kylobm420 Posted July 30, 2020 Share Posted July 30, 2020 (edited) Hi All, So I am having issues with my Vengeance RGB Pro 2x8gb 4000Mhz not being able to post when enabling the XMP profile. I can enable the XMP profile but then I need to underclock the frequency of the ram to 3533 mhz. Anything above 3533 and the system does not post. I suspect it's due to timings or voltages or something, but I am fairly new to this and I don't want to do the wrong things. So does anyone have any idea on how to get the rated speed on my system, or should I rather look at returning these and getting another kit of ram? PS: I have tried using DRAM Calculator, but when I choose any frequency above 3600, it says not supported. Edited July 30, 2020 by Technobeard removed system specs; already in profile Link to comment Share on other sites More sharing options...
A Computer Guy Posted July 30, 2020 Share Posted July 30, 2020 Hi All, So I am having issues with my Vengeance RGB Pro 2x8gb 4000Mhz not being able to post when enabling the XMP profile. I can enable the XMP profile but then I need to underclock the frequency of the ram to 3533 mhz. Anything above 3533 and the system does not post. I suspect it's due to timings or voltages or something, but I am fairly new to this and I don't want to do the wrong things. So does anyone have any idea on how to get the rated speed on my system, or should I rather look at returning these and getting another kit of ram? PS: I have tried using DRAM Calculator, but when I choose any frequency above 3600, it says not supported. Getting your ram to run at DDR4-4000 probably is't worth it as it would force your Ryzen CPU infinity fabric to drop into 2:1 mode. https://www.anandtech.com/show/14525/amd-zen-2-microarchitecture-analysis-ryzen-3000-and-epyc-rome/11 This article may help you with your overclocking https://www.techpowerup.com/review/amd-ryzen-memory-tweaking-overclocking-guide/ Link to comment Share on other sites More sharing options...
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