FYI
Just thought Id share some "quick n nasty" results BIOS version 0811.
12900 All Stock, Dominator DDR5 5600 / Cl36 (at stock 4800 Cl 40).
- Solid Stable with anything I throw at in W11
- Memtest 86 "Pass"
Load XMP I Profile:
- 12900 K All Stock
- XMP I (no changes to what is set by Profile)
Results:
- Solid with everything I throw at it in W11
- Exception with IXTU, whereby I get an "stability error" upon launching, but after clicking "ok" starts up fine and passes benchmarks and Memory Test.
- Fails Memtest (4 errors).I followed the Shamino OC'ing Guide (sticky within this Thread), in particular the section on Memory and applied the following:
- DRAM VDD changed from 1.25v to 1.275v
- DRAM VDDQ changed from 1.25v to 1.275v
- Memory Controller changed from "auto" to 1.3v
- CPU System Agent changed from "auto" to 1.25v
- IVR Transmitter VDDQ changed to 1.275v
Results with changes above applied:
- Everything in W11 continues to be solid
- IXTU no more "stability error message" when initially opening the Program
- Memtest "Passed"In the past with several different platforms I have always found that after loading XMP Profile there is generally some tweaking to do .
In some cases a System wont even post, which generally means setting a little higher DRAM voltages, or in this case with DDR5 (for greater stability) setting a few different voltages as outlines in Shaminos Guide.
Not sure if I ever would have noticed the initially instability unless I ran Memtest, perhaps it would have reared its head at some point.
Now that it appears I have stability with XMP I, I have saved it in Profiles and re-load stock Memory settings prior to jumping into some CPU OC'ing.
I still have to move this System from my bench to Case w custom loop (install Velocity 2 and Vector Blocks).
Cheers