Rockpro64 PCI-Express Issue.

[pgwipeout]

@t4_4t @pgwipeout Thank you for sharing these interesting findings!

My board is v2.1 2018-07-02 and it does NOT have the mentioned capacitors. I am not sure about the jumpers you mentioned but I don't see any wires there. Would it make sense to add them?

Here's a picture of my unit, I will try to supply a better picture later:



Also, could you please describe the performance improvement you gained? Currently, I am getting only 560-580 MB/s in `hdparm --direct -t` test with a Samsung 970 Evo that is supposed to be much faster as well as a kernel panic when I insert a Dualport NIC (both cards are PCIe x4).

Okay, your board does not have the resistors pairs, but it does have the resistor/capacitor pairs in line of the data lines.
Here's my board after I removed the resistors and added the jumpers around the resistor/capacitor pairs. 
Don't pick on my soldering job, please.

  Annotation 2020-04-22 105427.jpg (Size: 217.19 KB / Downloads: 632)