[SOLVED] Help Please, Can SDRAM be used in Server Board asking for UDIMM?

[Beavcowski]

Hi Guys, I'm hoping to get a straight answer as the place I bought the ram and mobo off is doing my head in.

I purchased an Intel Server Board M10JNP2SB as per link below. It is specifiying UDIMM ram
https://ark.intel.com/content/www/us/en/ark/products/197377/intel-server-board-m10jnp2sb.html

I then perhaps foolishly purchased 4 x 16gb of the following SDRAM Kingston sticks
https://www.kingston.com/dataSheets/KSM26RD8_16MEI.pdf

Will the Kingston ram work in the server board or should I just swallow my pride and return it for Unbuffered UDIMM?

I have read conflicting things in my research. All straight answers will be greatly appreciated.

 

[SamirD]

So Intel says it won't work. But xeons typically support rdimms.

Since you already have them, I would try them. There's a chance they will work and you will be the one discovering that rdimms work perfectly fine.

I accidentally discovered that LRDIMMs work on the HP z420. Not only that, but 32GB modules are support so instead of the 32GB that HP says is supported, a whopping 256GB is supported via LRDIMMs that I memtested myself. I couldn't believe my eyes, but there it was.

 

[Beavcowski]

Hi Samir,

Thanks heaps for replying.

So Intel says it won't work. But xeons typically support rdimms.

Since you already have them, I would try them. There's a chance they will work and you will be the one discovering that rdimms work perfectly fine.

If I do try them and they don't work it will cost me a 15% re-stocking fee which would be over $130 plus I don't have the time to have the server down to get wait for ram that will work. I am trying to work out if they will most definitely be compatible. I'm having trouble working out why thy would only support unbuffered ram on a server and not registered for better reliability in a critical environment.

 

[SamirD]

Yeah, that's a tough spot. I searched to try to find anyone with any experience with the board and rdimms and there's nothing out there. Without someone's firsthand experience there would be no way to know. I completely agree with you about why it wouldn't work in theory. The only idea I can think of is that board is designed more like a desktop board so they only modified the bios to accept xeons and left it at that.

Bottom line is that if that's the risk, I would just return it and get the ones you need. Someone else some day will find out the truth.