User Manual

55931 Rev. 1.20 February 2018

AMD Ryzen™ Master Overclocking User’s Guide

AMD Ryzen™ Master Application

displayed in the Current view and the Profiles for the user in the format they will be offered

for control in that future version.

5. Several voltages control how high CPU and memory frequencies can be driven.

a. CPU Voltage adjusts the core CPU voltage through the VID value. Type in value, use

mouse scroll, use up/down keyboard keys or click the up/down button. This voltage is

typically the only voltage adjustment needed to raise core speed.

b. VDDCR_SOC adjusts non-core voltages that primarily influence memory overclocking

performance. Type in value, use mouse scroll, use up/down keyboard keys or click the

up/down button. This voltage requires a Windows Restart that Ryzen Master will initiate

on Apply.

Note: Some motherboards may apply a voltage offset from the BIOS. In this case the

actual CPU voltage may be higher (or lower) than what the CPU VID value

suggests. It’s always a good idea to monitor the actual voltage level (from the BIOS

or with the motherboard vendor’s monitoring application).

Caution: Raising the CPU Voltage above the stock setting is the single-most contributing

factor to reduced life of the processor and/or damage due to transistor over-

stress and temperature. Each individual CPU unit may respond to changes in

CPU Voltage differently.

c. MEM VDDIO is typically set to the overclocking voltage specified by the memory

module. MEM VTT is typically set for one half of MEM_VDDIO. When MEM VDDIO

is set using AMD Ryzen Master, the VTT value is automatically set to VDDIO/2.

However, if the motherboard and its BIOS supports VTT control, the user can adjust VTT

to other than VDDIO/2 values after the automatic setting of VDDIO/2. To set the value,

type in value, use the mouse scroll, up/down keyboard keys or click the up/down button.

This voltage requires a Windows Restart that Ryzen Master will initiate on Apply.

Note: Motherboards that do not make MEM VDDIO available to AMD Ryzen Master

through BIOS will cause AMD Ryzen Master to display “NA” for MEM VDDIO and

MEM VTT. Memory clock and timing adjustment may still function within the scope

of the fixed memory voltage.

6. Memory Control – Memory Clock

System memory clock adjustment can be made through several means

a. Memory clock horizontal speed slider (move with mouse or use mouse scroll)

b. Keyboard left/right arrow keys can also be used to adjust the memory clock (line feed) A

change to the memory clock requires a Windows Restart that Ryzen Master will initiate on

Apply.