Ryzen and ECC woes

outline:

• trying to get ecc cuz price and stuff back in november 2022
• didn't work for ubuntuserver, no boot, but works for drunkmary, boots
• ecc works for drunkmary. turns out (i discover july 2023 why...) actually it doesn't but it at least boots and can use it. just wont do the actual ECC cuz ryzen G
• come july 2023 - tries again for ECC ram cuz its EVEN cheaper. ubuntuserver still doesn't work after even more bios updates. but this time i try put the sticks in rosie and it works!
• tried a different mobo, replacing a Asrock x570 Phantom Gaming 4 with Asrock x570 Pro 4 because this is what Rosie. doesn't work! ):
• suspect lemon cpu in ubuntuserver (3600xt) vs rosie (3700x). I buy a 3700x off ebay because that would be helpful for live migrations via proxmox in the future. Do i need live migration? no. but it would be awesome and fun to learn! :D
• found some lines to actually report if multibit ECC is working in linux. Will have to paste here.
• Bonus confirmation: I gave RubberDuck the x570 PG4 to swap on his personal rig to troubleshoot suspect mobo failure. After the swap i tested the ECC memory in his just for kicks (3600x). it boots fine! This is more evidence that my 3600xt is a lemon for ecc.