User Manual

AMD Ryzen™ Master Overclocking User’s Guide
55931 Rev. 1.20 February 2018
38
AMD Ryzen™ Master 1.2 Addendum
10.2.1 CPU Power Domain
All AMD Socket AM4 and Socket TR4 CPU and APU processors contain CPU cores supplied by
a CPU power domain.
• The CPU Voltage setting determines how far the CPU Cores frequency can be driven to a
point of instability
• Ryzen Master 1.2 reports CPU domain values sampled for
o CPU Power in Watts
o CPU Thermal Design Current (TDP) as a % of board capacity
o CPU Electrical Design Current (EDC) as a % of board capacity
10.2.2 SOC Power Domain
All AMD Socket AM4 and Socket TR4 CPU and APU processors contain an SOC power domain
in which the Memory Controller resides. AMD AM4 APUs add the Graphics processor in the
SOC power domain.
• The SOC Voltage setting influnces the overclocking potential for both the memory
controller and the APU Graphics (GFX)
o The APU GFX Voltage is derived from the SOC Voltage and influences how far
the GFX frequency can be driven to the point of instability
• Ryzen Master 1.2 now reports SOC domain sampled values for
o SOC Power in Watts
o SOC Thermal Design Current (TDP) as a % of board capacity
o SOC Electrical Design Current (EDC) as a % of board capacity