User Manual

55931 Rev. 1.20 February 2018
AMD Ryzen™ Master Overclocking User’s Guide
AMD Ryzen™ Master 1.2 Addendum
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10.5 Feature support variations
10.5.1 Legacy Compatibility Mode and Memory Access Mode
Figure 15. Feature Support Variations
Several features may or may not be applicable to a given processor family, or model, or
generation. Ryzen Master 1.2 changes the visibility of two features depending on applicability:
1. The Legacy Compatibility Mode (LCM) control is relevant to processors with greater than
four cores
a. Ryzen Master 1.2 deactivates and hides this control for any processors of four cores
or less
2. The Memory Access Mode (MAM) control is relevant only to Ryzen Threadripper
processors
a. Ryzen Master 1.2 deactivates and hides this control for Ryzen processors