More of an FYI I guess but the DELTA RGB DDR5 Desktop Memory 6400, with two sticks works fine with the latest official bios on 690 Extreme
Been playing halo for a couple hours, normal stuff, works fine but wont post with 4 sticks
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Seems to be a common issue, not related to the brand. There are many reports here, for various DDR5 brands, about not posting with 4 modules or instability.
I was nervous about that, because I initially tried two dominator 5200 16x2 sticks and the system wouldn't post sometimes. I'm not using a mix of two g.skill kits. One being 36-36-36-76 and another 40-40-40-76, so 4 DIMMs, 64gb, and the system boots like a champ. Older bios as well.
Im at 6400 though, it posts fine with all group at 5600 😛 but I didn't sell a kidney for the kits to run it at lower speeds 🙂