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Old 01-09-2018, 11:44 AM
c-attack c-attack is offline
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Originally Posted by dakotha View Post

I have the Rampage VI Apex too, but only the 7740X I can play with. If the sticks don't work in dual channel mobo on that mobo, I will definitely RMA this kit again...the 7740X on the Apex should support even DDR4-4400 (or 4500 for that matter) kits.
Don't confuse motherboard maker "supports" with guaranteed to work. When pressed, they concede it is all overclocking and there is no guarantee or warranty for failing to reach those marks. Unfortunately, memory training is a lot of work and it is most likely required as you approach 4000 MHz and above. You can keep swapping to different brands and sets hoping to find XMP sub-timings that are a perfect match for your settings, but the odds are not with you. It probably will require a lot of fiddling.
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