Sorry if I wrote it weird. The GTX1060 would still be in the x16 slot. The rx550 would stay in the inferior one. That being said, the 550 has max 112gb/s speed (almost 50% then) so can I assume around 40% at least?
So, if that were true, no problem on my end. Just consider, I don't need all that power.
That being said, without unplugging it, there is no safe way of deactivating PCIe 1 slot right (from bios or something)? Cause that would give me x4 in the slot. I will never need to use the RX550 at the same time as the other slots.
If not, I'll just swap the 2 cards every time, but that's 10min ~5 times a month...