MSI Afterburner developer adding ‘triple channel voltage’ support for future MSI RTX 50 graphics cards

MSI Afterburner’s sole developer, Alexey Nicolaychuk, is working on a new update for the app that will expand its voltage support for overclocking enthusiasts. In an update on the Guru3D forums, Nicolaychuk revealed that he’s working on “triple channel voltage” aimed at future MSI graphics cards that will expand voltage control beyond just core voltage manipulation.

Triple-channel voltage control will allow users to control two additional voltage parameters on future MSI graphics cards: memory voltage and aux (MSVDD) voltage. Core voltage control also gets an upgrade, boasting a direct PWM access mode featuring an expanded 100mV offset range for these cards.

This is a significant upgrade over Nvidia’s default voltage controls found on its Founders Edition graphics cards and many third-party cards. GPU voltage controls by default do not allow access to memory or auxiliary voltage control, and core voltage control is limited to a 20mV offset.

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This new tech will be limited to future MSI RTX 50 series graphics cards, at least for now. Nicolaychuk frustratingly explains that this tech can’t be adapted to other graphics card models (including outgoing MSI RTX 50 series GPUs), due to limitations in Nvidia’s default voltage controls. RTX 50 series graphics card models that use Nvidia’s reference design blacklist I2C devices at the driver level, making voltage controllers invisible to software trying to access them through the I2C bus.