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How to force M2_2 PCI support with b450 pro4

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skardanaario View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote skardanaario Quote  Post ReplyReply Direct Link To This Post Topic: How to force M2_2 PCI support with b450 pro4
    Posted: 12 Feb 2024 at 11:01pm
Hello,

I have this same issue with B550M Pro4! When I attach a Kingston NV2 2TB NVME drive to M2_2 the board does not POST and boot just hangs. I have no SATA etc. devices attached, only another NVME on M2_1. The board boots just fine if I remove the secondary NVME from M2_2.

Could you please provide me a link for a beta BIOS for B550M Pro4 with Force M2_2?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ribasmudj Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2024 at 9:45am
I just stumbled on this thread since I'm having the same issue with the B650M-HDV/M.2 board, the second "Hyper" M2_2 slot isn't working on my gen4 Lexar NM790 drive, it's just not recognized ever in BIOS or Windows.

It does work on my older SN550 drive but it is dropping out on every sleep or cold boot, only restarting the PC makes it reappear.

Are there any beta BIOS versions for this board that may resolve this?
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Post Options Post Options   Thanks (1) Thanks(1)   Quote kerberos_20 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2024 at 6:00am
Originally posted by vikifah vikifah wrote:

please give me for B450M steel legend.
i cant use slot M.2_2 with my nvme.

https://www.asrock.com/mb/amd/b450m%20steel%20legend/#Specification

- 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module

as you can see, m2_2 supports just SATA drive, m2_1 supports both nvme and sata
if you plan to use multiple nvme drives, you would need to use pci-e to m2 adapter
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bownser Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jan 2024 at 12:01am
Originally posted by ASRock_TSD ASRock_TSD wrote:

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
i meant this bios
I have a 2700X installed as cpu
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bownser Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jan 2024 at 11:59pm
Hello
Can you confirm that I can use this BIOS with my B450 Pro4 (not B450M)
I'm having the same issue, board does not POST after installing m.2 nvme om m2_2, and there are no storage devices connecteD to SATA 3_3 and 3_4
Post stays on error A0 which indicates a SATA issue
NVME is Crucial MP600 Core XT PCIe 4.0 2TB of you can check compatibility
I found it weird that mobo did not post even with that installed on M2_1 alone with no other storage devices
Thanks in advance
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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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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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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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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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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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