@hilde45 When you go for it, a desktop computer with a decent power supply unit can be very useful as a cheap way to burn-in new cables before you try them out.
My computer has a 1000 watt PSU, so my m.o. now is to cook cables (usually in a daisy chain) alternating between 6 amps and 3.75 amps, continuously, for 2 or 3 days before I let them sit in my system with some ordinary usage for at least a day before starting to make decisions. That's a bare minimum.