User Guide

55931 Rev. 1.0 March 2, 2017
AMD Ryzen Processor Overclocking User’s Guide
AMD Ryzen Master Application
25
5.1.5 Memory Overclocking
AMD Ryzen Master offers an easy-to-use graphical user interface for adjusting the most important
memory parameters.
Memory performance can be tuned by increasing the memory clock or by reducing the memory
timings and latency. Typically, the higher memory clocks require higher memory timing values
but in some cases, it may be possible to maintain the timings or even lower them. Results will
vary depending on the exact configuration.
If the memory modules support a higher memory clock it’s recommended to apply the timings as
per the memory specification (SPD settings).
The following example uses a dual channel DDR4-2400 memory kit (CL17-17-17-17-39 timings,
1.2V voltage, 2x8GB).
Figure 11: AMD Ryzen Master application - Memory Overclocking Example
In the above example the memory clock is adjusted from default 1200MHz (DDR4-2400) to
1333MHz (DDR4-2666) while timings have been increased from 17-17-17-17-39 to 18-18-18-18-
40. Memory voltage was also adjusted from default 1.20V up to 1.296V and SOC Voltage was set
to 1.20V. Note that Memory VTT voltage will automatically be set to half of Memory voltage
(MEM VDDIO).
System restart is required for applying the settings as memory needs to be retrained for the new
values.