https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Fri, 10 Jul 2026 03:07:24 +0000 Sat, 08 Feb 2025 09:48:12 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=92500 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180223&title=0d-error#180223 Author: Xaltar
Subject: 92500
Posted: 08 Feb 2025 at 9:48am

That is entirely up to you

Sorry I couldn't be of more help, you can try opening a support ticket with AMD
directly regarding your CPU, they may be able to help you out more.

Good luck.]]> Sat, 08 Feb 2025 09:48:12 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180223&title=0d-error#180223 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180220&title=0d-error#180220 Author: Veghcs1973
Subject: 92500
Posted: 08 Feb 2025 at 3:40am

Well then I'm using this in channel mode, can see all 64 GB, I'm not spending any more money on this PC]]> Sat, 08 Feb 2025 03:40:55 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180220&title=0d-error#180220 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180219&title=0d-error#180219 Author: Xaltar
Subject: 92500
Posted: 08 Feb 2025 at 3:30am

It only works using channel A, that means there is a good chance channel B on your
memory controller is either completely dead or can't handle your particular RAM
kit (in which case it is defective).

As I said before the IMC on the CPU has 2 channels, A and B. If one is working then
using that channel would result in a stable and fully usable system.

You can try checking your CPU for any missing or bent over pins, that can also
result in a channel dropping out but it's unlikely. The odds of a single pin
being perfectly bent in such a way that the CPU still fits in the socket is low.

The way the system RAM operates faster is by using 2 channels to the CPU. 2 channels
means double the bandwidth to and from the CPU and RAM. A single channel working
means the system still works but the performance takes a hit. Dual Channel vs
Single Channel performance. The system is behaving as if you only have 1 stick
of RAM installed because both are being accessed through a single channel rather
than split between 2. Basically the connection between the CPU and any RAM you
install in channel B is cut and given it's broken inside the CPU itself there is
no way to fix it. The CPU can still see and use RAM in channel A however so the
system continues to function normally given the RAM channels function independently
of one another. Like pulling a spark plug lead off a 2 cylinder engine while it's
running, you lose some power but the engine will continue to run. In the case of
a CPU however it won't damage the system to do so, you just lose half your peak
memory bandwidth.

If the CPU is new I would return it, simply because it isn't functioning
correctly, even if it is stable. If it is out of warranty there is no problem
using it in single channel, all you sacrifice is some RAM performance and in
most use cases you wouldn't notice the difference anyway.

I hope that makes sense. ]]> Sat, 08 Feb 2025 03:30:32 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180219&title=0d-error#180219 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180218&title=0d-error#180218 Author: Veghcs1973
Subject: 92500
Posted: 08 Feb 2025 at 3:27am

If the processor is faulty or damaged, it will not work in any mode]]> Sat, 08 Feb 2025 03:27:30 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180218&title=0d-error#180218 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180217&title=0d-error#180217 Author: Veghcs1973
Subject: 92500
Posted: 08 Feb 2025 at 3:21am

The problem is that everything is brand new, what are the chances that the new factory-packaged processor and motherboard are both defective?]]> Sat, 08 Feb 2025 03:21:27 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180217&title=0d-error#180217 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180216&title=0d-error#180216 Author: NDRE28
Subject: 92500
Posted: 08 Feb 2025 at 3:13am

Hi!

As I see it, just like Xaltar already said, it's one channel of the memory controller of the CPU that's faulty.
The other possibility is that the B channel of the motherboard is faulty.

I'd do this test, if possible, I'd replace the CPU with another one, to see if the problem gets solved.

If replacing the CPU doesn't solve the problem, then the problem is the motherboard.

(You could also take out your CPU, and use it on another motherboard, to see if it runs normally on that motherboard). ]]> Sat, 08 Feb 2025 03:13:55 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180216&title=0d-error#180216 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180215&title=0d-error#180215 Author: Veghcs1973
Subject: 92500
Posted: 08 Feb 2025 at 2:59am

What is the explanation for the fact that the motherboard, CPU and everything work perfectly and stably in single channel mode?]]> Sat, 08 Feb 2025 02:59:09 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180215&title=0d-error#180215 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180174&title=0d-error#180174 Author: Xaltar
Subject: 92500
Posted: 07 Feb 2025 at 2:37am

It sounds like your 5900x might have a bad memory controller. The IMC (integrated
memory controller) is located on the CPU and has 2 channels, one for the A slots
and one for the B slots. If one of the channels is bad then the issue you are
experiencing would happen.

If you can, I would RMA that CPU. As one of the more expensive components in your
system I wouldn't take a risk on not returning it. Bad memory controllers are sadly
quite common failure points on new CPUs these days. Generally speaking, they either
arrive already failed out the box or fail very shortly after being set up. If
the system remains stable for a week or more it's unlikely you would encounter
an error with the IMC. I hope that makes sense. Basically the IMC fails at the
start or not at all.

Good luck.]]> Fri, 07 Feb 2025 02:37:57 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180174&title=0d-error#180174 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180116&title=0d-error#180116 Author: Veghcs1973
Subject: 92500
Posted: 06 Feb 2025 at 11:38pm

No matter what ram I put in slot B1 or B2, it immediately 0d error and does not work with any known method, but in slot A1 A2 everything works without error]]> Thu, 06 Feb 2025 23:38:51 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=180116&title=0d-error#180116 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=176993&title=0d-error#176993 Author: Veghcs1973
Subject: 92500
Posted: 28 Jan 2025 at 12:14am

I would rather guess that the motherboard cannot operate this DRAM in 3600 MHz dual channel mode. If possible, I will try a different type and a smaller 3200 MHz DRAM.]]> Tue, 28 Jan 2025 00:14:48 +0000 https://forum.asrock.com/forum_posts.asp?TID=92500&PID=176993&title=0d-error#176993