tRC present in XMP, missing in BIOS, grayed out in HWinfo64

toyo

Distinguished
Sep 24, 2011
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Hello,

Can anyone explain why is this the case? RAM model can be seen in the screenshot, motherboard MSI Gaming Plus Z370. Is it normal for tRC to miss on DDR4? Or on some motherboards? You can see tRC is present in both JEDEC and XMP, yet not possible to be set anywhere. Sounds suspect for what's a primary timing that is written in the XMP?

Thanks.

6E4LOrX.png