New BIOS for MSI X870E Carbon Wi-Fi Released

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sheni_re154702d9

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New BIOS 7E49v1A33 has been released today. I am curious about the impressions of those who have already installed it. Any issues encountered during or after the update? Thank you!
 
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Slightly newer version, 7E49v1A7D, has been released. I suppose it contains some improvements and bug fixes over its predecessor, 7C, but still not convinced that I need to apply it. Will wait for at least a final version of AGESA 1.3.0.0.
 
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A new BIOS has landed - 7E49v1A8:
- AGESA PI pre-1.3.0.0 updated.
- Enable the "BIOS UEFI/CSM Mode" option.

Unfortunately, it is still pre-1.3.0.0 release.
Any idea what does this "BIOS UEFI/CSM Mode" option do? If it is about the support for legacy devices, I think that the old BIOS versions supported them too.
 
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Has been running with this version since yesterday, seems to be quite stable so far, no issues with the settings I have been using since the start.
One noticeable difference in the menus is the "Microsoft Security Level 2" option directly below the "MSI Driver Utility Installer" option, if I remember correctly. Have no idea what it does 😁 so I left it on Enabled, which was the default value.

Update: Looked for this new option in Google, here is the AI-generated answer: "Microsoft Security Level 2 in new MSI BIOS, often seen on recent AMD (AM5) and Intel motherboards, streamlines activation of advanced hardware-backed security, specifically supporting DRTM (Dynamic Root of Trust for Measurement) and SMM isolation to meet Windows 11 "Secured-core PC" standards. It is enabled in the BIOS Security menu, typically optimizing security without sacrificing performance. " I also noticed that this has been mentioned in the forums here.
 
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I realised late that this new BIOS 7E49v1A8 had been released. I installed it and was very pleasantly surprised by a small reduction in idle temperatures.

However, the next time I tried to reboot the computer was a disaster: boot diagnosis loops, with various things blamed (clfs.sys at first, then various errors seemingly related to memory errors — most commonly KMODE EXCEPTION).

At best, I could only reach blue Windows pre-boot troubleshooting options, but none of them, including Safe Mode, could actually be used without an error forcing another reboot. I also couldn't Ctrl+F5 from the UEFI welcome screen, so thank goodness for the BIOS Flash button feature! I was able to roll back to the previous BIOS this way (7E49v1A7E) and now I'm back into Windows as normal (with my fingers crossed for the next session).

Does this issue sound familiar to anyone with regard to this recent update?

CPU: 7950X
RAM: Corsair Vengeance 6000 (using EXPO setting in BIOS)
No over- or under-clocks, only BIOS settings for fan control
 
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I usually post here when there is a new BIOS. But no new BIOS released for two months leaves me scratching my head what MSI are doing. I monitor the support page of an ASUS motherboard that I considered as an alternative before buying this one and they released beta BIOS with ComboAM5 PI 1.3.0.0a as early as on 25 Feb and a non-beta version yesterday. No news coming from MSI though.
 
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I noticed MSI has been busy releasing a slew of updates for B650(E) and X670(E) boards for Agesa pre 1.3.0.0 when checking AM5 AGESA/UEFI/BIOS List | SMU AM5/AM4 Table. I guess that's why that is. I am on an X870E system as well and have also been wondering. I figure there will be releases for Agesa 1.3.0.0a upcoming as MSI releases more BIOS updates than Asrock or Gigabyte.
 
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ericj159802e9 said:
I noticed MSI has been busy releasing a slew of updates for B650(E) and X670(E) boards for Agesa pre 1.3.0.0 when checking AM5 AGESA/UEFI/BIOS List | SMU AM5/AM4 Table. I guess that's why that is. I am on an X870E system as well and have also been wondering. I figure there will be releases for Agesa 1.3.0.0a upcoming as MSI releases more BIOS updates than Asrock or Gigabyte.
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Hm, interesting... From this table it turns out that even Asrock and Gigabyte have BIOS releases with 1.3.0.0a so MSI is lagging last with 0 releases with that version...
 
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Looks like they have released 7E49v1A95 now.
  • Description:
    - AGESA PI-1.3.0.0 updated.
  • - Implemented the anti-cheat mechanism.
  • - Improved PCIe-based devices compatibility under certain CPU or system combinations.

I probably won't have time to test it until this weekend though.
 
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7E49v1A95 appears to be stable enough for me, having tested it for a few hours. My best guess on the anti-cheat mechanism is that it is could be related to CVE-2025-14303. The MSI CVE only mentions Intel boards, but Gigabyte does reference AMD boards in their CVE version so it could be related. Or it could be as simple as better defaults for compliance with various vendors' anti-cheat frameworks. I'm not bothered enough to dig into it since the games I prefer don't use them.
 
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I applied the update less than an hour ago, don't see any difference to the previous version but it is too early to say.
The only strange thing that happened was that when I clicked Yes to confirm the update in M-Flash, the screen froze for more than a minute before the familiar screen with the update progress bar appeared. It has never happened before and probably it is not related to this particular version but just to make note.
 
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This article at Ars Technica states:
ASRock’s security bulletin about the issue says it affects Intel boards based on the 500-, 600-, 700-, and 800-series chipsets; MSI only lists the 600- and 700-series chipsets. Asus is also missing the 800-series, but says the vulnerability affects boards based on even older 400-series Intel chipsets; Gigabyte, meanwhile, covers 600-through-800-series Intel chipsets, but is also the only vendor to mention patches for AMD’s 600- and 800-series chipsets (any motherboard with an AM5 socket, in short).
Click to expand...

MSI states:
MSI acknowledges a recently discovered vulnerability, CVE-2025-14303, which impacts MSI motherboards with Intel 600 or 700 chipsets. Certain motherboard models are affected by a vulnerability identified as Protection Mechanism Failure.
Click to expand...

MSI states certain motherboards are affected and Ars Technica showing no unity among manufacturers making it hard to figure out which boards chipset combinations are involved. If hypothetically AMD is also affected on MSI boards we should be seeing an MSI Product Security Advisory in the upcoming days or weeks. It's trying to read the proverbial tea leaves. 🙃
 
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ericj159802e9 said:
This article at Ars Technica states:


MSI states:


MSI states certain motherboards are affected and Ars Technica showing no unity among manufacturers making it hard to figure out which boards chipset combinations are involved. If hypothetically AMD is also affected on MSI boards we should be seeing an MSI Product Security Advisory in the upcoming days or weeks. It's trying to read the proverbial tea leaves. 🙃
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With so much BIOS versions released recently for the different mobos I wouldn't be surprised if this "anti-cheat mechanism" is nothing more than a lazy copy-paste from the release notes for the Intel mobos.
 
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running it now, so far so good. Noticed if you set pbo in the ez section it greys it out from the amd advanced overclock menu. Setting it to auto lets you then go to that section and change pbo settings. No idea if that's known in prior versions or new with this one.
 
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sheni_re154702d9 said:
With so much BIOS versions released recently for the different mobos I wouldn't be surprised if this "anti-cheat mechanism" is nothing more than a lazy copy-paste from the release notes for the Intel mobos.
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It is for boards with AMD CPUs.

The answer is it is an update for TPM certificates. Some games want those to be installed.
badboy2k said:
more just A Simple Update to the Standard Keys When it first Came out the Keys the TPM used would have Been TPM 2.0 - 0 which are the Bas Keys and Since have been 2 Updates to it to Change them So A and B and the Newer ones most just call them Updated Keys but its more Easy if you Give them Letters to Know how many there have been so Far.
Click to expand...
 
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