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M.2 Not Readable

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=11887
Printed Date: 28 Jul 2025 at 5:04pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: M.2 Not Readable
Posted By: Ilikegames
Subject: M.2 Not Readable
Date Posted: 15 Jul 2019 at 2:06am
Hey guys,
So I just bought a AsRock B450m Pro 4 chipset and I tried putting in an m.2 on the board that's labeled Ultra M.2 but it wont read.

There are 2 ports, so I tried putting on the other m.2 slot and it can read the m.2.

The m.2 is a kingston a400 240gb m.2 ssd

What I want to know is why wont it read on my ultra m.2 slot and only the other one? Is my mobo faulty or is there some sort of special rule?

Thank you in advance.



Replies:
Posted By: xhue
Date Posted: 15 Jul 2019 at 2:37am
Answer is really simple - your board's topmost M.2 is accepting PCIe (NVMe) drives only.

Your Kingston is a SATA drive and as such it can only work in the bottom slot.

You may want to refer to mobo's webpage and manual.


Posted By: Ilikegames
Date Posted: 15 Jul 2019 at 2:51am
Okay thank you my friend!
So basically I need an nvme m.2 to use that slot right?


Posted By: xhue
Date Posted: 15 Jul 2019 at 6:55am
Originally posted by Ilikegames Ilikegames wrote:

Okay thank you my friend!
So basically I need an nvme m.2 to use that slot right?


Correct. Best to check the storage QVL for 100% compatibility as some exotic models may not be supported.



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