Only two lanes are supporting SSD functionality while four are required.
Only two lanes are supporting SSD functionality while four are required.
My CPU setup includes a Ryzen 5600g processor. The motherboard is Gigabyte B550m DS3H with an SSD. The GPU used is a WD Green SN350 1TB, paired with an Radeon 5600XT. It's installed in the M2A slot. The issue I'm encountering is that the SSD can support up to 4 PCIe lanes, yet it only operates at 2 lanes, which lowers performance. I've checked all BIOS settings, but nothing changes the lane count. This problem has been present even before adding the GPU, so I'm certain the system isn't lacking PCIe lanes overall. Since I don’t have any other PCIe-enabled devices besides this SSD and GPU, it confirms the issue lies with the available lanes.
Current board version. Most recent BIOS updates available. Support for M2 slot and M2A configuration.