First, you will need one of our 1156 adapter sets, either BKT-CP022K or BKT-CP025K. The back plate and insulating pad will be used.
Next, drill out the space between LGA 775 and LGA 1366 holes on the original CPU-LN2 acetal top bracket. Use a 4mm (5/32") drill bit. Here is an illustration of these areas:


