Help selecting/finding DDR4 3200Mhz ECC Dual Channel/Rank 32GB (2x16GB) DIMM

[CaptainKen]

I'm going to bite the bullet after reading multiple articles and threads on using ECC RAM. Seems there are limited choices however as follows.

 

My my applicable main build components are:

• Asus TUF GAMING X570-PLUS (WI-FI) ATX AM4 Motherboard
• AMD Ryzen 5 5600X 3.7 GHz 6-Core Processor

 

Based on this article I assume that I should avoid UDIMM and SODIMM, but go for either RDIMM or LRDIMM?

DIMM Types: UDIMM vs. RDIMM vs. LRDIMM

 

The main brands appear to be: Corsair, Crucial, Crucial by Micron (?), Micron, Kingston, PYN, Nemix, T-Force, V-Color and Patriot.

 

After searching Amazon, Best Buy, Newegg, B&H, MemoryC, Adorama as well as the manufacturers sites the only options I've found and that I assume are compatible with my hardware are:

32GB 2x16GB DDR4-3200 PC4-25600 2Rx8 RDIMM ECC Registered Memory by NEMIX RAM

Kingston DDR4 3200MT/s* ECC Registered DIMM

Kingston DDR4 3200MT/s* ECC Registered VLP DIMM

Crucial 32GB DDR4 3200 (PC4-25600) RDIMM CL22 Server Memory Module

Micron 16GB DDR4-3200 RDIMM 2Rx8 CL22 MTA18ASF2G72PDZ-3G2R

 

The two Kingston page links have so many options on each I have no idea how to begin choosing.

[JorgeB]

RDIMM and LRDIMM are for server boards, your board will only accept UDIMMs, AKA unbuffered ECC DIMMs.

[CaptainKen]

Thank you for your response and details. 

[CaptainKen]

In this video it seems rather extreme recommendation to go with 1GB RAM per TB on a NAS build. Can someone please clarify?

 

[ChatNoir]

4 hours ago, CaptainKen said:

In this video it seems rather extreme recommendation to go with 1GB RAM per TB on a NAS build. Can someone please clarify?

Its a video about FreeNAS, not Unraid.

[CaptainKen]

Thanks for clarifying. My rationalization was perhaps it had something to do with the ZFS file system that they both use. I should have clarified this myself.

[ChatNoir]

8 hours ago, CaptainKen said:

My rationalization was perhaps it had something to do with the ZFS file system

While there is an unofficial plugin for ZFS in Unraid, it is not officially supported.

Once ZFS is officially integrated (6.12, 6.13 ?), I suppose that the Limetech team will update the system requirements if they feel it is necessary (bottom of the page : https://unraid.net/product ).