Upgrade Synology DS1819+ RAM to 32GB

Recently got my hands on a Synology DS1819+ which offers a number of great features, one of which is the ability to support 32GB memory! Giving me more than plenty of resources for all kinds of Docker containers, virtual machines, and Synology applications.

In this quick guide I’ll detail how to upgrade your Synology DS1819+ to 32GB of RAM.

Items needed:

How to upgrade DS1819+ memory to 32GB

  1. Power down and unplug your Synology DS1819+
  2. Next turn the NAS unit over and remove the two screws
    Synology DS1819+ RAM cover
  3. Remove the factory installed 4GB memory module.
    Synology DS1819+ Memory
  4. Now install the Crucial 32GB kit memory cards into the DS1819+.
    synology ds1819 32gb memory
  5. Finally re-install the memory cover on the bottom of the NAS and power it back on. It may take the DS1819+ a few minutes to completely load while it does its memory check the first time.

It’s that simple. I certainly like how easy it is to access the memory slots compared to older Synology NAS models. A very welcomed improvement indeed.

14 thoughts on “Upgrade Synology DS1819+ RAM to 32GB”

  1. Simple compared to older Models.
    But I think the biggest news is that this is the first “budget” Synology NAS that can make use of ECC-Ram. No silent Data-corruption from Bit-Errors in Memory anymore.

  2. I was wondering if the DS1819+ will take 64GB of RAM – I have a DS1815+ that was suppose to max out at 6GB, but I saw someone had a link for Crucial memory to bump it to 16GB (2 x8GB). I have been running that configuration for a few years without incident. I’m looking to build a new DS1819+ setup with 8x8TB, 64GB and SSD caching (still working on some of the other details and I already have my 1815+ networked with LACP with all 4 ports – will continue that). Crucial has 32GB modules as does Samsung – I’ll let you know if I get to it.

    1. Peter,

      I believe the Synology DS1819+ only supports up to 32GB of RAM and that’s the highest I’ve tried. If you do get 64GB of RAM to work I’d love to hear about it!

      -Michael

  3. Hi Michael,
    I just got my Synology DS1819+ and found your post very promising for the crucial memory (Crucial 32GB Kit (16GBx2) DDR4 2400 MT/s (PC4-19200) DR x8 SODIMM 260-Pin Memory – CT2K16G4SFD824A) that you used and recommend..Does it post any errors when booting up the DS1819+? I read a few posts if the memory is not compatible it will post errors.
    If you can shed any light on this it would be greatly appreciated.
    Steve

    1. Hey Steve, the DS1819+ has had no issues booting up since the install of the new memory. The initial boot can take a bit longer as I’ve mentioned above, but beyond that the system has been stable.

      -Michael

  4. I bought the same crucial RAM sticks as described in this article. I put both modules in and the NAS is stuck on boot with a blue light for 20 minutes until I unplug. I thought perhaps one of the modules are defect but no. I put in only one module at a time and both times the NAS boots up and recognizes 16GB RAM. Every time I put in both modules it is stuck again on boot with only a blue light. Clearly there’s nothing obviously wrong with the memory modules. What should I do?

    1. Hmmm… I seem to be having the same issue with my DS1819+, where it just flashes the blue power light after I installed 32gb ram (2 x 16gb Crucial CT2K16G4SFD824A ). I gave it about 40 mins and still flashing. Did you have any success on getting this to boot?

      1. Quick update:

        I got two CT16G4TFD8266 ECC DIMMS to replace the two CT16G4SFD824A DIMMS and the boot took less than ten minutes, all RAM is recognized and I received zero warnings.

        What’s interesting is that Synology only lists two officially supported DDR4 DIMMS on their site, a 4GB non-ECC and a 16GB ECC, both at 2666 speeds, yet the 4GB that shipped with my 1819+ was a 2400.

        It’s hard to traverse this landscape with little reliable info.

    1. Exactly the same experience I just had. Just finished mine, and I measured the time to be about 4 minutes. Shutdown to system boot up, with install in between was ~6 minutes.

      I also used CT2K16G4SFD8266 – which is the 32gb kit at 2666MT/s (most others have used the 2440MT/s version) and it works fine. DSM did warn about using non-Synology memory on the first boot, but it is just a warning.

      I purchased from https://smile.amazon.com/gp/product/B071H38422/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 – Aventis Systems @ $159 USD.

  5. Does memory speed matter? Crucial said this was compatible so got
    Crucial 16GB Kit (8GBx2) DDR4 3200 MT/s (PC4-25600) CL22 SR x8 Unbuffered SODIMM 260-Pin Memory – CT2K8G4SFS832A
    by Crucial

    Thanks.

  6. I bought the 2x8GB Crucial 2666MT/s memory as well. Got an alert in software “Detected non-Synology memory module. Please refer to our official website and select authentic Synology memory modules for better system reliability.
    1. Inserted incompatible memory modules” but seems to work. It’s $300+ cheaper so will see.

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