Maximus Z690 and Alder Lake: Modern CPU’s require Modern Overclocking Solutions

[Silent Scone@ROG]

Any recommendations for successful XMP on the new G.Skill 6600 (F5-6600J3440G16GX2-TZ5RK)? I've tried repeatedly with various voltage settings, ala what was profiled in the OP, namely vdd, vddq, VCCSA, MC VDD, TX VDDQ to get it to run reliably on XMP but no go. My G.Skill 5600 CL36 runs error free and rock solid on my Extreme with these settings, 1.25v with VCCSA on Auto.

Hello,

The Extreme is only validated up to 6400MT, you may have to accept that 6600 is unobtainable. Tune for 6000-6400 where possible.

[jking63]

Hello,

The Extreme is only validated up to 6400MT, you may have to accept that 6600 is unobtainable. Tune for 6000-6400 where possible.

Thank you Silent Scone, I find it a bit odd that G.Skill has it on their QVL, however I broke from my usual tradition in checking with board manufacturer first on this. In your opinion, will this be rectified with further BIOS maturation? I built my rig mainly for gaming and chose the Extreme in part for it's connector layout and aesthetics as it pertained to my case wiring and very well may have gone for an Apex otherwise but I'm very pleased with the Extreme nonetheless. At this point, would you recommend the 6400 for it's XMP compatibility, though for gaming I'm of the opinion it won't offer up that much of a gain overall, perhaps I should consider clocking my 5600 to 6k and wait things out, again thank you for your response.

I'm running my 5600 1.25v on all of the following except VCCSA (@ Auto)
vdd, vddq, VCCSA, MC VDD, TX VDDQ

[ykeyre]

Thank you Silent Scone, I find it a bit odd that G.Skill has it on their QVL, however I broke from my usual tradition in checking with board manufacturer first on this. In your opinion, will this be rectified with further BIOS maturation? I built my rig mainly for gaming and chose the Extreme in part for it's connector layout and aesthetics as it pertained to my case wiring and very well may have gone for an Apex otherwise but I'm very pleased with the Extreme nonetheless. At this point, would you recommend the 6400 for it's XMP compatibility, though for gaming I'm of the opinion it won't offer up that much of a gain overall, perhaps I should consider clocking my 5600 to 6k and wait things out, again thank you for your response.

I'm running my 5600 1.25v on all of the following except VCCSA (@ Auto)
vdd, vddq, VCCSA, MC VDD, TX VDDQ

Asus will not admit this but Z690 motherboards have way too much discrepancy with regards to memory stability and performance ceiling. I have been through 4 different Z690 Apex, 3 Z690-A D4 WIFI and 2 Z690 Hero motherboards. Using the same CPU and memory config, they were all different in terms of ram stability. 1 of them would not even boot to windows after trying 6 separate kits of RAM, all of which were listed on QVL and using default speeds. Z690 is by far the worst generation of motherboard Asus has ever made.

[jking63]

Asus will not admit this but Z690 motherboards have way too much discrepancy with regards to memory stability and performance ceiling. I have been through 4 different Z690 Apex, 3 Z690-A D4 WIFI and 2 Z690 Hero motherboards. Using the same CPU and memory config, they were all different in terms of ram stability. 1 of them would not even boot to windows after trying 6 separate kits of RAM, all of which were listed on QVL and using default speeds. Z690 is by far the worst generation of motherboard Asus has ever made.

I cannot disagree with this, but will say that memory manufacturers are at present outpacing BIOS releases where mobo makers are still dealing with a great many issues not least of which is memory stability, I just don't see any support for much higher speed ram for months yet sadly. I'm very fortunate with my Extreme, yes but I built it mainly for gaming with light overclocking atm via Asus AI. The G.Skill 5600 I've had running since last Dec is performing very well, stable in every benchmark and should Asus feel the need to give us even more for our expensive boards, I'd love to try some higher speed stuff.

[Silent Scone@ROG]

I cannot disagree with this, but will say that memory manufacturers are at present outpacing BIOS releases where mobo makers are still dealing with a great many issues not least of which is memory stability, I just don't see any support for much higher speed ram for months yet sadly. I'm very fortunate with my Extreme, yes but I built it mainly for gaming with light overclocking atm via Asus AI. The G.Skill 5600 I've had running since last Dec is performing very well, stable in every benchmark and should Asus feel the need to give us even more for our expensive boards, I'd love to try some higher speed stuff.

Unfortunately, simply because a kit is present on the QVL doesn't ensure stability, especially when aiming for the maximum validated ratio as some concessions often need to be made. This is why the boards are equipped with various Tweak Modes and the ever present ability to adjust memory subsets.

These things can take time and a methodical approach. Simply chopping out parts and hoping for some kind of circuit eureka isn't always going to help depending on ones expectations or experience.



Here's 6800 working last year, this took me several hours to dial in the timings and voltages.