AMD Radeon Software Allegedly Changes CPU Settings Without User’s Knowledge

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German publication Igor’s Lab has investigated a potential anomaly surrounding AMD’s Adrenalin GPU software. Current speculation is that the integration of AMD’s Ryzen Master module into Adrenalin software version 22.3.1 or later has inadvertently allowed the program to manipulate CPU PBO and Precision Boost settings without the user’s permission.

According to user feedback, the issue only occurs with AMD CPU and GPU combinations, as this hardware supports the Ryzen Master SDK. So if you’re using a system that has either an Intel CPU paired with a Radeon GPU or a Ryzen CPU paired with an Nvidia GPU, you won’t experience this issue.

For some reason, AMD‘s Adrenalin software will automatically enable PBO or the “CPU OC” setting when applying GPU profiles, including the default profile, which happens automatically.

This situation can be irritating if you already have CPU overclocking and undervoltage settings pre-configured in your motherboard’s BIOS, but luckily the chip has built-in protection mechanisms to prevent any real physical damage. However, Adrenalin can allegedly override your settings with arbitrary settings, which could impact CPU stability. Igor’s Lab discovered that the AMD Adrenalin software can change the power limits and maximum boost frequency of the Ryzen processor through the PBO settings. It is not known if the instability comes only from users manually adjusting CPU settings or if it also occurs under default conditions.

Fortunately, there are several ways to restore your CPU to its original configuration. One method is to go back into your board’s BIOS and re-enter all of your CPU settings (or disable PBO if you’re running the default settings). Alternatively, you can also run Radeon Software Slimmer, which can remove the Ryzen Master SDK from Adrenalin Software, preventing the mod from adjusting CPU settings. Radeon Software Slimmer comes from a third-party program, so use it at your own risk.

But the easiest solution comes from a Reddit user who explains how creating a new tuning profile for your GPU in the Adrenalin software will prevent the module from fully manipulating the PBO settings in your motherboard BIOS.

AMD hasn’t shared any information on the subject, so it remains a mystery why Adrenalin software can change BIOS settings without user manipulation.

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