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

[ndepoe159002db]

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.

 

[guigamuc157602db]

If you update the Bios you need to set it all back up again
it is a right pane as you can not load your saved setting from the previous bios

I found the issue. I don't know how but two HDDs connected to an external dock got bricked. If I remove the HDD dock from the computer I can boot into Windows, however, the files in both external backup drives are not accessible and they appear as "raw" in Disk Management tool.

 

[guigamuc157602db]

@Alan J T do you know why I can't disable the Ryzen 7000 integrated graphics even when disabling at bios level?

Using BIOS 7D70v1G1 and even though I've disabled the iGPU it still shows up in windows

 

[Alan J T]

@Alan J T do you know why I can't disable the Ryzen 7000 integrated graphics even when disabling at bios level?

Using BIOS 7D70v1G1 and even though I've disabled the iGPU it still shows up in windows

Yes there is a bug in the Bios MSI has been made aware and it will be fixed in the next Bios update
Several AMD 600 Series Motherboards were affected.

This Bios has the fix for the iGpu not being disabled

E7D70AMS.1G3

drive.google.com

 

[msi.champion03159802e0]

I read a few pages but not all 39... did the PCIE slot 3 broken ever supposedly get fixed? because I just bought and returned 2 x670e tomahawk boards that had the same issue, though it was weirdly intermittent for one card. I tested 3 cards, one worked once in a while but mostly it was like it wasn't there(asus 10g nic), one card showed up but locked up windows if you tried to use it(tplink wifi card), and the last one(Avermedia LIVE GAMER HD) wouldn't boot past passed ram training (orange light) with card inserted in 3rd PCIE slot. This was all with the latest release and beta bioses installed. All cards work perfectly in any other slot and other motherboards (both intel). My solution was to buy an Asus X670e which had no such issues. Just an FYI. Kind of a let down to have such a major issue broken for a year and a 1/2. I was hoping to try someone other than Asus this time around... maybe I'll try asrock next time.

P.S. With the 10g nic in third slot and latest bios it wasn't working, then I flashed to version 110 and it worked, then flashed back to latest and broke again. Other 2 wouldn't work on any bios.

 

[jaba1337]

I read a few pages but not all 39... did the PCIE slot 3 broken ever supposedly get fixed? because I just bought and returned 2 x670e tomahawk boards that had the same issue, though it was weirdly intermittent for one card. I tested 3 cards, one worked once in a while but mostly it was like it wasn't there(asus 10g nic), one card showed up but locked up windows if you tried to use it(tplink wifi card), and the last one(Avermedia LIVE GAMER HD) wouldn't boot past passed ram training (orange light) with card inserted in 3rd PCIE slot. This was all with the latest release and beta bioses installed. All cards work perfectly in any other slot and other motherboards (both intel). My solution was to buy an Asus X670e which had no such issues. Just an FYI. Kind of a let down to have such a major issue broken for a year and a 1/2. I was hoping to try someone other than Asus this time around... maybe I'll try asrock next time.

P.S. With the 10g nic in third slot and latest bios it wasn't working, then I flashed to version 110 and it worked, then flashed back to latest and broke again. Other 2 wouldn't work on any bios.

I've been running BIOS 7D70v186(Beta version), everything works for me, system boots quickly and is stable.

 

[Alan J T]

With the 10g nic in third slot and latest bios it wasn't working, then I flashed to version 110 and it worked, then flashed back to latest and broke again. Other 2 wouldn't work on any bios

Yes teh Tomahawk has been a bit funny with some PCIE cards Like Capture cards and some others
a reboot seems to cause it to be detected in some cases

 

[pctechmc]

Did this ever get resolved for x670e Carbon Wifi Motherboards?

 

[pctechmc]

Yes teh Tomahawk has been a bit funny with some PCIE cards Like Capture cards and some others
a reboot seems to cause it to be detected in some cases

This is happening to me on my x870e Carbon wifi - wont work from a cold bootup but after several restarts my soundcard works, latest x870e Carbon Wifi bios 10/25/24.
I pm'd you about my issue and also the link to another thread where a user is also complaining about the same issue with the exact same sound card.

 

[pctechmc]

Yes teh Tomahawk has been a bit funny with some PCIE cards Like Capture cards and some others
a reboot seems to cause it to be detected in some cases

This is upsetting as this is still an issue with x870e Carbon Wifi motherboard and still a problem with PCI_E3 not working with certain pcie devices.
I'm returning mine today.