This board supports an additional GPU through proper connectivity and driver configuration.
This board supports an additional GPU through proper connectivity and driver configuration.
Checking the manual for details on dual GPU support and lane configuration. It’s important to understand whether the B550 Phantom Gaming 4 can handle two different GPUs and how the BIOS manages lane splitting or chipset routing. For specifics about PCIe3 placement and lane allocation, consulting the official ASRock documentation or forums is recommended.
You're likely using a budget motherboard designed for dual GPU setups, which is unusual since such configurations typically require more robust components. Your motherboard features a top PCI-e slot supporting 16 lanes of PCI-e 3.0/4.0 (if your CPU supports it), and another x16 slot for 4 lanes of PCI-E 3.0.
The second x16 port is connected only to four channels, making x8 and x8 unattainable.