Now celebrating 48 hours of uptime on the media server that was previously kernel panicing daily for months. Turns out this was due to a bios issue, possibly in combination with other things, but for sure the bios update seems to have fixed it.

After troubleshooting damn near every other thing including memtest over night, I finally got around to looking into a bios update, of which there had been several betas and a stable release since i last updated mine only a year ago.