The manual for this motherboard can be seen here and has the full pinout of the header.
With that it's very easy to look up what each colored wire on the USB line does BUT when wired up as you would expect it did not work. The flash drive would light up and then device manager would say "unknown device".
That's where the suggestion of @GreyWolf30 came in. HP did indeed wire up the +/- data lines backwards. Upon flipping the Green & White wires the front port now worked!
Side note, on the pinout there are two Grounds, one at pin 1 and another at pin 6. I used the top pin right next to the power pin and it all worked great.
Hope this helps someone and enjoy your whips dudes!