I just wanted to chime in to say that I am experiencing the same issue (AMD EPYC 7453 processor on a Gigabyte MZ32-AR0 Rev. 3 motherboard). I encountered it on both 24.04 and 24.10. Reverting back to Cobia (23.10.2) with an otherwise identical configuration resolves the issue. (Unfortunately, because I reverted I won’t have any further useful information for troubleshooting.)