Id say it would be very unlikely for that little of a bend in stranded cables to break one cable, forget multiple sets. Now different story if its copper clad aluminum or something sub-par single conductor, like crappy cat5. I could then see that being a possibility. A connector crimped on a little too much or something, causing a failure. I chased the bad (single) sata cable angle for days bro and every time I thought it had worked, it didnt. Again, I did not have the backplane to contend with. That adds a layer of complexity to the situation. So my next question is how much time is passing before you consider it "working" or "not working", and how are you determining this? Badblocks or dd reads? Could it be that it is always doing it, just ironically more (not working) or less (working) frequently? What are the constants, what are variables. It seems you have tried different variables, now try changing some constants (if you can), boards, powers, rams, etc. Maybe try booting into a Linux environment and seeing if the errors persist. Not sure what else to add here. Some unseen compatability issues maybe? Its a mystery when these show up sometimes.



Im pulling for you. You will figure it out eventually, and when you do please let us all know.