RX 6600XT & ROG STRIX B460 I GAMING = black screen

[tiago0289]

Hi

I have a Gigabyte RX 6600 XT GPU that shows a black screen even before the BIOS loads, but this only happens when I connect this GPU to my Rog Strix B460I Gaming motherboard.

I connected other GPUs (RTX 4080, RX 460, and GTX 970) to this motherboard, and they all work fine. If I connect the RX 6600 XT to another motherboard, it also works without any issues; the black screen only occurs when I combine the B460-I with the RX 6600 XT.

I have already changed the power supply, cables, tried configuring the PCI slot in the BIOS, updated the BIOS, and nothing helped.

An interesting point: I have a PCIe x16 to x1 adapter, and when I use this adapter, the GPU works normally.
I don't know what else to try, and it seems that neither the motherboard nor the GPU has any defects. It's only when I combine the two that I get this black screen. Any idea how to get these two to work together?

Best Regards

 

[Ruru]

Have you tried other connectors from the 6600 XT? Some cards can be picky when connecting a monitor to specific connectors.

 

[tiago0289]

Yes. I had tried with two different cables in different ports, but after your suggestion, I decided to try a different monitor as well. Two monitors, two different cables (1 HDMI and 1 DisplayPort), tested in all GPU ports, and the black screen remains.

 

[Ruru]

Yes. I had tried with two different cables in different ports, but after your suggestion, I decided to try a different monitor as well. Two monitors, two different cables (1 HDMI and 1 DisplayPort), tested in all GPU ports, and the black screen remains.

Sounds weird after all those diagnostic attempts. Starts to feel like a pure compatibility issue.