The AMD Ryzen All In One Thread /Overclocking/Memory Speeds & Timings/Tweaking/Cooling Part 2

Discussion in 'Processors and motherboards AMD' started by vbetts, Sep 24, 2018.

  1. Webhiker

    Webhiker Master Guru

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    RYZEN-9600X.jpg
    Ryzen 9600X eng sample all core O/C @ 5.7 GHz
     
  2. Undying

    Undying Ancient Guru

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  3. user1

    user1 Ancient Guru

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    pretty well all am5 motherboards will do 7200 at least, but the design of the current generation io die( which will be used on ryzen 9000) isn't really able to take advantage of that memory speed above 6400mt/s, so if a newer processor can take advantage of higher speeds than 6400, there is still alot of room for current generation boards.

    with the current io die, the extra memory speed that may be possible on x870, will be mostly meaningless, there might be a small advantage to running speeds above 8000mt/s , but we're talking a couple percent max if that.

    * though I will mention that if you intend to use an apu , then maybe it will be some benefit , since the graphics portion of the chip will benefit from the higher memory speeds.
     
    Last edited: Jun 12, 2024
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  4. XenthorX

    XenthorX Ancient Guru

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    Current AIDA64 benchmark on the 7950x3D, highly doubt it can be pushed further while preserving perfect stability.
    Aida64-june.jpg
     
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  5. Undying

    Undying Ancient Guru

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    Crippled cache = much slower gaming performance

     
  6. P.O.N.

    P.O.N. Member Guru

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    The CPU I don't know, the RAM certanly can. Excepting latency you shoud do significantly better than my Rysen 7900 at 6400 MT CL30 (X3D adds about 3 ns of latency) since you are at CL28. Something is misconfigured on your RAM. Read speed should be arround 9600 MB/s and write above 100 GB/s (I've tested It briefly on a unstable system and 1.56 v VDD, but I can do fine with CL30 without High Voltage Mode, at 1.435 v)
    Here is my last test from today:

    [​IMG]
    [​IMG]
     
    Last edited: Jun 15, 2024 at 4:59 PM
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  7. XenthorX

    XenthorX Ancient Guru

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    I don't know, it's a 64Gb kit, they usually have some slight performance drawbacks.

    timings-june.jpg
     
    Last edited: Jun 15, 2024 at 6:19 PM
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  8. P.O.N.

    P.O.N. Member Guru

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    There, RFC. For Hynix M-die It can be at 160 ns, for A-die 120 ns. Unless you have a Samsung or Micron die you can get it much lower. Also very little benefit going bellow RRDS 8 and FAW 32, It can in fact impact performace bellow RRDS 6 and FAW 24, so you can get it a little higher.
    If you feel adventorous you can disable GDM, but that will require further ajustment, maybe RDRDSLC to 6 and RRDL 12 for a starting point, probably more timmings should go up for it to work without GDM.
    If you don't need MCR you should disable power down mode as It adds latency
     
    Last edited: Jun 15, 2024 at 9:53 PM
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  9. XenthorX

    XenthorX Ancient Guru

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    @P.O.N. Allrighty, test of the sunday !

    testday.jpg
     
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  10. P.O.N.

    P.O.N. Member Guru

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    Great, RFC might still be stable arround 384 (120 ns). By default Memory Context Restore is disabled, so there is no penalty turnig Power Down off (and get a free 1 ns decrease in latency)

    The RAM config of my last post wasn't stable. At arround 4500% coverage at 24 thread I got 1 error, so I'm back to my previus config

    [​IMG]
     
    Last edited: Jun 16, 2024 at 3:44 PM
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  11. XenthorX

    XenthorX Ancient Guru

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    You're using MemTestpro I see, I've been on TestMem5 for so many years.
    tRFC 456 wasn't stable testing 552 now, shouldn't be very far from stable tho, got 9 errors after 5hours stress test.
     
  12. Horus-Anhur

    Horus-Anhur Ancient Guru

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    What errors were you having with TM5?
    Here is the list of errors and what they mean, when using the 1usmus config.
    This will help you narrow down any issue you have.

    https://docs.google.com/spreadsheet...WLkdQ8/edit?pli=1&gid=221662466#gid=221662466
     
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  13. XenthorX

    XenthorX Ancient Guru

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  14. Horus-Anhur

    Horus-Anhur Ancient Guru

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    Take in consideration that this is valid for the 1usmus config.
    If you use another config in TM5, such anta777, then its another list of errors.
     
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  15. Tomatone

    Tomatone Master Guru

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    Updated TestMem5 and in this version configs can be selected under Settings https://github.com/CoolCmd/TestMem5
     

  16. XenthorX

    XenthorX Ancient Guru

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    I do use anta777 extreme profile.
     
  17. Horus-Anhur

    Horus-Anhur Ancient Guru

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  18. XenthorX

    XenthorX Ancient Guru

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    Looks like I'm stable now, need further test. tRFC 662 / 206ns down from 943/300ns
     
  19. Horus-Anhur

    Horus-Anhur Ancient Guru

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  20. P.O.N.

    P.O.N. Member Guru

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    RFC is probably still high. I'm sure you have a Hynix-die DRAM, since you you can post at 206 ns. For M-die RFC 512 just works, for A-die 416 (but people are comonly able to get it even lower at 120 ns). If you are having trouble stabilizing at those timings, especialy with GDM enebled, It might not be RFC the issue, It got to be some voltage or another timming. You can check your DRAM die at HWinfo, but if you can post at 6400 MT below RFC 480 It's A-die for sure
    [​IMG]
    [​IMG]
     
    Last edited: Jun 19, 2024 at 1:11 AM
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