Ram Upgrade TS 855 eu

German
1

Hi,

I can’t upgrade the NAS with RAM.

First, I used 2 x 32 GB modules from PHS that were sold as compatible—the NAS didn’t start. So I sent them back.

Now I have 2x Kingston KSM32ED8/32HD (Arbeitsspeicher für QNAP - NAS Servers TS-855eU - Kingston Technology)

They should also be compatible.

By the way, when the NAS was delivered, it also had an 8GB Kingston installed.

If the original 8GB RAM module is in slot 1 and the 32GB module is in slot 2, the NAS starts and the 32GB module is also recognized under Quts hero.

If I remove the 8GB and put the 32GB in slot 1, the NAS does not start.

Now I’m wondering, am I doing something fundamentally wrong?

Unplug, change RAM, plug in, and start.

Regards, Riccardo

2

Hello,

The same problem exists in the German forum.

A ticket was created there and currently the NAS is being replaced.

3

Hi, thanks for the info. Unfortunately, I can no longer register there. But it seems to be the same problem.

4

Hi, I’m sending the Kingston back as well—according to Qnap, it’s not compatible either. What bothers me the most is that there’s also a Kingston installed at delivery that isn’t on the compatibility list. I’ve now bought Qnap memory, non-ECC… let’s see if that works.

5

So, just a quick update: I have now tested RAM from Compuram that is supposedly running on numerous TS-855eu devices. That doesn’t work either. I suspect that there are different hardware specs for the TS-855eu. If anyone has an idea or can provide me with original QNAP RAM to test, I would really appreciate it. Regards, Riccardo Koch

6

According to a storage provider, newer devices might have a different firmware installed.

“I rather suspect that third-party hardware is being locked out via a firmware update, for example by Qnap (white list).

For example, programming into the SPD of the memory.”

7

Currently, I only see 3 possibilities

  1. Reflashing the SPD storage of the RAM modules—this is not an option for me due to lack of “know-how”
  2. Getting an older BIOS for the Qnap where third-party RAM still works (for this, I need a BIOS version that allows it)
  3. Waiting until Qnap RAM sticks are available for purchase again :-1:
8

Possibly also this

came from Qnap Support

“In response to your previous feedback that 8GB was installed in Slot 1 and 32GB in Slot 2: This corresponds to an asymmetric dual-channel configuration.

  1. Parameter Adoption: The QNAP system first reads the default parameters of the original 8GB module in the main slot (Slot 1) and enforces these parameters to control the 32GB module in Slot 2.

  2. Flex Mode: In this case, the NAS is expected to operate in the so-called “Flex Mode”:

    • Dual-channel area: The 8GB from Slot 1 together with the first 8GB from Slot 2 form a 16GB dual-channel area. This is the area with the fastest read and write speeds.

    • Single-channel area: The remaining 24GB in Slot 2 operate only in single-channel mode. Note: This is not an officially recommended procedure.

Has anyone had experience with this? Especially with VMs?

9

All my small NAS devices run without any problems this way. Why should there be issues with VMs? My VMs (Win, Mint, librenms, …) run without any problems.

TS-251D 12 GB (4+8)

TS-364 20 GB (4+16)

TS-264 40 GB (8+32)

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