tpdean11 Posted November 12, 2017 Share Posted November 12, 2017 I purchased a Corsair Vengeance LPX kit (CMX16GX4M2B4266C19R) from Newegg last week for a new system build. This kit is paired with an Asus ROG STRIX Z370-G mobo (BIOS 0419). The XMP profile has it listed as DDR4 4266MHz, 19-26-26-46 @ 1.40V. I have found that my system fails to boot with any DDR4 frequency options selected that are above 3600MHz, 19-26-26-46 @ 1.40V. Is this a known issue with this kit and mobo combination? Any other Asus ROG STRIX owners out there having similar issues with Vengeance sticks? Link to comment Share on other sites More sharing options...
emissary42 Posted November 13, 2017 Share Posted November 13, 2017 First off: The memory is probably not the issue here. The Asus Strix Z370-G Gaming is only rated for up to DDR4-4000 by ASUS and you might already have to make manual adjustments to reach that. If you have a stable setting for DDR4-3600, check performance and make some screenshots that include the sub-timings (via MemTweakIt or ASRock Timing Configurator). Then step by step try for DDR4-3733/3866/4000 with slight adjustments in tertiary timings and VCCSA/VCCIO until you can reliably POST and pass stability tests with those settings. Your kit probably doesn't even need a Vdimm of 1.40V for any of that, unless you also tighten the primary timings. Link to comment Share on other sites More sharing options...
tpdean11 Posted November 13, 2017 Author Share Posted November 13, 2017 Doh! Thank you for pointing out that the Z3730-G's specs do not support anything higher than DDR4-4000. I was getting this board confused with the Z3730-I, which supports up to DDR4-4333. This certainly explains a few things! I was assuming all the STRIX Z3730 boards supported DDR4-4333, but clearly that's not the case. My bad! Link to comment Share on other sites More sharing options...
emissary42 Posted November 14, 2017 Share Posted November 14, 2017 The two memory slot models can support a higher max memory frequency by design, that is why even the ATX ASUS ROG Maximux X Apex only has two memory slots. Link to comment Share on other sites More sharing options...
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