NUC 8i5BEK with dual monitors won't boot after BIOS upgrade

[TSCSU]

Hi, 

I just updated the BIOS on my NUC 8i5 from 0088 to 0089.  When I boot it up now, I get a BSOD (DMA Violation) almost immediately once Windows 10 tries to load.  There is a dual monitor setup (Dell U2412M's) with one plugged in to the HDMI port and the other into the USB-C port via USB-C to DVI adapter.  If i unplug the USB-C adapter, the system will boot to the other monitor just fine.  Once Windows is up and running, I can plug the USB-C monitor in, and everything works normally.  However, when I try to boot again with the USB-C monitor plugged-in, I get the BSOD with DMA violation error.

I have tried swapping in a brand new DVI to USB-C adapter of a different brand, and it still blue screens.  The graphics driver is 27.20.100.8681 which the Intel Graphics Command Center says is up to date.  Both monitors are configured for 1920x1200 resolution, and I have updated the monitor driver to the latest version (albeit 2015). 

Do you have any idea what the problem might be, or what I can try next?

Thank-you!

[TSCSU]

Ok, I have an update to the issue.  If I disable the Thunderbolt controller in BIOS, it will boot normally.  As another step, I tried disabling the thunderbolt driver to keep it from loading at startup, then re-enabling the tbolt controller in BIOS.  That didn't work, so I re-enabled the driver and disabled the controller. 

Is there another driver that is keeping this from booting properly? 

We'd like to get a solution to this, because we have a few dozen 8i5's that are do the same thing if we update the BIOS to 0089.

Tom

[LeonWaksman]

Please verify the following:

1. The Thunderbolt™ 3 Controller Firmware is updated. 

2. The latest  DCH-compliant Thunderbolt™ bus driver is installed. 

3. The HDMI Firmware is updated as well. 

Leon

[TSCSU]

Thank-you for including the links to the updates.  It made life easier.

I ran the HDMI FW update and installed the TB driver.  When I try to update the TB Firmware, I get the following error:

                    "Error: 0x227 SDK_NO_Driver Thunderbolt(TM) UWD Software is not installed. 

                    Please install the Thundbolt(TM) UWD software and run the tool again."

The TB controller is enabled in BIOS.  I have an Android phone plugged into the Thunderbolt connection on the NUC, but I don't know if that qualifies as a true Thunderbolt device as indicated in the FW update instructions.

What can I try next to resolve this?

Thank-you for your help

Tom

[LeonWaksman]

Hello Tom,

I've tested TB firmware update on my NUC (with mobile connected) and got the same error as you. To my regret I don't have real TB device and right now can't help you more.  Please wait until Monday, for help from Intel Agent  and/or from other Community Member.

Leon

[TSCSU]

Thank-you for your help, Leon.  You went above and beyond!

The issue persists because I haven't been able to update the TB Bios.  I would appreciate it if someone from Intel could assist with this.

Tom

[n_scott_pearson]

What happens if you run with the BIOS default settings?

...S

[TSCSU]

Scott -

I did finally set the BIOS to default settings, and the problem persists.  The only way it will boot into Windows is if I either disable the TB controller in the BIOS or unplug whatever is plugged in to the TB port.   If I do the latter, once Windows has started, i can plug the TB cable back in and both monitors work just fine.

Thanks

Tom

[KathCaffrey]

Hi.

I have the same problem. My additional monitor worked, then it just stopped today. I did all update/delete/refresh with drivers and nothing works. The monitor works with another PC.  Dowloaded the Intel system support utility for  windows, as was suggested in one of the posts. Not sure what to do with the file though. Means nothing to  me, as I am definitely not computer saavy.

Can  someone pls help?

Kath

[n_scott_pearson]

Have you tried (using the BIOS Recovery process) downgrading (back) to BIOS 88? Did this make the problem go away?

...S

[TSCSU]

I had the same thought.  Perhaps if I downgraded, I could try the TB firmware update again to see if that would take.    I'm reluctant to downgrade though - I am concerned about bricking the unit. 

So, I created a case with Intel support.  Their engineers will be taking a look at the problem.  If they give me the go ahead, I'll try the downgrade. 

I'll post whatever the results are.

Tom

[KathCaffrey]

My problem has been solved. Thank you.

[TSCSU]

Can you share what you did to resolve the issue?

Thanks

Tom