How can I tell if a riser card is bad? All 6 of my cards are powered on but Windows 10 only shows 5. I have tried moving the cards around to different slots and am pretty confident that all 6 of them are working. Prior to changing the power supply I was successfully mining with all 6 cards with no problems. My cards are XFX RX 480 8 GB black edition. They all have Samsung memory. I made 1 change to the bios which is copying the 1750 timing strap to the 2000. I have installed AMD 16.9.2 drivers and used the Pixel Clock Patcher.
Thanks for any advice.