i have a corsair carbide 500r case with msi z87-gd65 motherboard ...
will the h105 fit in my case without touching the motherboard or leaving the top of the case open ??
Unfortunately not; from the corsair site:
"Compatible Corsair Liquid Coolers
H55, H60, H75, H80I, H90, H100i, H110"
The radiator is just too thick it seems. A H100 or H110 would be a good alternative though.
- click the 'tech specs' tab)