Unfortunately the iCUE software doesn't let me control my Arctic Freezer and therefore it won't give me access to the System fans, which is a bummer!
I'm guessing the A-RGB protocol includes an identifier signal to the software?
I've just had a fun day getting MSI Center to work again, as I found yet another bug with the 'System Diagnosis' feature. Countless uninstalls re-installs later I've got it working again and adding only the 2 features I need this time rather than trying to be greedy and hope it all magically works.
Sorry MSI, you make fantastic boards, but your Software and User Manuals are a major let down. (In case they ever read this)
The iCUE software wasn't a waste of time though, I didn't realise it was possible to control/monitor the Corsair RAM I have, and I can change the RGB on my K95 keyboard so it will still have it's uses.