DELL R810 - No configurable memory detected

Question

Dear Community,

We are trying to install about 384GB of RAM on a DELL R810 machine, we followed this schema, that I got from a post on this forum of some time ago:

So, we placed the RAMs as the configuration number 25 on the schema.

Unfortunately the current setup does not work, and I am getting this error:

No configurable memory detected

System halted.

The RAMs are working because we managed to get all the 384GB but with the error "Memory Configuration Not Optimal"

We have verified that "FlexMem Bridge" is supported and we are using 2 CPU.

We would like to know what we are doing wrong.

Thank you for your help.

Best Regards.

DELL-Erman O · Answer

Hello,

Updating the BIOS could be a good start. You should also test each memory DIMM in a slot that you know works. Make sure the memory sticks are properly seated in the correct slots. Double-check that the memory DIMMs are compatible with the R910. And keep in mind, one or more of the memory sticks might be faulty. But also DIMM type may caused the issue it depends on processor. reference page and whole document for Memory
Guidance 11G poweredge-server-11gen-whitepaper-en.pdf (https://dell.to/47DELvg)

Feature Intel Xeon 5500-5600 Series Intel Xeon 7500-6500 Series
DIMM Type DDR3 (UDIMM or RDIMM) DDR3 (RDIMM only)

Hope that helps!

unibs-def · Answer

The BIOS is up to date, we are using the following dimm:

1) Sk hynix 16GB 2Rx4 PC3L - 10600R

2) Samsung 8GB 4Rx8 PC3L 8500R

Could it be that the dimm are not compatible. Is there a list of compatible dimm?

Thank you,

Best Regards.

unibs-def · Answer

Hi,

I also tried to remove all the dimms except for A1, A2, B1, and B2, but I got the same error.

So, with 2rx4 dimms such memory configuration cannot be achived?

Is there a way to make it work? I remember that I managed to make it work but with the error "The configuration is not optimal"

Can you suggest some way to solve the issue?

Thank you,

best regards

unibs-def · Answer

No one Can help? Is there a way to make the Sk hynix 16GB 2Rx4 PC3L - 10600R and Samsung 8GB 4Rx8 PC3L 8500R work together? Thank you, Best Regards.

jspinella · Answer

With my R910, I had to populate a minimum of TWO DIMMs per memory cartridge/riser. So the minimum number of DIMMs needed to get the thing to boot was: 2 DIMMs in every other cartridge (empty cartridges are more or less ignored), which means 2 DIMMs per CPU. The R910 has 4 CPUs, so I had to populate every other cartridge (each CPU gets 2 cartridges) with 2 DIMMs for a total of 8 DIMMs. The pair of DIMMs should go on the top two slots (Slots 1 and 2) of each populated cartridge.

hhdo · Answer

I encountered the same issue on the R910 server. I have four cartridges, each with six 16GB 10600 memory sticks. The server cannot boot and displays the message 'no configurable memory detected...' When I use the original 8GB 10600 memory sticks, it works fine. My BIOS version is 2.3.3. Could it be a BIOS issue?

PowerEdge Hardware General

DELL R810 - No configurable memory detected

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