Hi, a few days ago I bought a “Dual PCIe NVMe Adapter, PCIe 4.0 x16 to Dual NVMe Adapter and 1x Plus PCIe x16 (x8 Signal) for M.2 NVMe SSD Adapter” and installed it as specified. It works perfectly, but when copying from one NVMe to another (regardless of size), it only writes at 80 MB/s.
I’ve run several read-write tests and they always give me the same values. I tried Kdiskmark and got write results of 350 MB/s, and on disks (gnome-disk-utility) it gives me the perfect values. I’ve even run Windows 10 and yes, it works perfectly.
What’s going on?
I don’t understand anything.
Thanks.
This is the pcie adapter in mode x8x4x4
Screenshots:
PS: I’ve tested it with a live USB and it does reach the normal speed of NVME drives, copying and writing, that is, 10 times faster than here at Endeavour.