See if a different Bios is detected for any of the cards when you change the Bios switch to the side you didn't change. If they are all the same, put the Bios switch on the side closest to the I/O ports and try flashing the original Bios from the cards with only the 1750 MHz straps copied higher. After you flash the Bios try running them with a 1150 MHz core clock and 2000 MHz memory clock.
I might found the sinner! one of the cards in other bios mode makes the whole system crash at bootup. The other four shows this as their second bios
4 cards: 8gb · ellesmere rx 570 113-2e366du-s4l samsung · polaris10
1 card: 8gb · ellesmere rx 570 113-2e366au-x4z samsung · polaris10
Im assuming that means they are all samsung memory, but how to flash a broken bios that doesnt even alow the rig to boot? Both bios position wont boot
The other 4 are now running at your suggested bios mod and clock, seems fine for now
Am I losing hashrate since im running ethos and not windows with amd blockchain drivers?