This isn’t really a deep dive into the tech, it’s just an SEO placeholder for a company that sells memory modules.

That aside, people usually learn about RDIMM the hard way when they need to get ECC unbuffered RAM for something like HEDT/workstation or tower server Xeon/i3/Ryzen with ECC support but buy the cheaper RDIMM instead of the ECC UDIMM modules only to figure out they don’t work!

Worked on building a new desktop this month. Most AMD consumer CPUs support unbuffered ECC RAM to help protect against inflight bit flipped. DDR5 standard has chip level built-in ECC to protect bit flipping on the RAM but not in-flight. Went with Kingston again because CORSAIR only sells quad-kits. Dual-kits should be a thing with CORSAIR because most iATX motherboards only have two slots for RAM. Kingston marketing and sales understand this.

My POV, ECC should be standard for inflight on all desktops. The majority of desktop (business and education) is used for content creation versus pure content consumption. And ECC needs to ditch 1 bit and move to 2 bit or more masking.

Related:

The Difference Between a Standard DIMM and a Cudimm or Csodimm [Crucial/Micron] (16.11.2024)

https://news.ycombinator.com/item?id=42102076

Yeah, but what about CAMM2? I need MORE ACRONYMS!! ;)

it just dawned on me how trivially simple it would be for memory controllers to implement ECC in UDIMMs, for every N words, reserve 1 word for parity. You gain ECC for a small decrease in capacity. Since the memory controller is on the CPU, it can easily abstract this away.