[NUC] Troubleshooting Thunderbolt™ Issues on NUC

Install the latest Thunderbolt™ driver for your NUC model from Download Center.

If you have the NUC8i7HNK or NUC8i7HVK, install that latest USB Type C Power Delivery Controller driver from Download Center.

Update to the latest BIOS version on the NUC.

Check the Thunderbolt option in BIOS:

1. Press F2 during boot to enter BIOS Setup.
2. Go to Advanced > Devices > Onboard Devices.
3. Check that the Thunderbolt Controller is enabled.
4. Press F10 to save and exit BIOS Setup.

Use a certified Thunderbolt™ 3 cable. The length of the cable can also be a factor. Try one that's 60 cm or shorter.

Update the Thunderbolt firmware on the NUC.

Try a different Thunderbolt cable.

If you're using a Thunderbolt adapter (for example, to convert Thunderbolt from the NUC to DisplayPort on a television):

• Try a different adapter.
• Instead of using an adapter, try a cable that provides the correct input/output for your display.

Check BIOS Setup for primary and secondary display settings:

1. Press F2 during boot to enter BIOS Setup.
2. Go to Advanced > Devices > Video.
3. Set IGD Primary Video Port to the device you want to be primary.
4. Set IGD Secondary Video Port to the device you want to be secondary.
5. Press F10 to save and exit BIOS Setup.

Additional steps:

1. Connect one monitor using the second HDMI port on the NUC.
2. Connect the other monitor to the Thunderbolt/DP to the NUC and simply use the DisplayPort input on the monitor.

Change the Windows power management setting for the Thunderbolt controller:

1. Press the Windows key and X.
2. Select Device Manager.
3. Expand the System devices section.
4. Right-click the Thunderbolt(TM) Controller and select Properties.
5. On the Power Management tab, uncheck the box for Allow the computer to turn off this device to save power.
6. Click OK.
7. Close Device Manager.