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

Joined
Nov 11, 2022
Messages
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.
 
Hi,

i wanna test this BIOS aswell,
my config
MSI Carbon MPG X670E
AMD RYZEN 7 7800x3D
MSI RTX 4080 Suprim
Corsair Vengance DDR 5 6000mhz CL 30 EXPO
Soundblaster AE-7 (PCI_3 Slot)

thx for your time and effort!!
best regards!!
 
Hi,

i wanna test this BIOS aswell,
my config
MSI Carbon MPG X670E
AMD RYZEN 7 7800x3D
MSI RTX 4080 Suprim
Corsair Vengance DDR 5 6000mhz CL 30 EXPO
Soundblaster AE-7 (PCI_3 Slot)

thx for your time and effort!!
best regards!!
Check PM
 
Hi All

I Have been giving new Bios to fix the PCIE 3 Problem

BIOS 7D70v175
As well as a couple of other fixed SOS implemented
The CPU Fan fails when selecting the TPM switch in easy mode is fixed


As per usual if you wish to try this bios Please let me know and will PM you the link.
View attachment 173074

Hello, Could you please send me version BIOS 7D70v175 when you have a chance. Thank You
 
Hi All

I Have been giving new Bios to fix the PCIE 3 Problem

BIOS 7D70v175
As well as a couple of other fixed SOS implemented
The CPU Fan fails when selecting the TPM switch in easy mode is fixed


As per usual if you wish to try this bios Please let me know and will PM you the link.
View attachment 173074

Hi Alan,

I would like to test this new BIOS to see if my Intel D5-P5520 7.68TB U.2 SSD is finally working in PCIe 3 slot.

Tnx already!
 
Hello;

I just bought x670e carbon and i updated bios 174. Did not try yet.
The question is: Can i use my 1660Ti with lastest BIOS or sohuld i install 175 BIOS?
If i need 175 BIOS for 1660Ti, can you send me 175 BIOS please? @Alan J T
 
Hello;

I just bought x670e carbon and i updated bios 174. Did not try yet.
The question is: Can i use my 1660Ti with lastest BIOS or sohuld i install 175 BIOS?
If i need 175 BIOS for 1660Ti, can you send me 175 BIOS please? @Alan J T
Is only needed if you need to use PCIE_3 and it is not working with the device in it, PCIE_1 and Pcie_2 are not affected by the Bug nor is the rest of the system.
 
Back
Top