AMD Motherboards - Cannot use dual channel

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Cannot use dual channel

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=13880
Printed Date: 08 Aug 2025 at 5:28pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Cannot use dual channel

Posted By: Jabewack18111984
Subject: Cannot use dual channel
Date Posted: 20 Mar 2020 at 2:17pm

I cannot let my board B450M Steel Legend use as dual channel. It shows 16GB (2*8GB) but in single channel.
The same memory test on another system is working well, how come?

Replies:

Posted By: ASRock_TSD
Date Posted: 20 Mar 2020 at 2:39pm

Dear Jabewack18111984,

Greetings, this is ASRock TSD.

To activate dual channel mode, it is required to install identical memory on A1/B1 or A2/B2 slot.

According to your question, we provide some suggestions for verifying:

1. Please press [F9] to load BIOS to default settings and press [F10] save and exit.
2. Make sure both memory are functional, please install one memory to each DRAM slot by turns to verify.
3. If possible, please change another CPU to verify since memory controller is built-in CPU.
4. If possible, please change another RAM.

Thanks!

All the best,
ASRock TSD