02-07-2022 02:35 PM
02-07-2022 10:57 PM
I personally have never had issues with XMP profiles being 100% stable using asus products for like a decade. I completely understand what you are saying though. I was just surprised that there is really no samsung dims listed on the QVL for apex but it's all there for the hero board.
I appreciate that link, I will read though it and probably work on getting my sticks to work.
I guess it just seems like after some research that the SK hynix stuff has been more stable for people so I was tempted to get some different sk hynix stuff to make life easier.
Thanks again, I will read though it.
PS. I am still interested to hear why the apex QVL is fairly bare and way lower than a board like the APEX. I am guessing it's just because the hero is a much more mainstream board that probably sells FAR more than the apex and people that get the apex are expected to have to tweak their own stuff. But again, I have never really had issues in the past.
02-08-2022 05:18 PM
Silent Scone@ROG wrote:
Generally speaking 2 DIMM boards are less popular, so memory vendors are less inclined to validate as many kits as possible. That said, as many are now aware the memory topology of the Apex makes overclocking considerably easier.
This does not mean itÃ¢â‚¬â„¢s exempt from certain combinations of CPU samples and kits not jiving well with auto rules, or weak memory controllers. XMP hasn't ever guaranteed stability and it certainly doesn't on Z690. Majority of CPU should be able to do 6000 2T, however, adjustments may need to be made. Having never personally experienced an issue before doesnÃ¢â‚¬â„¢t mean one doesnÃ¢â‚¬â„¢t exist, right? This is no different, and comes down to signal alignment. For most of us, itÃ¢â‚¬â„¢s better we accept these things for what they are and tune accordingly.
Some of these voltages are sensitive to change. Each CPU is different, so guides will only get you so far. Sometimes all one can say is it works on my machine if I use X&Y. This isnÃ¢â‚¬â„¢t anything new, either. These things have always been there at varying degrees depending on the platform and how ambitious one is when aiming for frequency. On Z690, the window for stability with some of these signal voltages is quite narrow.
*Bump VDD and VDDQ to 1.35v
MCVDD 1.25 (Extreme Tweaker>Advanced Memory Settings)
02-09-2022 12:19 AM
So I can find VDD and VDDQ easy enough, I am not seeing the other two. What units are the VCCSA in, the "c"?
Am I missing something? Is MCVDD the memory controller voltage?
02-09-2022 12:21 AM
Still was hoping to get an answer on this.Ã‚*
02-09-2022 01:31 PM
Silent Scone@ROG wrote:
MCVDD is the Memory Controller Voltage.
VCCSA is CPU System Agent Voltage.
02-08-2022 05:23 AM
02-08-2022 09:13 AM
02-08-2022 10:07 AM
XMP I and XMP II do not correspond to XMP version, but to XMP mode :XMP I mode = ASUS optimized XMP profil
XMP II mode = Memory manufacturer original XMP profil
XMP version depend only on the generation of memory used :
02-09-2022 09:07 AM
That does not explain why the XMP 3 3rd profile along with the 2 custom/renamable profiles are missing in the bios. Since the 3rd XMP 3 profile and the 2 custom profiles are missing, it does not seem like the Bios recogizes it yet, since they are already encoded on the memery dimms, which is why I was thinking the Asus bios is fully optimized for DDR5 XMP 3.0 just yet. My thoughts anyway.
02-09-2022 01:39 PM
ASUS BIOS/UEFI has nothing to do with this, the Intel slide that I quoted to you indicates what XMP 3.0 allows, it is then up to the memory manufacturer to do what is usually done with XMP 1.0/2.0 historically (1 or 2 static profiles and nothing else), or to use the possibilities offered by XMP 3.0 (and if so, these will be visible in your ASUS BIOS/UEFI).