HP Thunderbolt-3 card issues in HP Z8

[arikkat]

Hi,

I've got 2 HP Thunderbolt-3 PCIe cards that are both posting errors in my HP Z8 workstation. Upon startup I see this error msg indicated for the TB card: "usb type-c controller firmware update failed". I have the choice to continue booting or rebooting and trying the update again. Selecting the second option brings me to the same message. If I continue booting into Windows the card is not seen in Windows even after installing the TB driver. The card is not seen by the HP TB3 firmware update either. I have the card installed in slot1, the topmost slot, with the GPIO cable connecting to the TB3 header on the mainboard. I don't have the Displayport cables connected to my GPU. I also have the premium I/O module with two USB-C ports installed which has never worked correctly (errors in device manager). Is there some incompatibility between the premium I/O module and the TB3 AIC? Any help troubleshooting appreciated. TIA

[arikkat]

Update: I've found a BIOS setting which disables the USB-C firmware update message. However the TB card is still not detected in Win10 after installing the sp135935 driver.

[The_zee]

And what is that setting? 

[SDH]

Agree... What is that BIOS discovery you made?

[The_zee]

Found it.
BIOS -> Advanced -> Port Options -> uncheck “USB Type-C  controller firmware update “ at the very bottom of the page. 

 

[BeardedOwl]

I have the same issue.  Just added the card and error on boot about not being able to update the firmware.   I do not have the premium io but on another system I did and had to update the premium io firmware itself but that system doesn't have a thunderbolt card.