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DRAM Calculator for Ryzen

DRAM Calculator for Ryzen v1.4.1

January 17th, 2019 - What's New
  • 104.4 KB
    Win 10, 8, 7 (32-bit & 64-bit)
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Publisher: 1usmus
Downloaded: 96,145 times (28.4 GB)

DRAM calculator for Ryzen helps with overclocking your memory on the AMD Ryzen platform.

It suggests memory timing sets optimized for your memory kit, for example B-die.

Using Ryzen DRAM calculator you can achieve higher memory overclocks with better stability.

Ryzen DRAM calculator is designed to work with all AMD Ryzen Zen architecture first and second generation processors.

Version History

v1.4.1 (January 17th, 2019)

  • Added a window with information about the minimum voltage for SOC
  • Major updated presets for : samsung b-die , samsung d/e-die , hynix cjr , hynix mfr , hynix cjr (timings, voltages)
  • Minor updated other presets (timings)
  • Some corrections for debug profile
  • Other corrections/bug fixes


  • In some presets tRC a multiple of tRFC (better stability and performance)
  • Hynix MFR V2 profile has been deleted (many users had difficulty choosing the right profile)
  • tWR's basic recommendation is now 12 (this high timing timing adversely affects stability)
  • RTT_NOM . Newer BIOS versions should not always have RZQ / 7 (34ohm), sometimes the RZQ/6(40ohm) or disabled has better stability
  • CAD_BUS. AddrCMDDrvStr slightly increases with the frequency of the RAM, 24-30(ohm) are the optimal value.
  • New bios allow a slight decrease in SOC voltage (that's why I created a window with information about the minimum voltage)

v. (October 12th, 2018)

  • Fixed Gear Down bug
  • Some correction DRAM voltages for OEM
  • Some correction Soc voltages for frequencies that are below 3333 MHz
  • Program signature fixed

v1.4.0 (October 11th, 2018)

  • Initial support Threadripper gen 1 and gen 2
  • Improved SOC voltage prediction for different processors and their generations
  • Additional window that will tell what minimum DRAM voltage is needed by the system
  • Additional windows that show a nanosecond delay for the current calculated profile. It will be especially useful for users who are reflashing SPD
  • Improved prediction procODT + RTT + CAD_BUS for some memory (the block has endured many changes)
  • Improved overclocking for Hynix CJR . Up to 3800 MHz inclusive. Big thanks @Reous for the help
  • A switch has been added to define system tasks, BGS / BGSalt recommendations depend on it. Turning off BGS allows you to increase gaming performance by up to 5%
  • The "Custom" profile will be based solely on the data that is placed in XMP. Its new name is "Debug". Mode designed from scratch, available for almost all chips (but still need some time for a more subtle configuration).I think this mode is needed for professionals who want to see all the changes relative to automatic overclocking or XMP profile. This will allow them to see some nuances that can not provide the profiles of "V1" and "V2".Also, this mode will be useful to owners of systems based on Intel processors.
  • Some changes in procODT + RTT for systems in which 4 RAM SR modules
  • Added support for Micron D-die
  • Changes in the code that will help speed up the development of the calculator (future versions)
  • Added some popup tips for key settings
  • New picture in folder Configuring Ryzen Systems v5
  • Other corrections/bug fixes

v1.3.1 (July 30th, 2018)

  • new extreme presets for samsung b-die
  • correction procODT+RTT_PARK for samsung b-die, all micron + correction RTT_NOM for all memory
  • new V2 profile (low quality chips) for samsung b-die
  • added support high frequency for 4 dimm samsung b-die
  • added support Hynix AFR/MFR in Overclocking potential DRAM
  • pop-up windows are added for some situations
  • main recomendation 20 20 20 20 for CAD_BUS is back
  • correction some timings in all samsung b-die presets
  • some correction in micron e-die preset
  • picture "b-die termination" in folder
  • geardown bug fix
  • minor bug fix