z890 Steel Legend RAM issue

Hello everyone,

Got at z890 Steel Legend that used to work well with a compatible set of QVL-approved RAM for almost a whole year without problems. Now it can't work without running at JEDEC 4800, everything else would cause freezes and random BSOD at all time.

Thanks for your help.

Edited by Xaltar - 10 hours 9 minutes ago at 12:27pm

Xaltar wrote: Have you made any changes to the system that could have caused the issue? BIOS updates, upgrades, added more RAM etc? Do you remember when the issue started?

Zero changes before the first problem appeared actually. No hardware and no software.
My system just started freezing after coming back from sleep with an orange DRAM LED, every single time. Then I ended up putting the BIOS defaults, reflashing the same 3.24 BIOS, and finally using BIOS flashback.
Flashback solved the sleep issues, but since the BIOS defaults, it's non stop BSOD and freezes everywhere in XMP or 200S Boost with or without XMP, even with BIOS flashback + multiple reboots between those changes to make sure they are isolated. It has been a whole month now.