FS: 2x 64GB DDR4 ECC 2933 Memory

[rskoss]

I bought these by mistake when I was building my server. The mb couldn't handle 2933.

$500 for the two sticks. Shipping included. US only.

 

[tinfoil3d]

What's the exact model? PC4-....what? Chip manufacturer?
Your mb would actually run those on max available clocks so no panic there. I've been using 3200 on 2666-only aware CPU for months. Are you even sure your mb won't run those on 2933?

 

[rskoss]

T

What's the exact model? PC4-....what? Chip manufacturer?
Your mb would actually run those on max available clocks so no panic there. I've been using 3200 on 2666-only aware CPU for months. Are you even sure your mb won't run those on 2933?

The invoice says SuperMicro but there is a Samsung sticker on the stick. PC4 23400.

The X11SPH mb won't run it. Positive. Won't boot.

 

[tinfoil3d]

The invoice says SuperMicro but there is a Samsung sticker on the stick. PC4 23400.

The X11SPH mb won't run it. Positive. Won't boot.

That's weird. What's the full samsung model number(probably looks like M386xxxxx-CVFxx)?

 

[rskoss]

That's weird. What's the full samsung model number(probably looks like M386xxxxx-CVFxx)?

Here's the link on Newegg: Supermicro memory

 

[Samir]

Here's the link on Newegg: Supermicro memory

Seems like this is 'compatible' memory that isn't compatible versus real Supermicro modules.

 

[Weapon]

Is there such a thing as “real” Supermicro modules? I thought it was just a sticker on validated part numbers.

 

[tinfoil3d]

Here's the link on Newegg: Supermicro memory

Yeah, something doesn't click here, it's a regular 2933 RDIMM, and samsung pn is probably M393A8G40MB2-CVF on yours (see M393A8G40MB2-CVF | RDIMM | Samsung Module | Semiconductor ) which by specs of your MB just has to work. Hey, there's even a supermicro sticker to reassure you! Something is not right here, this mb should absolutely support this RAM. You tried clearing CMOS did you?
Tried installing just a single module, testing both of them?

 

[tinfoil3d]

Or, what if you power motherboard completely with no ram, it has to make some indications that it does work, and why it won't POST

 

[rskoss]

Or, what if you power motherboard completely with no ram, it has to make some indications that it does work, and why it won't POST

You can read about my problems with the memory not detected beep code from the mb on page 2 of this thread: My Mega Thread

I'm gathering parts now for another server build using the same mb (except the new one will use SFP+) so providing nobody buys these sticks, I can try them again in the new build.

 

[tinfoil3d]

Oh i see. Surprised me because I was running 3200 LRDIMM on an 2666-only-aware EPYC for half a year, just swapped CPU yesterday for newer ROME EPYC and it now works on full speed. Didn't touch the memory.
So what, intel scalable doesn't scale down well?.. I thought like with all "more modern" stuff it's just backwards-compatible(downclocked, whatever)...