Gigabyte Aorus z590 pro AX uses a constant red light for diagnostics.
Gigabyte Aorus z590 pro AX uses a constant red light for diagnostics.
Hello ... I'm not sure if anyone else encountered this issue before. I checked everywhere, but the setup seems correct. It's an Aorus Z590 Pro Ax with Intel i7 11700K, 16 GB RAM, Aorus 3333, 850W PSU, and a GTX 660 WindForce GPU. Everything is new except the GPU. I'm using a MSI Optix MAG322CQR curved 2K monitor connected via DisplayPort. All functions work properly once the PC starts. The concern is the VGA red light stays on continuously — it doesn't turn off even when the system is running. List of actions: updated BIOS to F8, verified all RAM slots, checked connections, reset CMOS, changed fast boot settings, tried different VGA configurations. The light remained active after startup. I figured it out — when the screen first appears, it takes a short time to detect the graphics card signal. This causes the motherboard to interpret no display and keep the light illuminated. I simply turned the screen on beforehand to wait for the signal, which resolved the issue.