ROG MAXIMUS Z890 HERO XMP Not Working

[Bannon]

I just built a new system with the following specs and whenever I use any of the three XMP profiles, the boot sequence stops with error code 62. The system boots when I use the AUTO setting but the memory is reported to run at only 5200 speed. All other BIOS settings are default with the exception of the Realtek NIC and the full screen boot display both set to disabled. I am running the latest (as of this moment) BIOS 0806.

Specs

• ROG MAXIMUS Z890 HERO motherboard
• Intel Core 7 Ultra 265K
• CORSAIR Dominator Titanium RGB DDR5 RAM 64GB (2x32GB) DDR5 6600MHz CL32 Intel XMP  (CMP64GX5M2X6600C32)
• 2x Samsung 990 Pro nvme drives
• ROG Strix 7070Ti OC Super 16GB

Any suggestions will be welcome. Thanks for your help.

[Bannon · Accepted solution]

I found the solution. I had to put my DIMMS in slots 2 and 4 and it booted successfully at 6600 with XMP II.

[Jiaszzz_ROG]

Hello @Bannon 

I'm glad you were able to pinpoint the problem.
You may also find the following discussion thread helpful: "Memory Kits - Overclocking and What You May Not Know."

Thank you.