You just have to adjust the little pegs on the mounting bracket to fit a slightly bigger layout. If you bought the cooler before 1155 was released you might have to contact Zalman and get a new set of mounting brackets.
I was using it with an intel quad core LGA 775. Now, I've upgraded to the LGA 1155 Core i5. I would like to still use this heatsink, and it claims it's compatible, however, it won't fit into the sockets of my ASUS Z77 board.
Is there an adapter that I need to find to use this properly with this socket? (Keep in mind that I bought this back in '09 when 775 was the norm.)