ZenStates

Spec sheet

Purpose

ZenStates is a Windows application for controlling AMD Ryzen CPU settings through SMU commands.Read 8 Oct 2026 · github.com

Security

The README requires installing a WinRing driver but does not state a security certification or compliance standard.Read 8 Oct 2026 · github.com

License

The repository identifies its license as GPL-3.0.Read 8 Oct 2026 · github.com

Boost controls

Documented commands set the single-thread maximum boost frequency and the maximum boost frequency for multicore applications, with the latter still subject to PBO limits.Read 8 Oct 2026 · github.com

Command limitation

The README says the DisableSmuFeatures command is rejected with response 0xFD and seems to be blocked by AMD.Read 8 Oct 2026 · github.com

Command research

The README says its SMU command research is based on SMU version 64.40.00 and that no public document describes the available commands.Read 8 Oct 2026 · github.com

FIT scalar

A documented command sets the FIT limit scalar from 1 to 10.Read 8 Oct 2026 · github.com

Installation

The application is distributed as a ZIP containing the GUI and service executables, and the README describes extracting it and running ZenStates.exe.Read 8 Oct 2026 · github.com

Interface

The application includes a graphical interface executable, ZenStates.exe, and a service executable, ZenStatesSrv.exe.Read 8 Oct 2026 · github.com

Maker site

The repository links to zenstates.protonrom.com, which currently displays a domain-reserved page rather than product information.Read 8 Oct 2026 · zenstates.protonrom.com

Overclocking

Its documented commands include enabling or disabling overclocking and setting overclock frequencies and VID.Read 8 Oct 2026 · github.com

Project website

The linked project website currently displays a reserved-domain notice rather than product, pricing, or company details.Read 8 Oct 2026 · zenstates.protonrom.com

Requirements

The README lists the WinRing driver and .NET Framework 4.0 as prerequisites.Read 8 Oct 2026 · github.com

Supported systems

The README lists Windows XP, Vista, 7, 8, and 10 as supported operating systems.Read 8 Oct 2026 · github.com

Supported Windows versions

The README lists Windows XP, Vista, 7, 8, and 10 as supported operating systems.Read 8 Oct 2026 · github.com

Technical scope

The listed reverse-engineered SMU command research is based on SMU version 64.40.00.Read 8 Oct 2026 · github.com

Temperature

The command list includes setting TjMax temperature, with the README saying the unit is probably degrees Celsius.Read 8 Oct 2026 · github.com

Temperature setting

A documented SMU command sets the TjMax temperature, described as probably being in degrees Celsius.Read 8 Oct 2026 · github.com

Where Specifiction places it

• PC Overclocking Software#30 of 316.4