https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Mon, 13 Jul 2026 05:43:26 +0000 Thu, 30 Oct 2025 05:49:13 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=26950 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=26950&PID=200300&title=how-to-force-m2-2-pci-support-with-b450-pro4#200300 Author: idHeretic
Subject: 26950
Posted: 30 Oct 2025 at 5:49am

ASRock_TSD wrote: 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

This worked for me. Just remember that if you have other drives in sata ports you can only use ports A1 and A2 with nvme installed in M2_2.]]> Thu, 30 Oct 2025 05:49:13 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=200300&title=how-to-force-m2-2-pci-support-with-b450-pro4#200300 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=198665&title=how-to-force-m2-2-pci-support-with-b450-pro4#198665 Author: UncleZip
Subject: 26950
Posted: 07 Aug 2025 at 6:42pm

I updated the bios of my Asrock B450 Pro4 to 10.41 (latest beta) and this has enabled me to use a Crucial P3 500GB M.2 NVME SSD (CT500P3SSD8) in slot M2_1 whic is working fine. Peror to this bios update, I had tried it and the pc would not boot. I have an Integral 500GB NVME M.2 2280 PCIe Gen3x4 in slot M2_2 and force M2_2 to support PCIe set to auto in the bios.

Crystal Disk Mark 7 is reporting read speeds for the Crucial P3 of up to 3639 MB/s and 1661 MB/s write speeds.


MY PC
ASRock B450 Pro4
AMD Ryzen 5 3600
32GB RAM 1600.0 MHz (DDR4-3200 / PC4-25600)
ASUS DUAL RX 580 OC 8GB]]> Thu, 07 Aug 2025 18:42:15 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=198665&title=how-to-force-m2-2-pci-support-with-b450-pro4#198665 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=135389&title=how-to-force-m2-2-pci-support-with-b450-pro4#135389 Author: Outpost6
Subject: 26950
Posted: 27 Jul 2024 at 7:10am

Thanks for that. I was tearing my hair out trying to get my WD_Black SN850X working and almost gave up when I saw it explicitly "not supported due to pin changes" but it works great in the M2_2 slot on 10.08!]]> Sat, 27 Jul 2024 07:10:10 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=135389&title=how-to-force-m2-2-pci-support-with-b450-pro4#135389 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=124157&title=how-to-force-m2-2-pci-support-with-b450-pro4#124157 Author: offmyrocker123
Subject: 26950
Posted: 03 Jun 2024 at 1:30am

For those stopping in here for a solution.

Bios version 10.08 for the ASRock B450 Pro4 (full atx) worked. for me.

I was on version 4.20 with no luck moving my m.2 nvme pci 3x4 drive from M2_1 to M2_2. I wanted to free up m2_1 so I can try to use PCIE4.

After updating the bios I enabled the "Force m2_2" feature under storage options and all is well.

There is a warning not to use this bios with Summit Ridge (Ryzen 1800x for me) but it was worth a shot because otherwise I was going to go buy a new mobo and it worked fine so far.

Now I just need to figure out why PCIE4 is still not detecting https://forum.asrock.com/smileys/smiley11.gif]]> Mon, 03 Jun 2024 01:30:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=124157&title=how-to-force-m2-2-pci-support-with-b450-pro4#124157 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=111379&title=how-to-force-m2-2-pci-support-with-b450-pro4#111379 Author: skardanaario
Subject: 26950
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?]]> Mon, 12 Feb 2024 23:01:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=111379&title=how-to-force-m2-2-pci-support-with-b450-pro4#111379 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109215&title=how-to-force-m2-2-pci-support-with-b450-pro4#109215 Author: ribasmudj
Subject: 26950
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?]]> Wed, 17 Jan 2024 09:45:04 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109215&title=how-to-force-m2-2-pci-support-with-b450-pro4#109215 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109128&title=how-to-force-m2-2-pci-support-with-b450-pro4#109128 Author: kerberos_20
Subject: 26950
Posted: 12 Jan 2024 at 6:00am

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]]> Fri, 12 Jan 2024 06:00:40 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109128&title=how-to-force-m2-2-pci-support-with-b450-pro4#109128 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109115&title=how-to-force-m2-2-pci-support-with-b450-pro4#109115 Author: bownser
Subject: 26950
Posted: 12 Jan 2024 at 12:01am

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]]> Fri, 12 Jan 2024 00:01:45 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109115&title=how-to-force-m2-2-pci-support-with-b450-pro4#109115 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109114&title=how-to-force-m2-2-pci-support-with-b450-pro4#109114 Author: bownser
Subject: 26950
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]]> Thu, 11 Jan 2024 23:59:46 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=109114&title=how-to-force-m2-2-pci-support-with-b450-pro4#109114 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=108910&title=how-to-force-m2-2-pci-support-with-b450-pro4#108910 Author: vikifah
Subject: 26950
Posted: 05 Jan 2024 at 6:09pm

please give me for B450M steel legend.
i cant use slot M.2_2 with my nvme.]]> Fri, 05 Jan 2024 18:09:54 +0000 https://forum.asrock.com/forum_posts.asp?TID=26950&PID=108910&title=how-to-force-m2-2-pci-support-with-b450-pro4#108910