ASRock Forums : Z170 OC Formula XMP Switch Not Working https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 29 May 2026 05:45:44 +0000 Tue, 24 Nov 2015 06:17:09 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=1321 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Z170 OC Formula XMP Switch Not Working : Whenever I flip the XMP switch...]]> https://forum.asrock.com/forum_posts.asp?TID=1321&PID=6082&title=z170-oc-formula-xmp-switch-not-working#6082 Author: SonOfMore
Subject: 1321
Posted: 24 Nov 2015 at 6:17am

Whenever I flip the XMP switch to the "on" position on my motherboard, the UEFI/BIOS/Windows won't load. The screen will remain black, despite the computer powering on.

For troubleshooting I've:

Re-seated the memory in the appropriate slots DDR4_A2 and DDR4_B2 as instrurcted by the user's manual. I've turned the XMP switch off and booted to UEFI and confirmed that the BIOS is showing that there are 2 16GB sticks appearing (which there are). I've upgraded to UEFI version 1.90 which is the latest available.

Is there any way to get XMP working with this setup, or can this memory only be configured manually inside of OC Tweaker? The RAM I purchased was on the approved memory list for this motherboard and has been reviewed well by several sites, and as long as I keep XMP turned off, it boots without a problem.

Also, is the XMP settings something I should configure first in the UEFI settings, Save and Quit, then power off the machine, then flip the XMP switch to the "on" position? Thank you! 
]]> Tue, 24 Nov 2015 06:17:09 +0000 https://forum.asrock.com/forum_posts.asp?TID=1321&PID=6082&title=z170-oc-formula-xmp-switch-not-working#6082