AMD Motherboards - 16gb RAM shown on Windows and but only running 8gb

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16gb RAM shown on Windows and but only running 8gb

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=14737
Printed Date: 09 Aug 2025 at 9:37pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: 16gb RAM shown on Windows and but only running 8gb

Posted By: lexandre91
Subject: 16gb RAM shown on Windows and but only running 8gb
Date Posted: 21 Jun 2020 at 7:10am

Hi guys, I'm not sure what happened but everything was fine for 2y straight until these few days. My PC has been freezing, so the 1st thing came into my mind was maybe I ran out of RAM? So I checked 'Task Manager' and you can see it from the image file below, it shows 16gb is available but only 8gb is used.

I tried looking around Google, and I tried testing each RAM one by one on each SLOTS and everything is just fine, booting.

CPUz looks fine, I guess... If so I've no idea what happened, anyone here got a solution for this problem?

I'm using ASROCK B450M-HDV by the way, and yup I've updated to the latest firmware that ASROCK recommends, and also it's been more MONTHS now.

EDIT:

OS: Windows 10 64-bit

Mobo: ASROCK B450M-HDV

CPU: Ryzen 5 2600

RAM: https://www.hyperxgaming.com/unitedstates/us/memory/fury-ddr4 x 2

https://imgur.com/di4D4bY <---- Task Manager

https://imgur.com/6RYkpwT <---- CPUz

https://imgur.com/09UYBKs <---- BIOS

https://imgur.com/FjCTvHQ <---- My Computer

Replies:

Posted By: ThreeDee
Date Posted: 22 Jun 2020 at 12:17pm

BIOS says single channel mode when it should say dual channel
When either stick is installed by themselves .. does windows show 8gb usable?

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|Ryzen 5 5900|ASRock X570 Taichi-BIOS 4.60|2x16GB HyperX Predator RGB 3200@3600 1:1 IF|ASRock RX 6700XT|2 x PCIe 4.0 M.2 Drives for OS & Games|850 WTT Seasonic 80+ Titanium PSU|Noctua NH-D15|