Memory test ReadyNAS Ultra 2

daveevans76 wrote:
I use my NAS to stream movies to APTV2. Is there a large gain to be had with upgrading from 1GB to 2GB for uploading and streaming content?

I'd start from the other direction: Is there any evidence that your NAS is underpowered (are movies stalling/stuttering during playback, etc)?

Even BluRay is limited to about 6 MB/s transfer speeds - though you want some margin over that. However an Ultra should be able to easily keep up as long as you are not doing real-time transcoding.

Good point. I got thinking about it when I noticed the movies stuttering lately. That also could have to do with the fact that my hardware stopped working. Just had the device replaced through RMA and replaced with bigger, faster HDDs. I will see if that makes a difference.

besokare wrote:
Kingston KVR1333D3S8S9/2G works too. Had it for 1 week now and no errors. http://www.kingston.com/dataSheets/KVR1333D3S8S9_2G.pdf It has 8 chips in total, 4 on each side.

I second this, works great for me too in my Netgear ReadyNAS Ultra 2. Picked it up for about 16 USD, which wasn't much money in swedish currency at least.
Running 2 weeks now and all 3 initial memory tests came back without errors. 3 hours, 8h, 3h.

3 benefits that I have noticed, in my case which may NOT apply to anyone else, are:
1. Overall performance when I log in as admin and start to check settings have increased. It wasn't bad before, but more loading times occured with 1GB than with 2GB.
2. Performance when entering/browsing large folders via the CIFS protocol, ie in my case, folders with 550+ subfolders and/or files have definitely increased.
3. ReadyDNLA/Skifta have both increased performance (since they are closely paired perhaps?) This shows in my PS3 and my Android phone whenever I enter a folder for streaming movies/music.
I can't show you numbers on this though.

Addons enabled are Netgear Remote and Skifta, no others have been tested but I suppose the more addons enabled, the more RAM is used as mentioned earlier by others.

Copy speed have NOT increased however, it shoves around between 90-110mb/s from the NAS and 27-32Mb/s to the NAS which is sufficient for me.
Jumbo frames didn't work before my RAM upgrade and I doubt that will change after this. All critera are met according to various sources but it won't work for me. If I have the time I will tinker with this.

Edit: Spelling

Hi guys!

Have you used any guide for installing extra memory (breakdown chart etc.)?
Also I am going to run kmotion with 4 wireless IP-cameras as well as Sabnzb+/Couchpotato/Sickbeard and stream movies to my Raspberry Pi (running Raspbmc), do you think I will benefit from a memory upgrade?

As I read here earlier I am thinking about going for the Kingston 2048MB DDR3 PC3-10600 1333MHz (KVR1333D3S8S9/2G), any objections?
I can't seem to find the speed for the stock memory, does anyone know this?

TheSwede86 wrote:

Hi guys! Have you used any guide for installing extra memory (breakdown chart etc.)? Also I am going to run kmotion with 4 wireless IP-cameras as well as Sabnzb+/Couchpotato/Sickbeard and stream movies to my Raspberry Pi (running Raspbmc), do you think I will benefit from a memory upgrade? As I read here earlier I am thinking about going for the Kingston 2048MB DDR3 PC3-10600 1333MHz (KVR1333D3S8S9/2G), any objections? I can't seem to find the speed for the stock memory, does anyone know this?

I just opened the side covers, it was easy. Just remember to disconnect from the power grid and make sure you are not static yourself.

Streaming does benefit from more RAM, how much however is hard to tell as it depends on many things. It depends on the LAN-switches and routers, it depends on your clients hardware, etc.

Well, I am still running this memory and it works just fine for me. The speeds of the memory isn't an issue as the BIOS (eg the ReadyNAS firmware/OS) matches the clock speeds to the CPU. It think the Kingston RAM is capable of more than the CPU though, so it is downclocked to match the CPU? Not sure here.

Make sure you are running Radiator 4.2.21 (or later), as I am, because I have not tried the RAM with earlier versions.

EDIT: DO MAKE SURE YOU HAVE A BACKUP OF ALL THINGS ON THE READYNAS.

The stock memory module in my Ultra 2 Plus was a 1GB Asint SSY3128M8-EAE1D; I replaced it with a 2GB Crucial CT25664BC1067. Works great, lasts a long time, costs only $11 from Amazon:

http://www.amazon.com/dp/B001KB6Z2U/

If you can't get that particular module for some reason, here are the important things to look for. Your module must meet all of these specs:

• 2GB 204-pin DDR3 SODIMM. Larger than 2GB won't work.


• 1066MHz speed, often expressed as "PC3-8500". Faster modules (higher numbers) are fine; they'll adjust their timing parameters (lower CAS latency, etc.) to function exactly like a 1066MHz module.


• Non-ECC, unbuffered.


• 256x64 memory organization, single rank. Dual-rank modules (the 16-chip modules mentioned in earlier posts) apparently don't work.


• 1.5V operation. A 1.35V module is ok only if the manufacturer guarantees it to also run at 1.5V.

Make sure the NAS is unplugged before you open it up, and wear an anti-static wrist strap when you work on this or any other piece of electronic equipment, especially if you live someplace cold and dry. Amazon sells really nice wrist straps for like $6; that's a lot less than the cost of a new NAS.

Hi guys,

Did you found the 4gb RAM to put into our nice Ultra 2 ?

i'm really interested ! My system is always at full load RAM.

Thank you !

The RAM is supposed to be all used. The RAM is used for caching to improve performance.

and the performances are improve with additional RAM ?

I am currently looking to find locally 4GB DDR3 upgrade for my readyNAS Ultra 2 (RNDU2000 bought in the end of 2011 so with a 1.5GHz..:/).
Anyway i found one in a shop which was kind enough to let me try before buying. It was a Kingmax sodimm module 4GB 1333Mhz and with 8 chips total (4 per side). I was pretty sure it would work but unfortunately it didn't ! So I really thank the guy to have been kind enough to let me try in his shop before buying it!!

Is there anyone up there who find a working 4GB module ?