Figured I would take this out of the build channel.
I was finally able to boot and install windows in my new A4H2O but it seems to only work if I have a stick of RAM in only the B slot.
At first when I was diagnosing issues with this build my monitor would report ‘no signal’ and go into sleep mode. When both sticks are installed the monitor does the same.
Not sure what to do other than exchange the motherboard.
Ideas and help are both very much appreciated.