Here's the latest. I was testing the RGB distribution PCB's compatibility with the Aorus motherboard RBG output. Removing the arduino controller and running the MOSFETs directly from the motherboard seemed to work, but the colours were all coming out as the opposite! This is because the signals were being inverted by the MOSFETs, so I tried driving the LEDs directly from the motherboard and it fixed the issue although the red was a little on the orange side.
Looking at the scope signal and taking a very low exposure picture of the LED I could tell the green LED was still slightly on when the motherboard thought it was off.
An additional pull up to the green LED driver line fixed the problem and the red was looking red again. If you compare the two pictures of the LED you can see in this one there is only one die illuminated, the red. As opposed to above where the green is very slightly on as well.
Also added a side mounted connector for the motherboard cable.
Thanks again to Gelid for the support!
Looking at the scope signal and taking a very low exposure picture of the LED I could tell the green LED was still slightly on when the motherboard thought it was off.
An additional pull up to the green LED driver line fixed the problem and the red was looking red again. If you compare the two pictures of the LED you can see in this one there is only one die illuminated, the red. As opposed to above where the green is very slightly on as well.
Also added a side mounted connector for the motherboard cable.
Thanks again to Gelid for the support!