Hello, stupid question. Do i need to have a specific video card model to support the HDR? Mine one is an Intel HD Graphics 4600. In any case, well done and thank you for the build
Your IGP is too old unfortunately, IIRC it needs to be Gen9 or newer with HDMI 2.0 (or compatible LSPCON) capability to actually support HDR.
Ideally Apollo/Gemini/Kaby/Coffee Lake or newer.