GA-MA790GP-UD4H dead ports

Just BIOS settings. They can usually be turned on or off there.

Thanks.

I am now sure it is a defective board. RMA forthcoming.

This is my first Gigabyte board in many years, so thought it may be something I had missed during the build.

NP, I can see a PSU being causing similar problems, but it would be more than just those ports, and they would probably partially work.

Yes, I actually did use two different PSU, so that sealed it.