(There's an issue where the controller can get stuck and only a complete power down seems to reset it.) Wait ~20 seconds for the board to discharge.

Power down the motherboard completely (such that the power supply is shut off or unplugged) and power isn't coming in through USB.

Ensure all Gigabyte SDK DLLs are present (see Dependencies).

Attempt running the tool in an elevated command prompt.

Verify you're using a supported motherboard.

RGBFusionTool.exe -verbose -zone=0 -cycle=32 -zone=1 -cycle=16 -zone=2 -cycle=8 -zone=3 -cycle=4 NET Core 3.1, then copy the build output to a single directory.

F_CENTRAL_msvcr110d_x86, rename to msvcr110d.dll.

F_CENTRAL_mfc110ud_x86, rename to mfc110ud.dll.

Otherwise the solution is to fetch them from Visual Studio 2012 Update 5: It may be possible to rename mfc110u.dll and msvcr110.dll from the official redistributable package to their respective debug ( d) versions. Unfortunately, GvLedLib.dll was built against a debug version of the VS2012 SDK. Get GvBiosLib.dll, GvDisplay.dll, and GvLedLib.dll from a Gigabyte RGB Fusion Utility (the version of GvLedLib.dll included in SDKs 18.1004.1 to 19.0311.1 have a missing dependency on GvIllumLib.dll)

Get GLedApi.dll, YccV2.dll, and layout.ini from Gigabyte's RGB Fusion SDK. You can build RGB Fusion Tool locally (see below), install it as a Chocolatey package ( choco install rgbfusiontool), or extract one of the builds listed on GitHub Releases.

Gigabyte motherboard rgb