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

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Nov 11, 2022
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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.
 
with the 175 bios my PCIe 3 device is working again but I can´t find my PCIe 2 device now.
Is it maybe not possible to have 3 PCIe devices while using M2_3 and M2_4?
NA I have all slots populated s well as all M,2 Populated all show up check the PCIE_E setting in bios for Slot one and two may need to set it to PCIE 3_Mode instead of auto
1685203305852.png
 
NA I have all slots populated s well as all M,2 Populated all show up check the PCIE_E setting in bios for Slot one and two may need to set it to PCIE 3_Mode instead of auto
View attachment 173231
High Alan,
I've been using all of the Biosses up to 174. Since 124 PCIe_3 is working OKish. There's been some powerlosses to my Intel AX211 nic, but not regularly. Can I have that 175 to add to the collection, pls ? TIA
 
High Alan,
I've been using all of the Biosses up to 174. Since 124 PCIe_3 is working OKish. There's been some powerlosses to my Intel AX211 nic, but not regularly. Can I have that 175 to add to the collection, pls ? TIA
Check PM
 
Hi @Alan J T
I have a question. There is a delay when I connect the Dualsense device to the computer via Bluetooth. But if I disable the Bluetooth driver and connect it with the external dongle, there is no delay. Why could this be the cause? X670e carbon with lastes bios and lastes driver updates
 
Hi @Alan J T
I have a question. There is a delay when I connect the Dualsense device to the computer via Bluetooth. But if I disable the Bluetooth driver and connect it with the external dongle, there is no delay. Why could this be the cause? X670e carbon with lastes bios and lastes driver updates
IS common and why I tend to not use BT for Audio on PC for Gaming I notice a difference with Xbox Controller on BT or Dongle BT has a very slight lag when Dongle does not but the GuliKit Kingkong Pro Controller is BT only and does not seem to get the same Lag as the Xbox one dose
 
IS common and why I tend to not use BT for Audio on PC for Gaming I notice a difference with Xbox Controller on BT or Dongle BT has a very slight lag when Dongle does not but the GuliKit Kingkong Pro Controller is BT only and does not seem to get the same Lag as the Xbox one dose
Thanks for helping
 
Hi everyone !! Hope all is doin well. I am new to the MSI club. Got my mobo a few days ago. I haven't turned Expo on yet, due to the recent issues it's been facing.
I am currently on the beta BIOS -172. I was considering the update to 174 but I heard it causes some issue's with fan control.
@Alan J T
Hi Alan, Hope you are doing well.
According to this thread, it appears that there maybe another bios after the 174 but it isn't available yet on the website. I was wondering if I can have the 175 update too ?if you don't mind. Thanks I advance !! ^^
 
Hi everyone !! Hope all is doin well. I am new to the MSI club. Got my mobo a few days ago. I haven't turned Expo on yet, due to the recent issues it's been facing.
I am currently on the beta BIOS -172. I was considering the update to 174 but I heard it causes some issue's with fan control.
@Alan J T
Hi Alan, Hope you are doing well.
According to this thread, it appears that there maybe another bios after the 174 but it isn't available yet on the website. I was wondering if I can have the 175 update too ?if you don't mind. Thanks I advance !! ^^
Yep Check PM
 
Hi Guys

If you disable IGPU in BIOS can you check in the device manager to see if it is Disabled
I disable Network and IGPU but both are showing in Device manager BIOS 7D70v175
1685612722999.png
 
BTW, as 7D70v174, the Bluetooth device shows up even I disable both WiFi and Bluetooth in the bios.
YA not sure about that but It was mentioned it is either both on or both off will have to double-check.

But it is a Beta Bios so may well have a few quirks to iron out yet
 
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