https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 13 May 2026 00:41:35 +0000 Mon, 24 Jun 2024 05:00:41 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=14739 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=14739&PID=127566&title=dual-channel-issue#127566 Author: Pintobeany
Subject: 14739
Posted: 24 Jun 2024 at 5:00am

It is apparent from many other posts that asrock motherboards have a consistent problem with handling newer RAM in dual channel. I hope this issue can be solved.]]> Mon, 24 Jun 2024 05:00:41 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=127566&title=dual-channel-issue#127566 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83319&title=dual-channel-issue#83319 Author: Xaltar
Subject: 14739
Posted: 22 Jan 2021 at 7:32pm

Glad to hear it

Bent pins is another fairly common cause of missing channels though nowhere near
as common as faulty CPUs these days. Excessive mounting pressure alone can cause
the issue, even if the pins are not bent the CPU can warp causing some pins to
make poor contact.

I list this here for anyone finding this thread via search with similar issues.]]> Fri, 22 Jan 2021 19:32:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83319&title=dual-channel-issue#83319 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83316&title=dual-channel-issue#83316 Author: bow_bell
Subject: 14739
Posted: 22 Jan 2021 at 4:40pm

I've solved the problem:

I discovered that dual channel worked if I removed the CPU cooler, I then inspected the motherboard CPU bed and discovered a couple of bent pins. (With the hinge for the CPU at the top the damage was top right corner, very edge). After straightening the pins using a sewing needle and magnifying glass (very good video on Linus Tech Tips about this) and hey presto the PC runs flawlessly!

In summary dual channel now works after fixing bent pins on motherboard CPU bed (top right corner). There have been various other forum postings with similar issues especially after replacing the CPU cooler (eg Cooler Master Hyper 212) and accusing having too much pressure on the CPU.
]]> Fri, 22 Jan 2021 16:40:44 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83316&title=dual-channel-issue#83316 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83301&title=dual-channel-issue#83301 Author: Xaltar
Subject: 14739
Posted: 21 Jan 2021 at 11:41pm

As a general rule, with modern systems, if you have a bad or completely non functional
RAM channel RMA your CPU. About 90% of the time if you can't get RAM to work in
one of your channels the CPU memory controller is dead/dying. Now if the RAM works
in both channels but you are stuck in single channel mode despite having RAM in the
correct slots for dual channel operation, make sure the RAM is fully seated.
The RAM not being all the way seated is almost always behind missing dual channel
when the RAM is in the correct slots (A2 and B2 or all 4 slots).]]> Thu, 21 Jan 2021 23:41:44 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83301&title=dual-channel-issue#83301 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83297&title=dual-channel-issue#83297 Author: bow_bell
Subject: 14739
Posted: 21 Jan 2021 at 11:36am

Any progress with this issue? I'm having exactly the same issue. Building a gaming rig for a friend using 2 sticks of Corsair DDR4 8Gb, i5 10400F and a Z490 board and only was I can get it to work is to put the sticks in channel B. If I put any sticks in A it does not boot.]]> Thu, 21 Jan 2021 11:36:54 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=83297&title=dual-channel-issue#83297 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=82923&title=dual-channel-issue#82923 Author: Jokergod2000
Subject: 14739
Posted: 08 Jan 2021 at 11:21pm

Oh god, I have the same issue. Replaced RAM and MB, working on an RMA for the CPU now. Anyone resolve this?]]> Fri, 08 Jan 2021 23:21:15 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=82923&title=dual-channel-issue#82923 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=80792&title=dual-channel-issue#80792 Author: geekerator
Subject: 14739
Posted: 21 Oct 2020 at 4:40am

Same problem here (no dual channel operation - BUT single channel using B1 & B2 for the memory works perfectly throughout all the hardware replacements cited below), except I have gone through many more steps: replaced the MB, then replaced the CPU and memory, then replaced MB again. Finally, shipped MB+CPU+memory to ASRock for diagnosis. ASRock tech said CPU MUST BE DEFECTIVE, so they are sending the whole mess back to me again for a third CPU replacement. How likely is it that 3 CPUs, 2 sets of memory, and 3 different MBs all exhibit EXACTLY the same symptoms. Also, all PSU pins have been probed with a bench voltmeter and were right on spec.

System is Z490 Taichi, i9-10900K, 32GB DDR4-3600 memory with nothing else installed (i.e., its on the bench).]]> Wed, 21 Oct 2020 04:40:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=80792&title=dual-channel-issue#80792 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77250&title=dual-channel-issue#77250 Author: Xaltar
Subject: 14739
Posted: 15 Jul 2020 at 2:31am

It makes perfect sense, a faulty/intermittent IMC, given you have tried different
boards and RAM, is the only component that can cause the symptoms you describe.

If it was RAM, that would mean you used 2 completely incompatible model kits. Even
then, they should have worked at 2133 in dual channel. The IMC is not a simple
circuit, it relies on voltage etc the same as the CPU and is also required to
run out of spec in order to achieve XMP frequencies.

You can try raising the RAM and related voltages by 0.01v then 0.02v up to
0.05v and see if that stabilizes the RAM in dual channel. There are numerous
tutorials out there on RAM overclocking and what voltages are related. However, if
this works then your IMC is definitely not working correctly. The reason I say
RMA the CPU is because intermittent can suddenly turn to completely dead.

You can also carefully check and clean the bottom of the CPU, dirt or residue on
the contact pads can cause the issues you are describing too but if that were the
case, it would be the same RAM channels not working on both boards (A or B).

I know it's inconvenient but it could save you a lot of headaches down the line.
If I am correct, and I strongly suspect I am given similar issues here on the
forums in the past, the IMC is not functioning correctly and could die on you
completely in time.]]> Wed, 15 Jul 2020 02:31:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77250&title=dual-channel-issue#77250 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77247&title=dual-channel-issue#77247 Author: seanp2500
Subject: 14739
Posted: 15 Jul 2020 at 12:46am

thanks for the suggestion but gosh my ability to think logically has a real hard time with this.

So remember key here is pc works great. I am actually typing to you on it. Benchmarked the heck out of cpu. Gamed alot on it. PC runs great other than that one slight problem. So I am thinking bios/compatibility. But the main reason I think that would be nutz is that first mobo A1 B1 work second A2 B2 work. So how on earth could that possibly be faulty cpu? Like I am thinking in terms of how the component functions. That just would not make any sense. Keep in mind rma time and all that. I just went through an rma blah blah. So no I will not be rma my cpu as I just don't think that is the problem.

So basically at this point I am looking for other solutions that I can actually attempt fairly easily. CPU is only thing I have left to try in terms of components as psu and ram were already tried. I honestly think this is a bios issue with this specific cpu.

]]> Wed, 15 Jul 2020 00:46:26 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77247&title=dual-channel-issue#77247 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77246&title=dual-channel-issue#77246 Author: Xaltar
Subject: 14739
Posted: 15 Jul 2020 at 12:40am

Return the CPU, if you have tested 2 different boards, the RAM works in single channel
and still have the issue then odds are high that you have a faulty IMC on your CPU.

We see failed CPUs more and more frequently these days, from both intel and AMD.
Most commonly, bad IMCs (Integrated memory controllers).]]> Wed, 15 Jul 2020 00:40:04 +0000 https://forum.asrock.com/forum_posts.asp?TID=14739&PID=77246&title=dual-channel-issue#77246