5 Replies Latest reply on Jun 9, 2018 4:09 PM by ossy86

    Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?

    ossy86

      Hello forum,

       

      I need much RAM for big data simulations.

      Currently, I have an A8-7600 with 8GiB RAM on an ASrock FM2A88X Extreme 4+ and thought about upgrading it with 4x16GiB DDR3-1866. I take 1866 MHz modules because I did not find any 16GiB RAM modules that run at 2133 MHz.

       

      Then I thought about investing just 500 Euro more and take the Ryzen 5 2400G +4x16GiB 2933MHz RAM. However, there are different opinions in other forums. For Raven Ridge, I find the recommendation to run 4 DR DIMMS at 2133MHz.

       

      Others say, they have a stable configuration with Ryzen processors+4 DIMMs at 2933MHz (with AGESA). Now, what is correct? Would a configuration that is mentioned in the title run properly?

       

      Note: I am doctoral student and I have no further access to the simulation machine at university. Therefore, I need my own. I do not play computer games - unless Monkey Island 5 appears.

       

      I accidentally marked this equestion as answered...

        • Re: Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?
          wimpzilla

          Hello,

           

          What kind of computation do you perform?
          Is more cpu or gpu oriented?

           

          Also be sure to choose the right motherboard, that can support easily 4*16Gb of ram.
          Not sure all motherboard are to the same when you need such amount of ram, clocked at least a 2933Mhz.

          1 of 1 people found this helpful
            • Re: Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?
              ossy86

              The computations are CPU oriented. I am thinking about the X470 AORUS ULTRA GAMING (rev. 1.0) | Motherboard - GIGABYTE Global

               

              But, who else has a stable Ryzen 5 Raven Ridge configuration with 4 DIMMs at 2933MHz? Thank you for your comment, benman2785. However, I'd like to hear from someone else that the mentioned configuration is stable with a Ryzen 5 at 2933MHz.

                • Re: Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?
                  wimpzilla

                  Hello,

                   

                  To be honest if you are mainly focused on cpu workloads, i would advice you to think about switching the 2400G with a R5 1600/2600.
                  You could buy a cheap second hand pci-e gpu, just to handle basic desktop loads, then maybe get a decent gpu later on if you need.
                  Doing that you would get 2 more cores and 4 mores threads, if your compute workloads are heavily multithreaded using many thread/cores as possible, you will noticeably reduce your compute time or increase your compute power.

                   

                  About the ram, unfortunately with the current prices, it will not be easy to fin a cheap good 64Gb kit at 2933MHz, where i live, it would cost far more than the cpu/mb combo, more than 500euro. Also as we noted before, you need to check if the motherboard can handle that amount at that speed, not sure cheap board would handle that correctly.

                   

                  To sum up, think about which cpu would really be the best for you, an APU quad core and bare six cores. Knowing you could also upgrade later on to a R7 1700/2700.
                  Check carefully the ram amount and prices.

                  1 of 1 people found this helpful
              • Re: Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?
                benman2785

                buy the ryzen

                 

                dont use XMP - make all settings by hand: you will run your ram at 2933
                MAYBE you need to oc ram and lower-multi

                 

                ps on AM3+ i run 4x4G 1866er as 234MHz x8 = 1872MHz in CL9 - instead of 200MHz x 9,33 // and i could even go higher // XMP fails to load at 1866er CL9 // so you see - if you do it with your own hands you have benefits // actually you benefit even more on RyZen with that - your InfinityFabric gets faster that way

                1 of 1 people found this helpful
                  • Re: Ryzen 5 2400g + 64GiB (4x16GiB) at 2933MHz stable?
                    ossy86

                    Hi,

                     

                    I decided to buy the configuration and now I have the following stable system:

                    - Ryzen 2400g

                    - ASRock Fatal1ty X470 Gaming K4

                    - 2x Corsair CMK32GX4M2B3000C15 running at 2933MHz

                    + Fan for RAM

                     

                    LInux 4.17-rc* and newest 4.17 runs stable with these kernel parameters: amd_iommu=on iommu=pt rcu_nocbs=0-7

                    If I do not forget it, I will make a report if no further kernel parameters are needed anymore.