Mystery solved... maybe.
Kept getting the wrong speed showing up (I'm overclocking) so added the real speed to the processor string.
Using shael's post...
<string>4.7 GHz Intel Core i7 - 4790K</string>
To prevent the standard speed cropping up, change the following...
Got the same board but I can't get the front two USB3 ports running at super speed.
Are your ports running correctly?
Could be my SMBIOS is wrong - I'm using a mac mini one. I see you are using early 2008 mac pro.
Any other pitfalls setting this board up?
I noticed that disabling Internal CPU...