Underclock RAM for 5930k MSI x99a

Discussion in 'Memory' started by DarthL, Oct 7, 2019.

  1. DarthL

    DarthL n00b

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    Sup, i want to buy modern ram for my future pc but my old pc is still working (but i have only one ram stick 2133mhz ), my motherboard supports only 3300mhz maximum and i red an old thread where was a description about possible damage to CPU by installing ram with frequency higher 2666mhz, so my question is - Can i configure in BIOS ram (lets say Gskill trident Z 4266 mhz 16gb) settings to 2133 mhz with optimal timings and run it save and stable ? What should i know about xmp and timings and how to not blow up my system ? CPU is not overclocked
     
  2. doubletake

    doubletake Gawd

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    I don't know where you read that garbage, but memory speed alone cannot do anything to your CPU, only voltage can. If, for example, you tried to run your memory way up at something like 1.6v+ when stock DDR4 voltage is usually 1.2-1.35 (and only the really fast stuff goes up above 1.5), then yeah, you could actually damage your memory controller. Maybe not immediately, but it would be practically guaranteed to die an early death. You need really good active cooling to keep those kinds of memory voltages from being dangerous to the CPU, and it'll never be for long term.

    To answer the actual question, you can just install the memory and run it without enabling XMP, which means it'll run at the lowest standard JEDEC speed of 2133, and you can then manually set the timings if you want.
     
  3. DarthL

    DarthL n00b

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    Thx for answer sir ! Actually i refer to this 2016 forum's thread:

     
  4. D-EJ915

    D-EJ915 Gawd

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    There's no guarantee RAM overclocks will work but 2667 works pretty well for 5000 series HEDT chips in my experience.
     
  5. Unknown-One

    Unknown-One [H]ardForum Junkie

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    As someone running 3200 MHz DDR4 with a 6800k (also a Socket 2011-3 CPU)... should I be worried?
     
  6. D-EJ915

    D-EJ915 Gawd

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    The 6000 can run much higher ram speeds than the 5000 series can
     
  7. Unknown-One

    Unknown-One [H]ardForum Junkie

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    I'm aware, but my SA voltage is up at 1.238v in order to get 3200 MHz DDR4 stable. Hoping that's not high enough to degrade the memory controller...
     
  8. hititnquitit

    hititnquitit Gawd

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    Ddr4 3200 14 14 14 34 is what i ran my memory at with 6850k and evga x99 classy. Ran it that way for a couple years. Rig still runs solid as a rock. So i doubt youll have any issues running 3300 with yours if you choose to.
     
  9. Unknown-One

    Unknown-One [H]ardForum Junkie

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    Ok... but what was your SA voltage? I keep reading that anything over 1.2v is too much...
     
  10. hititnquitit

    hititnquitit Gawd

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    Its torn down right now so i cant check it unfortunately. I wouldnt sweat it tbh. Just run it below 1.2 and call it a day. I didnt have any luck increasing sa or vccio anyhow. My mb wont do more than 3200 no matter what voltage or timings i run.