Synology DS720+ NAS - Unofficial 16GB and 32GB Memory Upgrade Tests

Just upgraded my DS720+ with DDR4 KINGSTON Client Premier 2666MHz 16GB - KCP426SD8/16 with DSM 7.2.1-69057 Update 3 version, working fine, with virtual machines I can make all memory consumed, no hiccups no visual defects in resource monitor, everything is working fine, hence it make sense to upgrade. Kingston KVR26S19D8/16 did NOT work!

Hi there. Will add useful info:
DSM 7.2 will work with 16GBDDR4-3200 SODIMM CL19, but does not work with CL22 memories of the same category (tested on Crucial)

The Crucial 8GB CT8G4SFRA266 did not work in my 720+. Just a blue blinking light. Tried reseating it several times but just a blue blinking light. Luckily I can return the module I bought direct from Crucial/

This or a 723+ both with (2.5GBe) usb3 adaptor for filesharing/domain/dns/ use only.

Just start at 06.00 mins in for the start of the test. I don't know why he took 6 mins to say not much at all.

Absolutely love this product for home use! I bought the Synology recommended 6 GB, and then found your video...I will definately upgrade to 16 GB now and run VM's off of it. I really like the bonding feature this Syno offers, work very well with downloading and streaming my media.

Thank you my man!! Just bought one of these...👍

[DS 720+] Crucial CT16G4SFRA266 (SODIMM, 16GB, 1.2V, CL19, DDR4-2666) doesn't work!

I can confirm that the rams listed below work on the 720+
Crucial CT8G4SFS8266 DDR4-2666
Samsung SRPMA100283805E859 8GB 1Rx8 PC4 3200AA M471A1K43DB1-CWE

@NASCompares thanks for the video. I wonder why lower right corner of DSM GUI is covered, specifically why that part where memory is shown in small Resource Monitor widget?

I thought the processor supports 8gb ram max

Does the device ACTUALLY use the memory over 10GB however or does it just see it and think it's using it? My guess is it sees the memory but isn't actually gaining any benefit over the 10GB limit.

I just upgraded mine with a 16GB memory and absolutely no problems whatsoever. Also put in 2 1TB Nvme cache memory sticks and no problems either. I have a 1 Gigabit router and switches and this transfers at the 108 MB -120 MB rate, which is 864-960 Mbit. Even though this is fast, it now seems slow compared transferring internally to a raid in my Mac with a raid controller card. I did bond the two ports for the heck of it, and bonded the two in my Mac. Really does not make a lot of difference.
I did try the 4Gb first, and then the 8GB, and now the 16GB. No problems with any of them.
Now I think I might expand with the dx517 to get the number of disks I need.
My mac has three 8GB disks in Raid O, so I probably will do this as a Raid 5 for storing and backup.
This is where the 2.5GB Ethernet might be nice, but then my backbone LAN would have to be, along with the router. And then all my computers and storage devices.

Some articles said it is better to use Samsung since it is close to the on board ram. True?

It will only use the 8GB anyway. according to the CPU in the 720 it only supports 8GB so even if you had 16 only 8 would be used apparantly

About your advice "MAKE SURE to check that the memory module (especially 16 and 32GB SODIMM modules) are DUAL RANK or ‘DR‘", since most 4GB/8GB memory modules are available only in SR, do they have trouble with DS220+/920+ series? Are 4GB/8GB mostly ok if it's within the official memory upgrade limit?

i had problem wheni update the fan with an Noctua... i was using on my 718+ without any problem but with the 720+ the fan stop working and the 720+ beep..

hi :) the 16gb will work without doing anything on the 720+ ? :) nothing negative ? thank you alot for your video

NASCompares not so reliable after that. The crucial 16GB does not work with the DS720 +. Crucial Model: 16GB DDR4-2666 SODIMM CT16G4SFD8266. The device does not even turn on :(

used the Kingston 16gb stick in the blog, Didn't work! Which models will actually work like in the video?? @nascompares

I'll never get those 15 minutes back. Do install a proper VM. Do proper test if the memory is being properly used. Do some proper videos.

16 GB does NOT work! Just tried to use "Crucial 16GB Single DDR4 2666 MT/s (PC4-21300) DR x8 SODIMM 260-Pin Memory - CT16G4SFD8266". LED is flashing and NAS is not starting. Don't waste your money!

Your content is amazing helped me decide which one to get not doing this to it but my put in a 6gb stick to make it 8

I just bought the Crucial 16GB RAM CT16G4SFD824A but did not work. Just a little head-up since someone tried the Crucial 16GB model CT16G4SFD8266. Hopefully NASCompares tell us the module/model number he used for this demo

You did not mention the specifics of the 16GB RAM module, i mean is it the 2400 or 2666 from Crucial, both are available on Amazon, can you please indicate which one you used for the testing, i would prefer to try what i see worked during the demo, since already i will be way out of manufacturer's recommendation

Bought one 16GB CT16G4SFD8266 but unfortunately did not work for the DS720+. Can you let me know what 16GB module did you use.

sorry if I'm going over old ground but have a question regarding 8GB crucial memory upgrades on a 920+ (couldn't see a video for the 920+ to comment on)

On one of your recent site posts, you suggest a number of memory modules that will work - one of which you recommend single rank for 8GB..

Yet in another post, you state you should ONLY use Dual Rank memory as a single rank can cause issues.

Is this only with the larger modules (which other users on Reddit are now seeing small issues with).

Are you able to make this a bit clearer as you currently suggest either are fine but single is bad..>TIA

The fact that Synology charge more than most is why people don't buy their memory.

cannot replace another 2gb ram?

Upgraded two 2411+ from 1 GB each to 3 GB Crucial memory and they're still running without any issues 8 years after.

I hope they move to AMD mobile systems or ARM soon and we get 64gb memory. All for the same price. Memory power consumption isn't going up a lot if the slots are not increasing. So 16gb or 64gb doesn't matter and it only costs $4/GB

Could you please list the partnumber/model number for the 16gb module, so i can make sure to get that exact model. Thanks, and great video.

save yourself 15 minutes, it does not work. you are welcome.

Are you still going to do the E10-M20 card with the 1618+?

looking forward to seeing same test on DS920+, great videos as usual 👍