Fix - x670e Taichi M.2 Appears as Removable Device
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=25490
Printed Date: 26 Mar 2025 at 3:23am Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Fix - x670e Taichi M.2 Appears as Removable Device
Posted By: mcstagg
Subject: Fix - x670e Taichi M.2 Appears as Removable Device
Date Posted: 18 Feb 2023 at 12:08am
Hello all,
I have seen a few people mention that they were experiencing what appeared to be a bug with the x670e Taichi board showing M.2 drives as removable devices in Windows.
The fix is simple. Disable Thunderbolt in BIOS and the M.2 drive in slot M2_1 will stop appearing as removable.
I originally reported this to ASRock support and credit to them as they provided me with the reason this was happening and the solution to resolve it, quoted below.
"Although not certified for Thunderbolt, this motherboard actually has an Intel USB4 Controller (Maple Ridge). We tied that controller to the CPU. Just like M2_1, Thunderbolt requires hot plug support.
Because both are tied to the CPU, we cannot disable hot plug for one and keep it enabled for the other. AM5 has no native support for Thunderbolt, and our creative solution comes with this minor downside."
I have tested this and confirmed it works and it doesn't outright disable the ports on the motherboard which is an ok compromise if you don't plan on using Thunderbolt capabilities. If you do use Thunderbolt then for now you just have to live with the drive appearing as removable and be careful not to eject the drive by accident.
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Replies:
Posted By: Katana1074
Date Posted: 18 Feb 2023 at 1:46am
Hi mcstagg, Thanks for posting the fix.....
Regards
Katana1074
------------- CPU: RYZEN 7950x | Motherboard: ASROCK X670E TAICHI | GPU: MSI RTX4090 LIQUID X 24GB | RAM: FURY X DDR5 C40 | Hard Drive: INTEL OPTANE 900P 480GB,1 x SAMSUNG 980 PRO 2TB,2 X ADATA S8200X 2TB
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Posted By: SereneScream
Date Posted: 22 Sep 2023 at 3:31am
mcstagg wrote:
The fix is simple. Disable Thunderbolt in BIOS and the M.2 drive in slot M2_1 will stop appearing as removable.
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Nice, thanks for sharing... and Asrock if your lurking and listening, please provide us an option to disable hotplug on a per per M.2 slot basis like you do with SATA
Thanks
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Posted By: kerberos_20
Date Posted: 22 Sep 2023 at 12:48pm
SereneScream wrote:
Nice, thanks for sharing... and Asrock if your lurking and listening, please provide us an option to disable hotplug on a per per M.2 slot basis like you do with SATA
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i really doubt that they can do anything about it m2 nvme was not designed with hotplug in mind, unlike SATA PCI express was designed as hot plugable in mind...thunderbolt is wired to CPU pcie lanes, meaning they can either enable/disable hotplug on CPU pcie lanes, not on device itself so even your GPU is hot swapable now :D
its something that could be fixed inside operating system...say with chipset driver? which would change registry keys for CPU m2 slots to be internal
------------- http://valid.x86.fr/diq4l4" rel="nofollow"> http://www.userbenchmark.com/UserRun/47132492" rel="nofollow - userbenchmark
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