov 2018.

  1. true_gamer

    true_gamer Well-Known Member

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    I feel when it comes to overclocking, people think they should increase as many settings as possible, which produces more heat from the motherboard and CPU, which is not great, especially for a 24/7 OC.

    I use an Offset and speed shift for when I don't need all the performance (Typically when web browsing, so this will also help with electricity costs, and also prolonging the life of your CPU, and your Motherboard VRMs, Phases, etc.

    So most guides will show you to use a set voltage and to turn off any power management, as well as running high currents and high load line calibrations etc.

    So by doing this, my 9900K @5Ghz would be stable at 1.26v and will hit up to 85c+ with AIDA stress test using a AIO H100i. - then the motherboard VRMS hitting high temps, and generally stressing the system.

    Now we will do the opposite here, and help keep everything cool and quiet.

    Adjust all the settings like so.

    (VAXG Phase Control only has options: Auto - High Performance - Extreme Performance.)

    [​IMG]

    Here we will set the CPU core to normal which will unlock the Dynamic Vcore setting. (Depending on your CPU, you may need to increase by +0.010v till your system is stable.

    I have mine set at 0.000v

    [​IMG]

    Set the CPU ratio to 50
    Set your Dram speeds to what your kit is, unless you know what is a stable overclock for your Dram
    Then we will head into (Advance CPU Core settings).

    [​IMG]

    Scroll down to near the bottom and enable Intel Speed Shift technology (Speedstep)

    [​IMG]

    Save and exit. Now run a stress test.

    Stable at 5Ghz with 1.2V - VRMS not peaking 40C - So we have a nice solid cool n quite overclock, which is more efficient than the stock settings with turbo.

    [​IMG]

    And when you don't need all that power, the CPU frequency and Voltage drop off.

    [​IMG]

    You're welcome. :)
     
    Last edited: 21 Nov 2018
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  2. The_Crapman

    The_Crapman Don't phone it's just for fun.

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    When I can sit at my desk again I need to put a proper overclock on my cpu. I think it's on auto voltage :worried: Will be coming back here!
     
  3. Thewelder

    Thewelder Member

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    Hello all,
    @true_gamer ....awesome post with get right to it cpu oc settings.I applied these to my setup tho at a modest 4.5ghz.I was curious if u could reply in this post with your ram (brand,# of sticks,voltages,timings).
    Thank you again.
     
    Last edited: 29 Nov 2018
  4. true_gamer

    true_gamer Well-Known Member

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    Hi @Thewelder - I have 16GB (2x8GB) 3000MHz CL14 G.Skill Trident RGB DDR4 - These run at 3200MHz 14 14 14 34 @ 1.35v.
     
  5. Thewelder

    Thewelder Member

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    My setup
    nice man.
    when u have time if u could please post the changes u made with your master mobo setting your ram.I dont like the bios pages gigabyte made(any bios) :l
    thank you.
     
  6. Thewelder

    Thewelder Member

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    my setup :eek: 20181112_123213-1-1.jpg 20181114_124258-1.jpg 20181112_122726.jpg 20181114_133834-1-1.jpg
     

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  7. davidm71

    davidm71 New Member

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    Hi,

    I overclocked the old fashion way and needed 1.325v to get stability on my 9900K. If I was to go dynamic what kind of an offset would you guys recommend? Certainly not 0.01v. Should I try 0.10v? Also what do you think of settings AC DC Loadlines?

    Thanks
     
  8. true_gamer

    true_gamer Well-Known Member

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    I would try 0.100v and go up from there, as 0.125v with a default vcore of 1.2v should give you 1.325v.

    Depending on your motherboard, try with the lowest possible LC.
     
  9. Sentinel-R1

    Sentinel-R1 Chaircrew

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    If you want to get an idea of where your vcore offset should be roughly, leave your OC as it is just now and put it under a torture test whilst monitoring the vcore with another program. Have a look at how much the vcore droops between rest state and full load and start with that figure. So if your vcore is drooping to 1.285v under load, that's a vdroop of 40mv, set it to that and test/monitor again then adjust as necessary.

    As for LLC, as TG says it depends on your board. I normally end up with the second most aggressive, so my board is set to 5 out of 6 (same with my previous build too), which actually keeps vdroop to within 1mv of the offset vcore under load. Your mileage may vary and two identical boards can droop at differing rates.

    Test and adjust is key. No two identical CPUs or mobos are actually identical.
     
  10. foxmino

    foxmino New Member

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    Thanks for the guide...this brought my temps down 20c
     
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  11. TheGodfather

    TheGodfather New Member

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    Man i am having the hardest time getting my cpu to 5ghz :/, this method was by far the closest i got to it, i got a 480 radiator dedicated just for the cpu...:/...cant get it stable....temps range in the 90s is that normAL?
     
  12. TheMadDutchDude

    TheMadDutchDude The Flying Dutchman

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    That is normal, yes.

    What CPU voltage are you pushing?
     
  13. true_gamer

    true_gamer Well-Known Member

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    @TheGodfather - Sounds to me like you haven't got a great chip.
    So why not try 5GHz on four cores, and say 4.9GHz on the other four?

    If that still isn't stable, then try 4.9GHz all cores. If that is stable, then you can start increasing each core to 5GHz until you find the sweet spot. :)
     
  14. OmenRIP

    OmenRIP New Member

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    Thank you for posting your overclock procedure! I followed your directions and I’m now 5Ghz on all 8 cores! I got into Windows and ran Prime95 for 3 hours; all my cores at 5Ghz were stable!

    But - and this is a big but - I was reading over your post again, and I realized that I skipped most of the changes you made on your first screen print (the VAXG one). I only made changes on the first 3 lines, (AC/DC, VCore loadline, and VAXG loadline) then the PWM and VAXG Phase Controls. All the other ones that you have set to Normal I left at their defaults.

    After realizing my mistake, I went back and make each value the same as yours. After doing that, I restarted, and the bios crashed before getting into Windows.

    Now, I’m a complete noob when it comes to overclocking. Naturally I’m at a loss to explain as to why my partially correct settings it worked.

    I hope you’re still reading this thread. If so, maybe you could explain to this noob how my noob mistake worked.

    Thank you!
     
  15. true_gamer

    true_gamer Well-Known Member

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    @OmenRIP If your overclock is stable with normal loadline Cal etc. Then leave it where it is.
    I may have been lucky with my CPU running with a couple of lower settings.
    So take my first post as a starting point, and increase the settings until you get a stable overclock that doesn't cause thermal throttling. :)
     
  16. OmenRIP

    OmenRIP New Member

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    @true_gamer Thank you for responding!

    Running Prime95, I get throttling once or twice during an hour run; no throttling running other cpu benchmark apps. I was thinking about changing Tj. Max to 110 C, which *should* eliminate throttling. However, I’m a little afraid of leaving it permanently set at 110 C, which seems like a cop out . I’m cooling the 9900k with NZXT’s Kraken x72 configured as push/pull, with my 4 other fans set to exhaust (in an NZXT h700i case).

    In your opinion, should I change Tj. Max, or tinker with other parameters to control throttling that way?

    Again, thank you for your great post!
     
  17. true_gamer

    true_gamer Well-Known Member

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    I wouldn't be comfortable with a CPU hitting 100C - Personnaly I would back off the overclock.
    Also, I would not increase the TJ max.
     
  18. OmenRIP

    OmenRIP New Member

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    Thanks for the advice. As is usual for me, I got those ideas from another OC guide posted to the web somewhere. Since this my first time overclocking anything, I don’t have a feel yet of what’s right or wrong.

    But I like your OC guide, and it’s philosophy. I’ll stick with it, learning as I go.

    Thanks again.
     
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