My AM5 system doesn't post with 128GB of 5600 DDR5 at higher than 4400 at JEDEC timings and voltage. 2 DIMMs are fine. 4 DIMMs... rip. So I'd say the present of DIMMs is already a bit shaky. DIMMs are great for lots of cheap RAM. I paid a lot less than what I'd have to pay for the equivalent size of RAM in a Framework desktop.