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MattTinNC
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Registered: ‎02-21-2018
Location: US
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Message 1 of 12

T470p Yellow bang - PCIe Controller x16

I recently noticed that the PCIe Controller (x16) has a yellow bang next to it in Device Manager. It doesn't appear to interfere with normal daily operations, but last week the GeForce 940mx also did the same thing. I fixed that with the built-in Troubleshooter for Windows 10 (it restored the driver), however that doesn't work for this device. As for the properties of the device when I open it, it displays "This device cannot start. (Code 10)" error message.

 

Has anyone else seen this? I don't recall it being an issue until after the last BIOS update (to v1.20), but I could be wrong as to how and when it manifested. Hopefully there are others that have seen this besides me!

Retired Support Specialist
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Message 2 of 12

Re: T470p Yellow bang - PCIe Controller x16

Hi Matt,


Welcome to Lenovo Community! And happy to have you here.

 

Just right click on that choose Update Driver Software>Then Browse my computer...>Let me pick... and then select the Intel(R) Xeon(R) E3 - 1200/1500 v5/6th Gen Intel(R) Core(TM) PCIe Controller (x16) - 1901 and click on next to update the drivers.

 

I hope the above information helped you.

Please feel free to post in Lenovo Community Forums if you have any further queries!

 

Regards,
Prabhansh
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MattTinNC
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Message 3 of 12

Re: T470p Yellow bang - PCIe Controller x16

Hi Prabhansh,

 

I've actually tried that solution several times and it does not work. Immediately after the driver is loaded, I get a Code 10 error still. The problem, from the little bit of research I've done, appears to be software-related. I had thought maybe something wrong with the motherboard (a little over a year old now), but probably not the issue here.

 

Not sure what else to do with this. I've seen people with other types of computers have this issue, reload the OS but the problem always comes back. Has anyone else seen this?

 

Thanks!

Matt

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Message 4 of 12

Re: T470p Yellow bang - PCIe Controller x16

Hi Matt, 

 

Try installing the driver from Microsoft Update catalog -Intel(R) Xeon(R) E3 - 1200-1500 v5-6th Gen Intel(R) Core(TM) PCIe Controller (x16) - 1901 and let me know if it helps. 

 

Prabhansh

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ThinkPad T440p| Intel® Core™ i5-4300M| 2.6 GHz Dual core| 8GB
ebec
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Message 5 of 12

Re: T470p Yellow bang - PCIe Controller x16

I have the same problem. I updated the bios to 1.2 and after that I tried to update the graphics drivers. The version number did not change so I uninstalled the old driver and installed the new driver without problems. I’m not sure when the exclamation mark showed up but I believe it was during the update. None of the suggestions above solve the problem

Retired Support Specialist
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Message 6 of 12

Re: T470p Yellow bang - PCIe Controller x16


@ebec wrote:

I have the same problem. I updated the bios to 1.2 and after that I tried to update the graphics drivers. The version number did not change so I uninstalled the old driver and installed the new driver without problems. I’m not sure when the exclamation mark showed up but I believe it was during the update. None of the suggestions above solve the problem


Hi ebec,


Welcome to Lenovo Community! And happy to have you here.

 

May I know how you have tried to install the .cab file which is linked in my previous reply.

 

Prabhansh

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ebec
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Message 7 of 12

Re: T470p Yellow bang - PCIe Controller x16

I extracted the cab file to a new folder and opened device manager, right clicked the problematic device and chose update driver/browse my computer and chose the folder with the extracted files. I also tried uninstalling and delete drivers and than install the new driver. It always end up with “Windows encountered a problem installing the drivers for your device” This device cannot start (Code 10)

caodaf
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Message 8 of 12

Re: T470p Yellow bang - PCIe Controller x16

I have same problem after update BIOS to version 1.20,when rollback to version 1.19,the yellow bang disappeared.

MattTinNC
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Message 9 of 12

Re: T470p Yellow bang - PCIe Controller x16

I'd say this probably isn't an isolated issue then. It seems like Lenovo may have rushed out a BIOS update that was in response to the Spectre/Meltdown issues that were reported:

 

From the 1.20 BIOS release notes:

<12>
- [Important] Update Intel Micro Code to fix security issues.
- (Fix) Fixed showing low wattage message issue during post when use Airplane mode.

 I would be willing to bet that something else was changed or that the other fix might have caused the issue. Outside of that, it could be that something else was tweaked that isn't in the release notes. It is surprising that this issue wasn't caught in regression testing for the BIOS that should have been done before its release.

 

Prabhansh,

 

Is there a process to bring up this issue with the BIOS engineering team to have them take a look at it? It's been some years since I worked for Lenovo and things have definitely changed in terms of how things are reported I'm sure, but I would think there is a process. Something tells me that since the BIOS upgrade caused the problem, that needs to be where the solution for it will be.

HenryHo
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Message 10 of 12

Re: T470p Yellow bang - PCIe Controller x16

I have same problem after update BIOS to version 1.20, so i waiting for version 1.21.

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