PCIe 1.x is often quoted to support a data rate of 250 MB/s in each direction, per lane.
So two directions gives me 500MB/s.
So Dell is saying you should be able to connect either type device to their sata port and it should auto switch and work.
I have an old Dell Dimension E521 running 32-bit Windows Vista.
How do I find out if the PCIe bus on the E521 is V1.x or V2.0? On the "Specification" section of the User Manual, it says that it is PCIe V1.0A. However, it claims a maximum speed of 500MB/s for x1 slot. This does not seem to make sense. Only V2.0 PCIe could achieve that speed.
On the SATA part, the User Manual states it is SATA 1.0 and 2.0. What does this mean?