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DRAM Calculator for Ryzen 1.7.1 is one of the few versions that received a global memory retest on the newest AGESA. Over 900 hours have been spent testing memory based on Samsung B-die, Micron E-die (062 and 055) and Hynix CJR (DJR) chips.

DRAM Calculator for Ryzen 1.7.1

The changes affected all settings, from procODT to VDDG operating voltage. Another important change is the presence of profiles with odd tCL15, this will eliminate the problems that users have encountered when trying to stabilize the system with a value of tCL14. Also in this release, user interaction with the program was simplified, in particular, 1.7.1 lost the R-XMP button (one extra user action). Now the order is:

The user selects the settings that suit his system.

DRAM Calculator for Ryzen 1.7.1

The user presses the Calculate SAFE or Calculate FAST button and that’s it.

DRAM Calculator for Ryzen 1.7.1

The program itself selects the SPD profile relative to the selected DRAM PCB Revision parameter. The DRAM PCB Revision parameter is essentially new, and means the PCB revision that the RAM has. Visually determining the PCB revision is very simple:

DRAM Calculator for Ryzen 1.7.1

Pay attention to the landing slots for memory chips. In the case of A0, they are equidistant, and in the case of A2, we have 2 groups of 4 modules. Actually, this is all that interests us. By visually inspecting the memory, we can determine which PCB revision your memory is based on. A1 is found most often in OEM products that have an ECC module. We are not interested in this type of memory, since it cannot be overclocked.

Also in the DRAM PCB Revision item, you can see the Bad bin option (bad bin) – it exists for a situation where the settings proposed by DRAM Calculator for Ryzen do not allow the system to start.

The Manual option has not changed its functions and is used to calculate timings after importing a profile from Thaiphoon.

DRAM Calculator for Ryzen 1.7.1

Another important innovation that DRAM Calculator for Ryzen 1.7.1 has is the updated functionality for the Compare timings (ON/OFF) button. Now it demonstrates not only the current delays, but also the timings, which are “strongly squeezed”, have a satisfactory appearance, or “you can tighten it up more”. I use colors as indicators, from red to turquoise (4 levels of colors). Let’s take an example:

DRAM Calculator for Ryzen 1.7.1

Note that some timings are already red – this indicates that the memory has already reached the limit for adequate voltage (up to 1.45V). Orange color indicates that memory may allow you to tighten these delays. Green and turquoise – these timings are far in the safe zone.

As a result, even an inexperienced user will now know where to “twist” delays. This tool will help users in situations where the SAFE preset is stable but FAST has errors.

At the moment, this functionality is limited only to memory based on Samsung B-die chips and the entire line of AM4 processors. If the feedback is satisfactory, this function will be extended to other types of memory.

The last visual change is the new menu Help and my reviews – a section that contains buttons-links to my materials (reviews) and other information sources or forums.

DRAM Calculator for Ryzen 1.7.1

Most of the materials have several language versions for your convenience. I promise that it will not come to the review of keyboards!

A list of all changes can be found below:

  • Reworking of all presets for Samsung B-die, Micron E-die and Hynix CJR(DJR). Improved support for configurations with 4 or 8 RAM modules.
  • Removed R-XMP and Calculate EXTREME buttons.
  • A new Help and my reviews section has been added, which contains links to my materials in addition to reference information.
  • DRAM PCB Revision – choice of PCB RAM for more accurate calculation of timings. In most cases it is recommended to use A0 for better compatibility.
  • The Compare timings (ON/OFF) button has been updated. functionality. It can read not only timings, but also demonstrate the state of timings in visual color indication. Your personal assistant for creating customized presets.
  • New version button added? – allows you to visit the product home page and read materials regarding DRAM Calculator for Ryzen, check for an update, or ask any question.
  • Bug fixes and some graphical adjustments.
  • Reading timings for all processors of the Ryzen family (including future Zen 3).

You can download the latest version of DRAM Calculator for Ryzen from the following resources:



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