Ouch not good! Hearing a lot of stories that are putting me off putting the EK Ti blocks on. Even though I know I'll be reet. I've only ever borked one thing and that was an old Abit AMD board. Screw driver slipped on CPU bracket and I carved up the board lol.
I think EK waterblocks are fine on GPUs (I will post when I have done my 290Xs) but waterblocks on mobos is not such a good idea. I was warned off doing a watercooled RIVE by 8 Pack (but did it anyway) but found it did not perform any better than the normal air cooled version and possibly worse. I will find out for sure when I run my 3970X in an air cooled RIVE BE. The other thing that really makes a difference with high overclocks on a RIVE is to cool the back of the mobo with a fan (or in my case put the PC in front of an open window with the back panel off in winter.)