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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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Points: 20 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Cuban Quote  Post ReplyReply Direct Link To This Post Topic: How to force M2_2 PCI support with b450 pro4
    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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Points: 8547 		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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asrock_user_999 View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote asrock_user_999 Quote  Post ReplyReply Direct Link To This Post Posted: 28 Dec 2023 at 1:42am
I have the same issue! Asrock b450 Pro4 trying to put Crucial PCIe 3.0 NVMe M.2 SSD on the M2_2 slot and boot just hangs. I don't have SATA 3_1 or 3_2, I just have M2_1 filled and that boots fine. When I install the Crucial SSD in M2_2 I get the BIOS screen but nothing else and keyboard doesn't work.

The link above didn't work for me. Could you please provide a link for the beta BIOS with Force M2_2?
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ASRock_TSD View Drop Down
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Points: 8547 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 29 Dec 2023 at 2:53pm
Dear Customer,
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/Temp/B45P4_10.zip

Thank you

Yours truly,
ASRock TSD
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Vlada View Drop Down
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Vlada Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2023 at 6:53am
I have the same issue with asrock b450m pro4 r2.0 the version of teh UEFI does not work for me. It sasy image not found when I try to Instant flash. Please help. The M2-2 slot isnt working
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Vlada View Drop Down
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Vlada Quote  Post ReplyReply Direct Link To This Post Posted: 30 Dec 2023 at 7:20am
The SSD in question are Samsung 970 EVO Plus and Kingston NV2 1TB PCle 4.0 M.2 2280 NVMe
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j0m3r View Drop Down
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote j0m3r Quote  Post ReplyReply Direct Link To This Post Posted: 01 Jan 2024 at 4:27pm
Please give me the one for B450M Pro4 R2.0 too, this link has a BIOS file with .03A filetype and it's not recognize on my MB (need 0.1)
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ASRock_TSD View Drop Down
ASRock_Official
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Points: 8547 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jan 2024 at 6:05pm
Dear Customer,
Thank you for the posting.

For this case, we are sorry to inform you that M2_2 slot only supports SATA3 6.0 Gb/s module.

Please kindly refer to the specification of Storage.
https://www.asrock.com/MB/AMD/B450M%20Pro4%20R2.0/index.asp#Specification

Thank you

Yours truly,
ASRock TSD
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j0m3r View Drop Down
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote j0m3r Quote  Post ReplyReply Direct Link To This Post Posted: 03 Jan 2024 at 6:41pm
It's say ASRock Ultra M.2 (PCIe Gen3 x4)
what the hell are you on about?
I asked for BIOS
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vikifah View Drop Down
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Points: 15 		Post Options Post Options   Thanks (0) Thanks(0)   Quote vikifah Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jan 2024 at 6:09pm
please give me for B450M steel legend.
i cant use slot M.2_2 with my nvme.
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