yep i got a whole bunch od di-electric grease and coating for the board.. I am not drilling a hole in the waterblock. I am drilling it in cold plate. Cold plate is in between the cpu and peltier. all it is, is just a big hunk of metal.
If i put the peltier on the same loop as the gfx cards, wonder how hot it will make them,, even though i have 2 triple rads