AMD Motherboards - Installing Win10 on m.2 with csm disabled

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Installing Win10 on m.2 with csm disabled

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=13299
Printed Date: 07 Aug 2025 at 10:32am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Installing Win10 on m.2 with csm disabled

Posted By: dmikester1
Subject: Installing Win10 on m.2 with csm disabled
Date Posted: 31 Dec 2019 at 9:00am

I just upgraded my parents PC with a B450M Pro 4 and Ryzen 3 3200G. I also got a nice 512GB Intel m.2 NVME SSD. Now, I have created a USB install flash drive with Ruckus. From my research, I should be disabling CSM in the UEFI BIOS. When I do that, and save and exit the windows installer says it can't find a disk 0 and when I go into the UEFI, I'm not seeing the m.2 drive or any other drive than the usb drive. How do I get Windows installed with CSM disabled?

Replies:

Posted By: jdillipl
Date Posted: 03 Jan 2020 at 3:41am

In which M.2 socket do you have the Intel NVME drive installed? From the user guide, it appears that you should be using the one closest to the CPU sockets, labeled M2_1

Jake

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Asrock X370 Killer SLI/ac, Amd Ryzen 7 5700X, GSkill Flare X F4-2400C16D-32GFX, RaidMax Thunder V2 735W PS

Posted By: JayB33
Date Posted: 03 Jan 2020 at 1:53pm

The disk needs to be initialized as GPT to be recognized as a UEFI boot disk.