Overclockable server-class ECC RAM options expand as AMD Threadripper chips arrive — G.Skill introduces Zeta R5 Neo DDR5-6400 RDIMMs

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Overclockable ECC DIMMs for AMD's Ryzen Threadripper 7000-series CPUs.

G.Skill
(Image credit: G.Skill)

G.Skill has introduced its first overclockable ECC memory modules, the Zeta R5 Neo, for AMD's Ryzen Threadripper 7000-series processors. The new memory kits are available in quad-channel configurations and can be used for WRX90 and TRX50 platforms designed for workstations and high-end desktops.

The Zeta R5 Neo product lineup includes two DDR5-6400 CL32-39-39-102 products: a quad-channel 64 GB kit comprising of four 16 GB R-DIMMs and a quad-channel 128 GB kit consisting of four 32 GB R-DIMM modules. For TRX50, only one kit is needed, whereas WRX90 will require two quad-channel kits. All modules support AMD's EXPO profiles for easier setup and a simplistic heat spreader.

G.Skill says that just like other high-end memory modules, its Zeta R5 Neo RDIMMs are based on cherry-picked memory ICs, so they are generally designed to be overclocked. However, nobody knows how fast can they go since it depends on many factors.

(Image credit: G.Skill)

Being aimed at both enthusiasts with very deep pockets and professionals, AMD's Ryzen Threadripper 7000-series processors use registered memory modules with ECC to ensure the utmost reliability of machines with 1TB or more of DRAM. To that end, memory module suppliers are rolling out enthusiast-grade memory modules with ECC tailored specifically for AMD's latest Threadripper processors.

G.Skill says its Zeta R5 Neo memory kits for AMD's Ryzen Threadripper 7000-series processors will be available this month.

Anton Shilov
Anton Shilov
Contributing Writer

Anton Shilov is a contributing writer at Tom’s Hardware. Over the past couple of decades, he has covered everything from CPUs and GPUs to supercomputers and from modern process technologies and latest fab tools to high-tech industry trends.

6 Comments Comment from the forums
  • bit_user
    Too bad these are only RDIMMs. I checked, but couldn't find G.Skill selling any DDR5-6400 ECC UDIMMs.
    Reply
  • thestryker
    bit_user said:
    Too bad these are only RDIMMs. I checked, but couldn't find G.Skill selling any DDR5-6400 ECC UDIMMs.
    Nobody is selling anything but 4800 UDIMMs when it comes to ECC. On the RDIMM side there's 4800, 5600 (JEDEC and XMP), 6000, and 6400.

    Just a wild guess on my part, but I've been thinking ECC UDIMM demand is probably low compared to RDIMM since only desktop CPUs use it. I'd have been pretty happy if there was anything faster than 4800 (I'm not sure I'd replace what I have now though).
    Reply
  • TJ Hooker
    thestryker said:
    Nobody is selling anything but 4800 UDIMMs when it comes to ECC. On the RDIMM side there's 4800, 5600 (JEDEC and XMP), 6000, and 6400.

    Just a wild guess on my part, but I've been thinking ECC UDIMM demand is probably low compared to RDIMM since only desktop CPUs use it. I'd have been pretty happy if there was anything faster than 4800 (I'm not sure I'd replace what I have now though).
    You can get DDR5 ECC UDIMMs at least as fast as 5600 MT/s.

    https://www.kingston.com/en/memory/server-premier/ddr5-5600mts-ecc-unbuffered-dimm
    Reply
  • thestryker
    TJ Hooker said:
    You can get DDR5 ECC UDIMMs at least as fast as 5600 MT/s.

    https://www.kingston.com/en/memory/server-premier/ddr5-5600mts-ecc-unbuffered-dimm
    nice! must have been the last month or two those came out
    Reply
  • bit_user
    thestryker said:
    nice! must have been the last month or two those came out
    Eh, it's been at least that long ago. I forget when it first came to my attention.

    Did you ever check the QVL for your motherboard? There's also some SK Hynix DDR5-5600 that's been qualified, but seems virtually impossible to find.
    Reply
  • thestryker
    bit_user said:
    Did you ever check the QVL for your motherboard? There's also some SK Hynix DDR5-5600 that's been qualified, but seems virtually impossible to find.
    Retail SK Hynix memory modules seem few and far between in NA/EU in general. Nothing other than 4800 modules even appear on their website right now. Even then I can't find any traces of the 32GB modules period.
    Reply