MSI MPG X670E CARBON WIFI - PCIe slot no longer works after BIOS update

ndepoe159002db

ndepoe159002db

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Nov 11, 2022
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20
Hi,

At the launch of AM5 I purchased an MSI MPG X670E CARBON WIFI for myself along with a Ryzen 7 7700X and 2x 32 GB DDR5-5600 RAM. For the first few months it has been running pretty smoothly with no major issues.

However last weekend I decided to update the BIOS to the latest version (7D70v12) and while it offers some nice quality-of-life improvements, it did also introduce one major issue for me. In PCIe slots 2 and 3, I have installed two capture cards: an Elgato Game Capture 4K60 Pro MK.2 and an Elgato Game Capture HD60 Pro, respectively. I use these side-by-side for different purposes. After the BIOS update, the HD60 Pro capture card in the PCI_E3 slot from the Chipset is no longer being detected by Windows. There are no errors, no unknown devices in Device Manager, it's like the card isn't there at all.

I've already tried various things: updating drivers for the motherboard including the Chipset drivers, installing the latest drivers and software for the capture cards, updating Windows 10 to the latest version and installing all optional updates. I also reset the BIOS settings to the defaults and checked with that. None of those things solved the problem. At this point I'm very sure it's not a software or settings problem.

To eliminate the possibility of a failure with the capture card itself, I also swapped around the cards around so that the HD60 Pro is in the PCI_E2 slot. And sure enough: now the HD60 Pro is being detected again while the 4K60 Pro card is no longer visible in Windows. So I'm very certain that the problem is with the PCI_E3 slot (the only slot to come from the Chipset and not from the CPU) and it cannot be a coincidence that the problem appeared immediately after updating the BIOS. My guess is that this BIOS version introduced a bug in the Chipset firmware that causes the attached PCIe slot to fail initialization.

I would like to downgrade the BIOS again to the version that came preinstalled on the motherboard (version 110) just to see if that solves the problem, but that version does not appear to be available for download anywhere.

P.S.: I also noticed that after the BIOS update, the Sleep option disappeared in Windows. This bug is already covered and acknowledged in a different thread on this forum and I've confirmed that disabling A-XMP in the BIOS makes the Sleep option reappear, so this seems to be unrelated to my PCIe slot issue described above.
 
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lostking20015bf02e6 said:
You are trying to boot 128GB at 6000. I have been trying this for months and never really worked (or stable).

Try 4800 first, then 5200, 5600.

Usually, it would just get stuck at memory training. It is very interesting that you can actually get in the bios afterward. Maybe, the overclock failure recovery function is in play. This function has never worked in all the previous bios.
Click to expand...
Yep Recover seems to work now have had it pop up twice when doing OC settings is default one try before reset
 
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lostking20015bf02e6 said:
You are trying to boot 128GB at 6000. I have been trying this for months and never really worked (or stable).

Try 4800 first, then 5200, 5600.

Usually, it would just get stuck at memory training. It is very interesting that you can actually get in the bios afterward. Maybe, the overclock failure recovery function is in play. This function has never worked in all the previous bios.
Click to expand...
Oh..it seems like the recovery function works great but in previous bios it didn't work lol...Very thanks for sharing these knowledge to me..that's helpful.
 
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oleg.shehte158202db said:
I can report that v175 BIOS resolved the PCI_E3 issue for me.
Click to expand...
minions-thumbs-up.gif
 
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bogue200158b02de said:
@

Could i also get this bios please ?
thanks!
Click to expand...
Bios has now been placed on the Moderator File Share Site
All files on this site are Suppied by MSI

MSI Tool Summary - Motherboard

BIOS Update is not mandatory. We recommend to NOT do BIOS update unless you notice issues that could possibly be fixed by BIOS update.
sites.google.com sites.google.com
1686449055661.png
 
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skgie15da02ec said:
Could you share the v176 bios
Click to expand...


Bios has now been placed on the Moderator File Share Site
All files on this site are Suppied by MSI
MSI Tool Summary - Motherboard
BIOS Update is not mandatory. We recommend to NOT do BIOS update unless you notice issues that could possibly be fixed by BIOS update.
sites.google.com
sites.google.com

1686449055661.png
 
Last edited:
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niqingliang20012f202ae said:
the 176 still have problem for rebooting.
after rebooting, the led is always keep 00, system can't start
Click to expand...

Mine does it too, won't reboot and won't wake up from sleep without getting stuck on code 00. I've just been patiently waiting for a working or non beta bios for over 6 months now, this reboot issue has plagued me since at least v15x. I've pretty much put this build on hold because of that. I also have some funky once in a while USB problems, RAID issues with AMD's RAIDxpert software, sound not working sometimes on boot up. And I had an initially bad 7900x CPU to start things off on the wrong foot... But I'm hopeful that the next BIOS drop will make major improvements in quality of life with this system.
 
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