https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 15 May 2026 22:56:44 +0000 Tue, 23 May 2023 12:34:23 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=25730 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104929&title=extreme-4-z390-memory-problem#104929 Author: siberian
Subject: 25730
Posted: 23 May 2023 at 12:34pm

Try to turn off XMP/OC settings and go to the bottom of RAM OC settings page to turn Fast MRC off and AsRock optimizations on. Save & reboot. If still no luck ??turn the XMP profile on and reboot. Clean your MoBo RAM slots ??high frequency acts like a magnet for any kind of dust. Clean DDR contacts with isopropyl. Repeat XMP off/on reboot steps. Leave only a new ones RAMs plugged into A2 and B2 slots to check how they?™re.]]> Tue, 23 May 2023 12:34:23 +0000 https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104929&title=extreme-4-z390-memory-problem#104929 https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104367&title=extreme-4-z390-memory-problem#104367 Author: RLGL
Subject: 25730
Posted: 05 Apr 2023 at 9:47pm

You must have a matched set from the start. One cannot add ram manufactured at a later date. In most cases it will be different. The individual chip can have different characteristics .]]> Wed, 05 Apr 2023 21:47:11 +0000 https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104367&title=extreme-4-z390-memory-problem#104367 https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104366&title=extreme-4-z390-memory-problem#104366 Author: maciejos78
Subject: 25730
Posted: 05 Apr 2023 at 8:36pm

Hello,

Few days ago I bought pair of DDR4 RAM sticks for my Extreme 4 Z390 MoBo. So far I was using 2x16GB Predator (Kingstone) 2666MHz CL13. No issue with them, therefore I looked for exact the same product and I found it. Unfortunately I cannot use them, and here is how it looks:
1) UEFI recognizes 64GB or RAM and starts without any warning beeps
2) System is able to load GRUB loader - I can do selection or change parameters there
3) After making a choice, system freezes, no matter if I'm booting from local disks of external devices

I tried different combination of memory sticks and slots - any presence of new RAM is responsible for freezing, old RAM works flawless.

RAMs are on hardware compatibility list for this MoBo.

Any idea what can I check/test/change in MoBo configuration?]]> Wed, 05 Apr 2023 20:36:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=25730&PID=104366&title=extreme-4-z390-memory-problem#104366