Generic 48GB DDR5-5600 ECC UDIMM Quick Look

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Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 3
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 3

Several weeks ago we needed a bunch of DDR5-5600 ECC UDIMMs, and we bought a few different kits. One of them was about the most generic 48GB DDR5-5600 ECC UDIMM kit we could find. These are units from Mem-Store on eBay and were $183 per DIMM, but usually are in a $183-$189 range. Part of the reason we purchased these is that they were cheap. The other reason was that we just needed memory, and we could only get one of the V-Color kits at the time. To say this was one of the kits we were most nervous about might be an understatement. Still, they have worked well thus far.

Previously, we looked at the Micron 32GB DDR5-5600 ECC UDIMM Kit and the V-Color 96GB DDR5-5600 48GB x2 ECC UDIMM Kit. We purchased these on the eBay Mem-Store store that you can find an affiliate link to here.

Generic 96GB DDR5-5600 48GB ECC UDIMM Quick Look

When the box arrived, we opened it and we simply got two DIMMs packaged in bubble wrap and then ESD bags.

Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 1
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 1

taking it out of the bag, we get DDR5-5600 and PC5-44800E markings, and that the module was QC Passed.

Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 2
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 2

Something notable here is not just the lack of a big-name manufacturer on the module’s label. Even the DRAM chips lack common markings. Samsung, Micron, or SK Hynix chips? Another manufacturer? Are they rejects from a manufacturer? These chips even look different.

Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 3
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 3

On the rear we can see the we do not get a lot of additional information.

Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 4
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 4

Here are two installed in the Gigabyte R113-C10 server.

Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 5
Generic 96GB 48GB X2 3Gx8 2Rx8 DDR5 5600 PC5 44800 ECC UDIMM Kit 5

We used these in a recent video where we put them in the most popular server barebones on Newegg right now.

The main advantage of these is being able to run them in the lower-cost servers and workstations that can use ECC UDIMMs but not ECC RDIMMs. In the DDR5 generation, UDIMMs and RDIMMs are keyed differently, so you have to use one or the other in platforms.

Gigabyte R113 C10 AA02 With 192GB DDR5 And AMD EPYC 4464P CPU
Gigabyte R113 C10 AA02 With 192GB DDR5 And AMD EPYC 4464P CPU

We ran four of these modules for 192GB in the Gigabyte server. We have also used two in the Lenovo ThinkSystem ST45 V3 and four in the ST50 V3.

Lenovo ST45 V3 96GB Base
Lenovo ST45 V3 96GB Base

These modules continue to work in systems we try them in, even when like the ST45 V3 the system is rated for at most 32GB modules.

Final Words

With the V-Color 2x 48GB kit going from $399 to $459 over the past few weeks, this is around $374 for 96GB making it notably cheaper. At the same time, the one year warranty and coming in about as generic as they come might not make folks feel overly confident in purchasing them. These are not modules we are going to install in a data center, but we are instead going to keep in the studio and lab for extra modules. That might be too conservative. Still, we wanted to at least show folks these modules since many may have different opinions on them.

Where to Buy

We purchased these on the eBay Mem-Store store you can find an affiliate link to here.

7 COMMENTS

  1. The horizontal lines on the DRAM chips mean they’re likely factory balling rejects.

    https://electronics.stackexchange.com/questions/222682/odd-markings-on-flash-ics-are-these-factory-rejects

    I bought some reallly really cheap SSDs that had similar markings, and someone actually contacted the flash manufacturer:

    > We do mark products this way. It is a type of part we sell that may have a mechanical defect, but often tested electrically good. We sell it as risk product, as is, at a discount and do a 3 bar deface on it so it cannot be returned as an all good device for RMA. The mechanical defect typically will not let it pass our automated scan steps. Typically it fails for coplanarity or could have a missing or smashed ball. Folks are willing to rework the part and are supposed to retest it. However we usually advise customers to restrict these devices to USB apps or lower tier apps only as they may not meet all performance standards. As well, we cannot control the customer rework process so again we will not warranty such a device.

    If the factory has a chip that passed e-test, but had a mechanical issue, they sell it on as something that can potentially be re-worked, but marked in a way where it can’t be resold as new.

  2. I’ve purchased memory from Mem-Store several times for my home workstations and servers. I’ve never had a functional problem with any of it and they’ve always been very responsive to answer questions about compatibility for a specific computer.

  3. I bought a couple dozen of these 48gb ecc udimm from memstore and they were all trash. I returned the ones that immediately failed memtest (about half), but had to eventually toss the other half I stupidly held onto, when the servers they were installed in would frequently crash. It’s cheap for a reason.

  4. There are 2 new manufacturers in China, cxmt and not so new nanya…
    I didn’t think they had qualified 5600 yet, but you get what you pay for

  5. @Jeremy As a counter-objective, I’ve purchased many memory modules from mem-store over the years including multiple sets of the 48 GiB DIMMs this article is about. No problems with any of them. None have been DOA. None of have been defective. None have caused instability.

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