Asrock b550 steel legend - High speed secondary NVMe drive
Asrock b550 steel legend - High speed secondary NVMe drive
I just completed a fresh build using a B550 Steel Legend and tested it with two identical NVMes (WB Black SN750). The one in the top slot functions correctly, supporting Gen3x4. But the lower slot only supports Gen3x2, which reduces the speed by half. The manufacturer lists it as a Gen3x2 slot, similar to other models. I’m curious why this limitation exists and if there’s a way to change it. Seeing the specs from a Strix B550 shows the top slot has NVMe support, while the second slot doesn’t.
Some boards block two SATA ports to enable the second M.2 slot in X4 mode. Asrock hasn't implemented the necessary switches yet. Let me verify.
It appears Steel Legend may turn off two SATA ports at once, though I'm not sure.