More than 128GB on Threadripper?

[chicagonyc]

I'm interested in building a Threadripper system with a very large amount of memory. The plan is to purchase 4 32gb DIMMs in the beginning for 128GB total, and then upgrade to 4 more 32gb DIMMs for 256GB total later on. I am indifferent to ECC, but leaning towards wanting it.

I have read on this forum that TR is capable of this -- but are the X399 boards that are coming out capable too?

AMD Ryzen Threadripper Motherboards Comparison | VideoCardz.com

The specifications on all the X399 boards explicitly mention a 128Gb limit as well for all types of memory! For example, the ASROCK Taichi specifically mentions a 128GB limit:

ASRock > X399 Taichi

Any hope of getting a Threadripper system with more than 128GB memory without going to Epyc?

 

[i386]

Threadripper is limited by available ecc udimms (currently 16gb?) accoring to an amd guys post on reddit. So if 32gb or more is available it should work with threadripper.

 

[Patriot]

limited to unbuffered memory as far as I can tell. Though it does support ECC.

 

[browned]

You could wait for EPYC single socket server or workstation boards and get all the RAM you want.

Someone mentioned to me that a 7401P 24 core/48 thread EPYC processor costs $76 more than the Threadripper 1950x so 8 more cores + 16 threads for very little. Just a balance of clock speed 2Ghz vs 3.5, workstation/server motherboard price, but you get more memory channels, more cache, and more PCIe lanes if they are required.