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How to force M2_2 PCI support with b450 pro4

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Cuban View Drop Down
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Joined: 01 Nov 2023
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    Posted: 01 Nov 2023 at 7:58pm
Hi. My new Crucial P3 1TB won?t show up in UEFI if plugged in the second nvme slot of my motherboard.

the disk is functional and works in the pocket. I found on another website a bios update for the Asrock B450 pro4 R2.0 board that forces the use of the M2_2 slot.

It has a beta bios with a new option called Force M2_2 to support PCIe type device which will force switch between SATA or PCI-E M2_2.


Please help me with my issue ;)
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ASRock_TSD View Drop Down
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Joined: 20 Mar 2015
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 20 Nov 2023 at 2:07pm
Dear Cuban,
Thank you for the posting.

For this case, please kindly download the BIOS 10.03A from the link below and update the BIOS to see if the M.2 SSD installed in the M2_2 slot can be recognized.
https://download.asrock.com/TSD/Desktop/11828/Temp/B45P4T1003A.zip

Instant Flash: https://www.asrock.com/support/BIOSIG.asp?cat=BIOS10

Thank you

Yours truly,
ASRock TSD
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