Do I have this correct?

Why would you lose lanes? M.2_1 gets 4 PCIE4 lanes from CPU and M.2_2 has another 4 PCIE4 lanes from PCH. I don't know how would you saturate all PCH lanes.

Just keep your main NVME drive in the top slot to use CPU lanes on it.
 
Why would you lose lanes? M.2_1 gets 4 PCIE4 lanes from CPU and M.2_2 has another 4 PCIE4 lanes from PCH. I don't know how would you saturate all PCH lanes.

Just keep your main NVME drive in the top slot to use CPU lanes on it.

TBH I have no idea how Ryzen boards work. Or the CPUs. Have been too busy to spend hours reading on it.

It's only for my music collection. That is literally it. It was £50 cheaper than another NVME (which are starting to shoot up in price now) and I won't need to worry about it overheating etc.
 
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