I recently bought a 2TB Adata premium M.2 Gen 4 SSD for my PS5 for about 93 CAD (68 USD). It works fine, but I'm noticing the speed is only about 25% of what it should be according to the specs. I double-checked its health with CrystalDiskInfo and ran tests with HD Tune, and everything seems in order.
My motherboard is the Aorus X470 Ultra Gaming. On their site, it lists two M.2 connectors: one supports PCIe 3.0 and the other supports PCIe 2.0. I suspect I'm using the PCIe 2.0 slot (M2B), which might be why I'm not getting the expected speeds. However, I can't find clear information about the M2B socket's capabilities online. Can anyone help me figure this out?
2 Answers
Totally makes sense! Putting a PCIe 4.0 drive in a PCIe 3.0 slot will definitely cut its speed in half. If you're in the PCIe 2.0 slot, it’s going to be even slower, like you said!
Your M.2 Gen 4 SSD is meant to run on PCIe 4.0 x4, but your specs show that you're using a PCIe 2.0 x4 slot. That’s around 25% of the potential speed your SSD can achieve!
Yes, exactly! The '2.0' in PCIe means it's only the second generation, which is slower. If you can switch to a PCIe 3.0 slot, you'll see a noticeable improvement!
Right? I moved mine from a PCIe 2.0 to a PCIe 3.0 slot and it improved a lot, but you might not hit max speeds unless you upgrade to a PCIe 4.0 setup.