Just an update:
The mobo was oos, so went for the more expensive MSI MAG Torpedo and an EK 360 AIO cooler.
Started the build on Saturday, and wasn't my day.
The build went well, all smooth as to be expected, until power on.
No display detected and no post.
After a couple of hours of checked and double checking things I removed one of the dimms (after reading a forum post about faulty memory causing a red cpu ez debug light on MSI boards) and voila, display...but then upon entering the bios the cpu temp was rocketing and the aio pump apparently not working.
Currently RMAing the cpu and mobo for testing, but it's looking to me like the board was faulty.
fingers crossed.