https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 19 Sep 2026 22:38:58 +0000 Tue, 28 Jul 2026 03:05:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=113555 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201865&title=z390-phantom-gaming-4-ram-question#201865 Author: Xaltar
Subject: 113555
Posted: 28 Jul 2026 at 3:05am

Ah, yeah, that explains it. No problem at all, time spent trying to help someone
is never a waste ]]> Tue, 28 Jul 2026 03:05:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201865&title=z390-phantom-gaming-4-ram-question#201865 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201864&title=z390-phantom-gaming-4-ram-question#201864 Author: Jvpix.com
Subject: 113555
Posted: 28 Jul 2026 at 2:56am

Hi Xaltar, I found out that the memory is ECC memory. it came from a spare machine that wasn't being used anymore. Sorry to have wasted your time.]]> Tue, 28 Jul 2026 02:56:44 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201864&title=z390-phantom-gaming-4-ram-question#201864 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201861&title=z390-phantom-gaming-4-ram-question#201861 Author: Xaltar
Subject: 113555
Posted: 26 Jul 2026 at 2:33am

The memory itself is the same but it is tuned differently for the different platforms.
This can lead to incompatibility. Sadly, not all RAM is compatible with all the
motherboards it can fit into. This has been a major issue since DDR3 and only gotten
worse since. If you have another DDR4 system to try it in I would do so. If not,
I would return it for a refund. ]]> Sun, 26 Jul 2026 02:33:31 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201861&title=z390-phantom-gaming-4-ram-question#201861 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201860&title=z390-phantom-gaming-4-ram-question#201860 Author: Jvpix.com
Subject: 113555
Posted: 26 Jul 2026 at 12:31am

no the memory that is working is 16, 8, 8 and 8. they are all currently working. I put the 16 in the A2 slot. the ones that don't work are all 16gb, 2666v. so you're saying memory made for an AMD machine is different than that of an intel machine?]]> Sun, 26 Jul 2026 00:31:13 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201860&title=z390-phantom-gaming-4-ram-question#201860 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201859&title=z390-phantom-gaming-4-ram-question#201859 Author: Xaltar
Subject: 113555
Posted: 26 Jul 2026 at 12:17am

It sounds like your 16gb module/s are not supported on your board. RAM compatibility
can be a problem. Please list the brand and model numbers for each of your RAM modules.
I thought based on your posts that you were using 4 8gb modules from different brands
or models. Now you are saying you are mixing capacities too. That can be very
problematic when using 4 modules together.

See if the 3 8gb modules work together (just with the 3 modules). Your 16gb module
might be incompatible with your system (made for AMD boards possibly).

Edited by Xaltar - 26 Jul 2026 at 12:18am]]> Sun, 26 Jul 2026 00:17:05 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201859&title=z390-phantom-gaming-4-ram-question#201859 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201858&title=z390-phantom-gaming-4-ram-question#201858 Author: Jvpix.com
Subject: 113555
Posted: 26 Jul 2026 at 12:01am

ok I put that setting to 2666v and it made no difference. so I put all my original memory back in. by the way, my original memory is all 2400v, but one module is 16gb and the other three are 8gb. could that configuration have made some kind of change in the bios that is preventing the 2666v modules to work?]]> Sun, 26 Jul 2026 00:01:32 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201858&title=z390-phantom-gaming-4-ram-question#201858 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201857&title=z390-phantom-gaming-4-ram-question#201857 Author: Jvpix.com
Subject: 113555
Posted: 25 Jul 2026 at 11:42pm

ok I put each of the new 16gb 2666v memory in the A2 slot and the machine would never boot.   I then put a module in the A2 and B2 slot, still not bootup. I put in the original 16gb 2400v memory in the A2 slot and the machine boots up. I find it hard to believe all 4 of the 2666v memory modules are bad. I went into the bios and in the OC Tweaker section and noticed the DRAM Frequency was set to "DDR4-2133 (1:16) Auto". should I change it to "DDR4-2166" and try the 2666v memory again? ]]> Sat, 25 Jul 2026 23:42:02 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201857&title=z390-phantom-gaming-4-ram-question#201857 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201856&title=z390-phantom-gaming-4-ram-question#201856 Author: Xaltar
Subject: 113555
Posted: 25 Jul 2026 at 11:40pm

Did you move the display cable to a different output? That usually means the system
didn't detect the monitor where it expected it during POST (Power On Self Tests).
Try connecting your display to different outputs when you power on and see if it
displays the POST menu then (F2 to enter BIOS plus the ASRock splash screen). The
operating system will detect the display even if it isn't connected where the BIOS
expects it. If you didn't move the display cable then I don't know what could
have caused it, the BIOS being reset possibly.

Did you manage to get all the RAM working together?]]> Sat, 25 Jul 2026 23:40:34 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201856&title=z390-phantom-gaming-4-ram-question#201856 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201855&title=z390-phantom-gaming-4-ram-question#201855 Author: Jvpix.com
Subject: 113555
Posted: 25 Jul 2026 at 11:08pm

why is it that ever since I tried getting these 16gb memory modules working in my machine, now when I turn on my machine, the screen is totally blank until it gets to the windows 11 login screen? I never get the prompt to press F2 for the bios.]]> Sat, 25 Jul 2026 23:08:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201855&title=z390-phantom-gaming-4-ram-question#201855 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201853&title=z390-phantom-gaming-4-ram-question#201853 Author: Xaltar
Subject: 113555
Posted: 25 Jul 2026 at 4:34am

My mistake with the thread location but yes, the info is identical across platforms.

Moved to the appropriate section.]]> Sat, 25 Jul 2026 04:34:15 +0000 https://forum.asrock.com/forum_posts.asp?TID=113555&PID=201853&title=z390-phantom-gaming-4-ram-question#201853