I recently bought an Abit IC7 board together with some watercooling stuff and among them was the DTEK northbridge block. To my dismay, there were no holes to attach the block to. I studied the "wire loops" on the board on how i can attach this block. I came up with something crude and simple but somehow effective. Sorry, i dont know how to post pics here but you can see my installation on this site.......
http://www.pbase.com/plexon2/inbox
I have yet to test this setup but the grip of the hooks are solid and doesnt budge at all. My next step would be to reinforce the backside of the mobo where the wireloops are connected.
Cheers!