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How to force M2_2 PCI support with b450 pro4 |
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bownser 
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Joined: 11 Jan 2024 Status: Offline Points: 30 |
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 Posted: 11 Jan 2024 at 11:59pm |
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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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bownser
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Joined: 11 Jan 2024 Status: Offline Points: 30 |
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Posted: 12 Jan 2024 at 12:01am |
I have a 2700X installed as cpu |
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kerberos_20
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Joined: 06 Dec 2017 Location: czech republic Status: Offline Points: 3657 |
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Posted: 12 Jan 2024 at 6:00am |
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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ribasmudj
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Joined: 12 Jan 2024 Status: Offline Points: 35 |
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Posted: 17 Jan 2024 at 9:45am |
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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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skardanaario
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Joined: 12 Feb 2024 Status: Offline Points: 15 |
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Posted: 12 Feb 2024 at 11:01pm |
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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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ASRock_TSD wrote: