PC Processors

[CH72]

Hi

Some motherboard like the Asrock X670E steel Legend are announced to support 256 Gb of DDR5.

Does the 7950x/x3D are able to work with it ?

i 've found only 1 kind of 64 Gb of single bank (may be other are comming ) made by Kingston (server Premier 64Gb 5600MT/s DDR5 ECC CL46)

Does de CPU will be able to use 4*64 Gb of this kinf of ram ( didnt find anything answering by Yes or No )

Thx for help

 

[FunkZ · Accepted solution]

AMD lists max memory at 128GB for the 7950X3D or 7950X.

https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7950x3d.html

[FunkZ · Accepted solution]

AMD lists max memory at 128GB for the 7950X3D or 7950X.

https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7950x3d.html

[elstaci · Accepted solution]

According to Wikichip the maximum Memory it supports is 128GB: https://en.wikichip.org/wiki/amd/ryzen_9/7950x3d

Edit: According to AMD Support verifies Wikichip data on both the Ryzen 9 7950X & 7950x3D: https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7950x.html  &  https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7950x.html

[fcst]

Yes, the CPU does support up to 256GB. Don't believe otherwise claims. The problem is that each motherboard manufacturer can add or not ECC support, and 256GB kits non-ECC are virtually non-existant.

What you must do is check with the motherboard manufacturer for the tested modules, if you want to be sure of compatibility.

I am currently using 192GB non-ECC for RAM (4x48 from Corsair). But it HAD to be a 192 kit. I tried putting 4 modules from same brand and capacity and it was failing. Only when I used the specific, "approved" kit is when everything worked nicely.

I am sure there must be some cases when random pairs do work, but as an expensive investment you should probably stick to the "supported" modules or buy them from a place that accepts returns if you can't find such a list.

I have an Asus Crosshair Hero X670E, by the way, and rock-solid 192GB @5200 since I bought it in February 2024.

For my motherboard, in particular, there is a list here:

https://rog.asus.com/au/motherboards/rog-crosshair/rog-crosshair-x670e-hero-model/helpdesk_qvl_memor...