Overclock your AMD Epyc

Discussion in 'Processors and Motherboards' started by nero243, Feb 5, 2019.

  1. xdregox

    xdregox Member

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    Change from /4 to /2 on p0 state and redo multipler to 32 probably 1.181 volts. Called fid did and voltage for amd
     
    #101
  2. AmusedGoose

    AmusedGoose New Member

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    Thanks! I'll try tomorrow and report back. I tried /8 /6 /5 /4, all had the same max multiplier so didn't go further down that alley.

    Edit: it worked, runs at 3,5GHz @ 1.1V, pulling 270-290W full load for Cinebench. Won't be pushing further in fear of damaging the VRM. Seems like a good chip :)

    Edit2: max stable so far is 3,1GHz @ 1.025V with Prime95, which will be my 24/7 clock. VRM's are 40-50C but can't measure properly.
     
    #102
    Last edited: Mar 28, 2019
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  3. mgio

    mgio New Member

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    Finished my epyc es build:
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
    #103
  4. AmusedGoose

    AmusedGoose New Member

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    Awesome sleeper build, what CPU are you rocking in there (a 7551P?) and what clocks did you get?
     
    #104
  5. WeightedCube

    WeightedCube New Member

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    All that power to play OSRS, I like this man.

    Edit: Just noticed the client. Bot farm incoming I see :D
     
    #105
  6. mgio

    mgio New Member

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    Just needed some load on the cpu :) regarding overclock, actually have to check how to apply the clock. I think it is a good chip tho. It's 7551 ES 2S1905A4VIHF4 1.9GHz
     
    #106
  7. mgio

    mgio New Member

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    [​IMG]

    [​IMG]

    Goals we're reached today, i had to beat that poor 60 core. I crashed on 3.9ghz, maybe i can try some different settings once i got more sufficient cooling.

    Edit: Something interesting perhaps? Am i drawing 1000watts here? If so, above 3.8 may be related to drawing over 1000watts?

    [​IMG]
     
    #107
    Last edited: Apr 4, 2019
  8. AmusedGoose

    AmusedGoose New Member

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    I get the same error in HWInfo where it shows ~1000W, check the power consumption you see when you scroll down a bit. I expect something more like 400-450W which is still a metric f*ckton. :D

    Check your stability and temps in Prime95 with blended load, you'll probably have to turn it down a notch. Then again I didn't feel like pushing over 300W through my VRM's. What motherboard is that?
    What do you get on cinebench R15?
     
    #108
  9. mgio

    mgio New Member

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    Where do i get cinebench R15, couldn't easily find it. Also installing the eisbear extreme 280mm cpu cooler now.

    Edit: Installed eisbear cooler, better temps!
    I still could not get it to 3.9ghz and do cinebench, maybe on other loads it will be fine? i will try going higher but not doing cinebench. Just other load, normal but high usage load.

    [​IMG]
     
    #109
    Last edited: Apr 5, 2019
  10. mgio

    mgio New Member

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    #110
  11. LobsterMD

    LobsterMD New Member

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    HWInfo shows like 23000 Watts for me. Kind of crazy lol.
     
    #111
  12. Patriot

    Patriot Moderator

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    #112
  13. mgio

    mgio New Member

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    I will get some Cinebench R15 results in a bit, trying to figgure out now why Discord seems slow. Basically only discord and i believe it has to do with some hardware acceleration, virtualisation of cpu but that's all enabled.

    The videocard i have in however does not have the right drivers w5100 seems a bit unsupported. The card is a bit older but should still work, i had it working in a hp z620.
     
    #113
  14. mgio

    mgio New Member

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    #114
  15. efschu2

    efschu2 Member

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    #115
  16. MrCake117

    MrCake117 New Member

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    Yes ,even on dual cpus setup


    S__9330724.jpg
     
    #116
  17. Trotador

    Trotador New Member

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    Would you mind show how do you get it working on a dual cpu linux host? just one command?

    thanks!
     
    #117
    Last edited: May 11, 2019
  18. MrCake117

    MrCake117 New Member

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    Sorry for replying this late

    Well i just installed zenstates and ran
    Code:
    python zenstates.py -p0 -f  20 -d 2  -v 3A --c6-disable
    Code:
    usage: zenstates.py [-h] [-l] [-p {0,1,2,3,4,5,6,7}] [--enable] [--disable] [-f FID] [-d DID] [-v VID]
    
    Sets P-States for Ryzen processors
    
    optional arguments:
      -h, --help            show this help message and exit
      -l, --list            List all P-States
      -p {0,1,2,3,4,5,6,7}, --pstate {0,1,2,3,4,5,6,7}
                           P-State to set
      --enable              Enable P-State
      --disable             Disable P-State
      -f FID, --fid FID     FID to set (in hex)
      -d DID, --did DID     DID to set (in hex)
      -v VID, --vid VID     VID to set (in hex)
      --c6-enable           Enable C-State C6
      --c6-disable          Disable C-State C6
    
    In order to get 3.4Ghz@1.187V on P-sates 0 on both CPUs

    Capture.PNG
     
    #118
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  19. Trotador

    Trotador New Member

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    Ok thanks!, I've got 7551's but don't want overclock much since CPUs are always at 100% all threads.

    I've started changing the multiplier to 22 and nothing else. Killawatt shows an increase in power so it seems that worked but cpufreq, cpupower report actually a lower cpu freq.

    default values:
    P0 - Enabled - FID = 64 - DID = A - VID = 5E - Ratio = 20.00 - vCore = 0.96250
    P1 - Enabled - FID = 60 - DID = C - VID = 63 - Ratio = 16.00 - vCore = 0.93125
    P2 - Enabled - FID = 60 - DID = 10 - VID = 69 - Ratio = 12.00 - vCore = 0.89375
    P3 - Disabled
    P4 - Disabled
    P5 - Disabled
    P6 - Disabled
    P7 - Disabled
    C6 State - Package - Disabled
    C6 State - Core - Enabled

    and after changing multiplier to 22
    P0 - Enabled - FID = 6E - DID = A - VID = 5E - Ratio = 22.00 - vCore = 0.96250
    P1 - Enabled - FID = 60 - DID = C - VID = 63 - Ratio = 16.00 - vCore = 0.93125
    P2 - Enabled - FID = 60 - DID = 10 - VID = 69 - Ratio = 12.00 - vCore = 0.89375
    P3 - Disabled
    P4 - Disabled
    P5 - Disabled
    P6 - Disabled
    P7 - Disabled
    C6 State - Package - Disabled
    C6 State - Core - Enabled

    How do you monitor the actual clocks?.

    Thanks!
     
    #119
  20. efschu2

    efschu2 Member

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    I usualy use nmon for that.
    nmon -> M -> M -> M
     
    #120
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