Hi everyone, I have an intel NUC8i7HKN that was working perfectly. After hb0059 bios update the thunderbolt connection on windows stops. I reinstalled windows try different drivers , devices and nothing work. Please help thanks in advance.

[VDiaz]

windows 10 1909, 512 ssd 32gb ram. Thunderbolt is enable on bios. I tried all the security options, no luck.thanks

[LeonWaksman]

1. If you have installed the latest Thunderbolt DCH Driver ver. 58 https://downloadcenter.intel.com/download/28735/Thunderbolt-3-DCH-Driver-for-Windows-10-for-Intel-NUC?product=126141 , you will also may want to install Thunderbolt Control Center from the Microsoft Store https://www.microsoft.com/en-us/p/thunderbolt-control-center/9n6f0jv38ph1?activetab=pivot:overviewtab
2. You should also update the Thunderbolt Firmware (if not updated yet). Firmware Update Tool you may find here: https://downloadcenter.intel.com/download/28525/Thunderbolt-3-Controller-Firmware-Update-Tool-for-NUC8i7HNK-NUC8i7HVK?product=126141 . Please read the User Guide before using this tool.

Leon

[VDiaz]

LWAKSMAN thanks for your reply. I already did those steps, but nothing works. It looks like the TB controller is not enable but it is. However I installed the Mac OSX mini just for testing and in that OS it work with no problem. I'm now even more confuse :(

[LeonWaksman]

1. Just to be sure, did you installed Thunderbolt Control Center from the Microsoft Store https://www.microsoft.com/en-us/p/thunderbolt-control-center/9n6f0jv38ph1?activetab=pivot:overviewtab ?
2. There are two Thunderbolt drivers in the Download Center: DCH and Legacy. Which one you are using?

Leon

[VDiaz]

Hi Leon, Yes I use the thunderbolt control center if you see my screenshot is there where the controller does not show. I try both options the legacy that starts with 17.xx and the DCH that start with 14.x none of then work :( however it works on macOs for some reason.

[LeonWaksman]

On the attached to your post images I can see that you have installed driver version 1.41.648.4, dated 5/22/2019. However while I'm opening the inf file of the DCH driver I can see that the driver version is 04/08/2019,1.41.645.0. So, could be that you are not using the correct driver?

The latest driver DCH driver you may find here: https://downloadcenter.intel.com/download/28735/Thunderbolt-3-DCH-Driver-for-Windows-10-for-Intel-NUC?product=126141

Follow the How to install instruction on driver download page.

Leon

[n_scott_pearson]

One other thing you could try is reinstalling BIOS 58 using the BIOS Recovery process. After this completes, go into BIOS Setup (Visual BIOS) and carefully verify that the BIOS configuration is what you expect it to be.

...S

[VDiaz]

Hi n.scott.pearson, thanks for you help. I already went back to 58 and nothing same issue :( not sure what's going on.

[VDiaz]

Here is the bios configuration and the behavior of windows 10 1909 plus the behavior on MacOs. thanks for your help.

[VDiaz]

posted a file.

[VDiaz]

posted a file.

[MRoss5200]

Are you trying to plug in an eGPU made for the Mac into your HNK? If you are, that device is not supported at all on a Windows system. The Blackmagic eGPU is made specifically for the Mac only. Also, check the security settings in the BIOS for the Thunderbolt controller under the SECURITY tab. Make sure they are at the defaults.

Do you have any other Thunderbolt devices to test with, like a external HDD?

[MRoss5200]

I tried using an external 500GB TB3 SSD from Dell on my NUC8i7HVK with BIOS 0059. I tried it using the legacy Thunderbolt drivers in Win10 1903 (19H1).

That worked fine. Then I uninstalled the legacy drivers and installed the DCH drivers from the downloadcenter link provided previously.

That worked fine too. Not sure what your setup is, but seems to be working fine with my 500GB SSD TB3 device.