Z890 RAM errors with XMP on

[Silveredge]

RAM: GSKILL 9600 Trident CK5 (F5-9600C4658H24GX2-TZ5CRK)
Motherboard: ASUS Z890 APEX
BIOS: 1501

I have been dealing with GSKILL and ASUS support for a month. I thought I would post on these forums to make sure there isn’t an issue with testing new CUDIMM RAM.

When running the RAM in XMP it has tons of errors (180+). The odd thing about these errors is that they are in the exact same digit, which seems weird. With XMP off there are no errors. It runs at 6400 with XMP off. I RMA’d the RAM and the replacement ram is having exactly the same errors in exactly the same spot. I tested other RAM which doesn’t have errors with XMP on or off, but it only goes up to 6000 and is not CUDIMM ram.

This seems like either a BIOS issue that needs to be fixed by ASUS, a Motherboard issue (memory controller?), or a Memtest86 issue with CUDIMM Ram at high speeds? Any input would be greatly appreciated!

[David (PassMark)]

This seems like either a BIOS issue that needs to be fixed by ASUS, a Motherboard issue (memory controller?), or a Memtest86 issue with CUDIMM Ram at high speeds?

There is another possibility.
The problem is in the marketing department of these companies.
Desperate for sales, increased margins, and the need to have product differentiation in a market of with standardized commodity products, they make claims that they can't deliver on.
(or can only deliver on in a very narrow set of circumstances).

In the log you are seeing single bit flips. This is the most common type of memory error.

9598MT/sec is insanely fast, compared to memory speeds over the last few years. CUDIMMs are also very new. You are on the bleeding edge.

[Silveredge]

Thank you for the response David! I have also found two threads on the Z890 motherboards thread on the ASUS forums with people having the same issue with high speed (8000+) CUDIMM Ram. I’ll see what ASUS and GSKILL come back with. Not being able to hit the advertised rates without errors is definitely frustrating. I can definitely see your point with the marketing.