B450 lacks a screen when paired with a modern graphics card.
B450 lacks a screen when paired with a modern graphics card.
I own a Gigabyte Aorus B450 pro equipped with Wi-Fi, a 2600x CPU, two 8GB RAM modules, and a 750W Corsair power supply. The system starts up smoothly but no display appears when using the three GPUs in the first x16 slot. The cards listed are 3050ti, 1060, and an unknown model (likely ATI), though it seems the main issue is power delivery. The display shows the unknown card in the second and third x16 slots, but the other slots don’t work—especially the third one which is blocked by USB headers. I’ve checked all connections and confirmed no bent pins. Have others experienced similar problems? Gigabyte says the board is fine, but at least the first slot seems faulty.
Just so I'm understanding your probelm correctly, you have tried 3 different GPUs in your PC, and when booting up you get no display? Are you plugging your display cable into your graphics card or your motherboard?
I forgot about the second question. Plugging the display cable into the GPU is tricky since the CPU doesn’t have built-in graphics. I looked at other GPUs and tested the PSU by running another machine, but I’m unsure why Gigabyte still says everything is fine. The first slot in the motherboard seems faulty, but I’m not sure why it’s giving a positive result.
No BIOS option matches what you're looking for. You're using version 62, but the latest updates seem to skip over these details in the release notes.
Yes, you can verify if CSM is enabled or disabled by navigating to the Boot menu in your BIOS settings.
I believe the variation between these three models lies in UEFI compatibility. The 3050ti and 1060 support UEFI, whereas the unknown model does not. I suspect you should adjust UEFI settings in the BIOS (turn off fast boot, disable CSM, set storage boot only, prioritize UEFI for other devices). Proceed with caution—changing these settings might require reinstalling Windows if your system isn’t already UEFI-compatible. If you’re using a non-UEFI setup and switch to UEFI, you’ll likely need to reinstall Windows or use a conversion tool to adjust the MBR and enable proper booting. Be sure to reset the CMOS after making changes, especially if you’re unfamiliar with the process. There’s an article on checking whether your Windows VM uses EFI/UEFI or Legacy BIOS firmware (parallels.com) that can help confirm your installation type.