AMD Ryzen Processor and AMD Ryzen Master Over-clocking User’s Guide Publication # 55931 Revision: 1.
© 2017 Advanced Micro Devices, Inc. All rights reserved. The information contained herein is for informational purposes only, and is subject to change without notice. While every precaution has been taken in the preparation of this document, it may contain technical inaccuracies, omissions and typographical errors, and AMD is under no obligation to update or otherwise correct this information. Advanced Micro Devices, Inc.
55931 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide Contents Chapter 1 Guidance Terms and Conditions ............................................................................ 7 Chapter 2 Supported Products and Operating Systems ........................................................ 9 Chapter 3 Introduction to AMD Ryzen Processor Overclocking ........................................ 10 Chapter 4 AMD Ryzen processor Overclocking Summary ..................................
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 List of Figures Figure 1: AMD Ryzen Processor .................................................................................................... 10 Figure 2: AMD Ryzen Master Warning and Warranty Disclaimer Message ................................. 14 Figure 3: Current settings for AMD Ryzen Master application ...................................................... 16 Figure 4: AMD Ryzen Master example ..........................
5931 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide List of Tables Table 1: Glossary of Terms..............................................................................................................
AMD Ryzen Processor Overclocking User’s Guide 55931 Revision History Date March 2, 2017 6 Revision 1.0 Description Public release Rev. 1.
55931 Rev. 1.0 Chapter 1 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide Guidance Terms and Conditions This AMD Ryzen Processor and AMD Ryzen Master User Guide (“Guidance”) and the AMD Ryzen Master application (“AMD Ryzen Master”) are provided subject to the following terms and conditions: The Guidance in no way modifies, alters or supersedes AMD’s officially published specifications for any AMD product (the “Specifications”).
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 WARNING: AMD processors, including chipsets, CPUs, APUs and GPUs (collectively and individually “AMD processor”), are intended to be operated only within their associated specifications and factory settings.
55931 Rev. 1.0 Chapter 2 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide Supported Products and Operating Systems This document and the AMD Ryzen Master application currently support the following AMD products: AMD “Ryzen” Processor family in the AM4 socket infrastructure Future AMD products will be added when supported. AMD product overclocking support provided by AMD OverDrive™ and the AMD Ryzen Master application are mutually exclusive.
AMD Ryzen Processor Overclocking User’s Guide Chapter 3 55931 Rev. 1.0 March 2, 2017 Introduction to AMD Ryzen Processor Overclocking Systems based on the AMD Ryzen processor may be tuned to deliver added system performance. The AMD Ryzen family of processors offer an exciting amount of performance tuning options, including potential overclocking headroom. Note that each processor and motherboard is different, and may result in lower or no overclocking margin.
55931 Rev. 1.0 Chapter 4 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide AMD Ryzen Processor Overclocking Summary AMD AM4-based Ryzen processors are unlocked when paired with the enabling AMD chipsets and necessary BIOS software and therefore allow the user to adjust the CPU clock above or below the stock value. When run on boards enabled for overclocking, AMD Ryzen Master will automatically enable the Overclocking Mode at the user’s initiation of a change to a stock parameter.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 5. The internal memory controller and various other data paths will be initialized to the highest common operating frequency of any of the memory DIMMS present in the system and with memory timing parameters obtained from the DIMM resident SPD ROMs.
55931 4.1.3 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide CPU Overclocking Enablement When used on an overclocking-enabled motherboard, an AMD Ryzen processor is ready for Overclocking Mode. The processor will run normally with all internal power, voltage, and thermal management features enabled until a point in time when user-directed system software reprograms the specific voltage and frequency values to levels other than stock operating values.
AMD Ryzen Processor Overclocking User’s Guide Chapter 5 55931 Rev. 1.0 March 2, 2017 AMD Ryzen Master Application The new AMD Ryzen Master application supports AMD’s new generation of Socket AM4 processors. This new application no longer includes GPU overclocking as was provided in the former AMD OverDrive™ utility. For overclocking AMD’s discrete graphics cards, see the Radeon WattMan GPU Overclocking utility within the Radeon Software provided with AMD discrete graphics cards.
55931 5.1.1 Rev. 1.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 NOTE: 5.1.2 AMD Ryzen Master requires that HPET (High Precision Event Timer) is enabled within Windows 10. Please refer to Chapter 8.1 for additional information on HPET. AMD Ryzen Master requires that the Windows 10 Power Options be configured such that the Power Button mode is set with Fast Boot disabled. This is necessary to allow the processor cores to all be enabled after a system power cycle.
55931 Rev. 1.0 AMD Ryzen Processor Overclocking User’s Guide March 2, 2017 The values can be adjusted by selecting one of the four user editable profiles (1 to 4). In the below example Profile 1 has been selected. To Overclock the CPU the user needs to adjust the CPU clock. There are five ways to do this with AMD Ryzen Master: 1) dragging the yellow dot in the clock slider 2) by typing in the desired CPU clock in the text box.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 Figure 4: AMD Ryzen Master example The recommendation is to increase the CPU clock in small steps while monitoring CPU performance, stability and CPU, motherboard, system and GPU temperatures. Once an unstable CPU clock has been reached and the CPU temperature is not too high it’s possible to increase the CPU voltage in small steps to see if the increased CPU voltage allows stable operation at higher frequencies.
55931 5.1.3 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide CPU Performance & Temperature Histogram AMD Ryzen Master features a Histogram for monitoring the CPU core clock speeds and the CPU temperature. The Histogram can be expanded and minimized by clicking the ˅ and ˃ buttons. The Speed and Temperature histograms may be individually displayed via their respective check boxes. The Speed Histogram graph displays the sampled current (instantaneous) clock speeds of enabled cores.
AMD Ryzen Processor Overclocking User’s Guide 5.1.4 55931 Rev. 1.0 March 2, 2017 Disabling Cores The AMD Ryzen Master application allows the user to disable a select number of CPU cores. This may improve overclocking headroom for the remaining CPU cores or can be used to reduce the overall CPU power consumption. Please refer to Chapter 7 for further information on AMD Ryzen processor core configuration. By default, the CPU runs with all cores enabled.
55931 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide Since Core Disable requires a system reboot the following pop up message will appear. Click “OK” to reboot the system or “Cancel” if you do not wish to park the cores now.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 Once the system has rebooted back to the Operating System, AMD Ryzen Master is automatically launched. It is important to give the OS and AMD Ryzen Master a few moments to initialize after this step. Do not re-start AMD Ryzen Master manually or you will get the message that another instance of AMD Ryzen Master is already running, either the automatic one or the one you opened, and the second instance cannot start.
55931 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide The number of enabled cores can be verified by opening the Windows 10 Task Manager and the Performance tab (change the CPU graph to display Logical processors: Figure 9: Windows 10 Task Manager with six enabled CPU cores Note that since the disabled cores have been hidden from the OS, they will not appear as idle or parked in any Windows resource-monitoring application until enabled.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 Certain CPU monitoring tools are able to track dynamic changes initiated by AMD Ryzen Master. In order to re-enable the disabled cores, the system must be powered off completely (alternatively the motherboard may initiate a cold reset) and restarted. Note that Windows 10 must be configured in the Power Options to disable fast startup when the chassis power button is pressed to turn the system on.
55931 5.1.5 Rev. 1.0 AMD Ryzen Processor Overclocking User’s Guide March 2, 2017 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.
AMD Ryzen Processor Overclocking User’s Guide 55931 Rev. 1.0 March 2, 2017 Figure 12: System reboot pop-up message following Memory adjustments Click “OK” to reboot the system and apply the new memory settings. NOTE: Memory settings should be adjusted with great care as incorrect or unstable settings may prevent the system from booting up or may fail to load the OS (including corrupting the OS installation).
55931 Rev. 1.0 Chapter 6 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide CPU Core Configuration As core counts increase for enthusiast processors, it becomes valuable for the user to have control over how many cores are accessible to software. A performance-tuned system running low thread-count software and four enabled cores might be optimal for one user. Alternatively, a performance-tuned system with all cores enabled might be better for another user.
AMD Ryzen Processor Overclocking User’s Guide Chapter 7 7.1.1 55931 Rev. 1.0 March 2, 2017 Important Information Enabling HPET Most of the AMD Ryzen Master application functionality is available only when the system timer is set to High Precision Event Timer (HPET). It is highly recommended that HPET is enabled before using the application. To enable HPET: Start a command prompt as an administrator Execute the "HPET.
55931 7.1.4 Rev. 1.0 March 2, 2017 AMD Ryzen Processor Overclocking User’s Guide AMD Ryzen Master processor resource consumption Since AMD Ryzen Master is an application and samples many processor parameters to display real-time performance information, it consumes processor resources but presents a light load at idle. You may notice AMD Ryzen Master taking slightly more resources as a percentage when a heavy workload is running, such as a highly-threaded benchmark.
AMD Ryzen Processor Overclocking User’s Guide Chapter 8 55931 Rev. 1.0 March 2, 2017 Glossary of Terms The following table provides further information on the commonly used terms. Term AM4 Description AM4 is an AMD single-socket client infrastructure supporting DDR4 memory CCLK CPU Core Clock CCX Core Complex where more than one core shares L3 resources. Core The instruction execution unit of the processor when the term Core is used in an x86 core context.
