Supermicro X10DRi-T4+ Ram Population

[bartonjd]

I have been building a server using the Supermicro X10DRi-T4+ mother board and Intel Xeon E5-2637v3 processor and have run into issues getting the system to accept ram in P1DIMM-D1. I get an uncorrectable memory component error which I am assuming has something to do with the ranking and channel configuration. I am new to the idea of ranking with memory and have tried to read up on it but haven't found a concrete answer as to why this is failing.As I understand it there are 4 channels and each can be populated with up to 3 DIMMS and the processor should be ok with that, but for some reason when I add a 4th channel (at this point just 1 Dimm per channel) I get the error. Right now I am using Crucial 16Gb DRx4 RDIMM ECC 288pin 2133Mhz DDR4. Please let me know if there is any other information that would be helpful.

P1DIMM-A1: 16GB
P1DIMM-B1: 16GB
P1DIMM-C1: 16GB
P1DIMM-D1: 16GB -- fails -- server only starts if I remove this one



I have been trying to follow the guidelines here: http://www.supermicro.com/support/resources/memory/X10_memory_config_guide.pdf

 

[brispuss]

The Crucial RDIMM's being used, are the four modules from the same kit? Or are they individual modules?

If from the same kit, is the kit on this list?

Try swapping the RDIMM's to different slots.

Clear/reset CMOS.

 

[bartonjd]

The Crucial RDIMM's being used, are the four modules from the same kit? Or are they individual modules?

If from the same kit, is the kit on this list?

Try swapping the RDIMM's to different slots.

Clear/reset CMOS.

The Crucial RDIMM's being used, are the four modules from the same kit? Or are they individual modules?

If from the same kit, is the kit on this list?

Try swapping the RDIMM's to different slots.

Clear/reset CMOS.

It wasn't a kit but I bought 14 RDIMM modules that were identical, these show as compatible on the crucial site you linked. I had a coworker in our electronics lab X-ray the motherboard and examine it under a microscope and he didn't see anything wrong with the soldering or traces. Could this be an issue with the type of ranking? When I moved the ram from Slot D1 into A2 here is what it showed in the BIOS:
A1: 0GB
A2:32GB
B1: 16GB
C1:16GB
I tried the CMOS reset and clear and neither did anything.

 

[brispuss]

The memory slots A1, B1, C1, and D1 are the correct slots to use when using four RDIMM's. Please only use these four slots when using four RDIMM's.

By swapping the RDIMM's to different slots, it was meant that the RDIMM's be swapped to either slot A1, or B1, or C1, or D1 with the other existing RDIMM.

For example, remove RDIMM from slot A1 and insert it into slot B1, the RDIMM that was in slot B1 insert that into slot A1.

Another example, remove RDIMM from slot D1 and insert it into slot B1, the RDIMM that was in slot B1 insert that into slot D1.

And so on .... Try various combinations of swapping the RDIMM's between slots A1, B1, C1, and D1. Don't try to use any other slots such as B2, D2 etc.

There is a potential inter-module compatibility issue here due to the RDIMM's being individual modules rather than coming from the same kit. The problem is likely to be due to variances in memory characteristics. Each memory module has unique characteristics, and in order for two or more modules to be compatible with each other requires that the memory module characteristics be identical. There is no guarantee of module compatibility even for modules with the same model/part number due to the variations in memory characteristics.

"Kits" that contain two or more modules have been tested to ensure/guarantee inter-module compatibility. Therefore it is preferred and recommended to use modules from the same kit to begin with to minimize any memory compatibility issues.

If still wanting to use individual modules (not from the same kit), then be prepared to spend time/money trying different modules (with same part number) until an inter-module compatible combination is eventually found.

What is/are the part number(s) of the memory modules please?