One of the key selling points of AMD's Ryzen 7000-series and X670E motherboards was support for the PCIe 5.0 specification and SSDs with a PCIe 5.0 x4 interface. But some users with AMD X670E motherboards are encountering significant problems with some PCIe 5.0 SSDs, as they are being downgraded to PCIe 1.0 speeds, which drastically reduce performance, according to Wccf Tech.
The issue has affected users across multiple X670E motherboard brands, including Asus and MSI, who initially experienced normal speeds before encountering significant slowdowns. The issue also affects various drives, including, but not limited to, Crucial's T700 and T705. In fact, engineers from Crucial confirmed that the issue persists on various motherboards and drives — so it's not specific to actual hardware, but rather to the platform itself (and/or the way PCIe 5.0 slots are implemented).
