AMD Motherboards - B450M PRO4 Hardware reserved memory

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B450M PRO4 Hardware reserved memory

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=12974
Printed Date: 06 Aug 2025 at 3:03pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: B450M PRO4 Hardware reserved memory

Posted By: Wolyahwa
Subject: B450M PRO4 Hardware reserved memory
Date Posted: 26 Nov 2019 at 2:24pm

Hello,

i get the problem today with the memory, windows 10 display HARDWARE RESERVED MEMORY is 7.6GB strange number, and BIOS show single channel instead dual-channel.
But if I only install one DIMM, it shows 50.2 MB seems normal.
Install two will show 7.6GB again.

Clear cmos still have this issue. could anyone help me to fix this symptom?

kindly

Replies:

Posted By: ASRock_TSD
Date Posted: 26 Nov 2019 at 2:34pm

Dear Wolyahwa,

Greetings, this is ASRock TSD.

The hardware reserve is much related to the system configuration or OS environment.

According to your question, we have some suggestions for you to verify:

1. Please enter BIOS setup and load BIOS default setting via [F9] key.

2. Install the memory module to A2/B2 slot and check if system will show Dual-Channel mode under BIOS>Main page.

3. Please reinstall a clean Windows 10 OS.

4. If possible, please install another memory module.

Thanks!

All the best,
ASRock TSD