32GB DDR4-2666 RDIMMs $85 ea

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anomaly

Active Member
Jan 8, 2018
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Nevermind, anyone knows how the compat for Xeon Silver/Scalable v2 is? 3DS should be supported. This is one of those deals that looks somewhat too good to be true. Has anyone ran memtest on these for a day or two? (with the full battery of tests)
 

frogtech

Well-Known Member
Jan 4, 2016
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What are the odds of these still being available in the future? I'd hate to buy 4 now for a build and then not be able to find them later on to fill out the remaining dimms on a board.
 
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Evan

Well-Known Member
Jan 6, 2016
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What are the odds of these still being available in the future? I'd hate to buy 4 now for a build and then not be able to find them later on to fill out the remaining dimms on a board.
Given the odd configuration of these rather than standard 2Rx4 then I think you can assume at the very least it won’t be something that is super easy to find.
 

Jon

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Feb 28, 2016
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Well as of now no luck with the sticks I got.

intel XeonD 15xx

  1. X10SDV-TLN4F Bios 2.0C = no go
  2. X10SDV-4C-7TP4F Bios 2.0C = no go
  3. GIGABYTE MB10 Datto Motherbaord Xeon D-1521 = no go
AMD Epyc Rome
  1. H11SSL-i Rev2 Bios R2.0a with 7302P = no go
  2. ASRock Rack EPYCD8-2T Bios 2.3 with 7402P = no go
 

int0x2e

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Dec 9, 2015
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have we confirmed if this will work with Xeon E5-26xx V3?
Yes. I've got A SM X10DRI board with a couple of e5-2678 v3's and it runs fine.
Are I understand, the main requirement is that the board has been flashed to a bios rev that supports E5 v4. I believe that actually means it has the latest microcode updates which added support for driving these devices to the v3's, but not every board will have that option...
 

adminmat

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Sep 1, 2019
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Yes. I've got A SM X10DRI board with a couple of e5-2678 v3's and it runs fine.
Are I understand, the main requirement is that the board has been flashed to a bios rev that supports E5 v4. I believe that actually means it has the latest microcode updates which added support for driving these devices to the v3's, but not every board will have that option...
Thanks, good to know. $75 for 32GB seems like a good deal. Do you know what they mean by "It is a TSV RDIMM memory. It cannot be mixed with regular RDIMMs!"

I'll be replacing four 8GB sticks and not mixing this with anything but could this memory be an issue when adding more later on due to lack of availability?
 

int0x2e

Member
Dec 9, 2015
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Thanks, good to know. $75 for 32GB seems like a good deal. Do you know what they mean by "It is a TSV RDIMM memory. It cannot be mixed with regular RDIMMs!"

I'll be replacing four 8GB sticks and not mixing this with anything but could this memory be an issue when adding more later on due to lack of availability?
Page 6 of this Lenovo guide is pretty clear that Intel forces you to pick a single dimm type and stick with it (i.e.: absolutely no mixing per machine).
If you're building a new box, I think it's a compromise that makes sense.
 

cookiesowns

Active Member
Feb 12, 2016
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I’ve had really high failure rates so far on the 2933 32GB sticks.
No RMA other than buying new ones and “returning” the old ones.
1 stick started throwing errors within a few hours. 2nd one failed over putting the units in the DC with cooler air.

who knows if more will fail after actual stress.

the 2666 ones have been running reliably so far with 8170’s.
 

Yangff

New Member
Dec 23, 2019
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Yes. I've got A SM X10DRI board with a couple of e5-2678 v3's and it runs fine.
Are I understand, the main requirement is that the board has been flashed to a bios rev that supports E5 v4. I believe that actually means it has the latest microcode updates which added support for driving these devices to the v3's, but not every board will have that option...
It has nothing to do with microcode. I tried it with asrock x99m killer 3.1, e5-2683v3 and I manually modified the BIOS to get latest microcode. It won't post. post code 19 60 66 and restart.

66 seems means it already passed PEI which indicates that memory controller init has passed.... which may also indicate that TSV memory need special treatment (or newer) MRC to get proper arguments for memory controller.
 
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wildpig1234

Well-Known Member
Aug 22, 2016
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So i have asus z10ped16, asrock x99 taichi, SM x10SRA MB with 2686 and 2696 v3 cpu. These MB will run the ES v4 cpu also. so can these MB use any of the above? how about the 8x32 for 600 something $?
 

Yangff

New Member
Dec 23, 2019
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Try to replace UncoreInitPeim but it seems that supermicro's UncoreInitPeim is not compatible asrock. Post code ended with 03
 

wildpig1234

Well-Known Member
Aug 22, 2016
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hmm maybe i should just forget about this and try to get some regular rdimm that are compatible with the 16gb rdimm i currently have