re the mhz iisi re methods for attaching heat sink to processor go to radio shack and buy a tube of heat sink compound it comes in a little blue and white tube with a black screw on cap at radio shack it s catalog number it s a mix of silicone and zinc oxide and conducts heat very well plus it s tacky usually you would smear a bit between the chip and the sink and then bolt or clamp the sink down but if you don t move your mac gravity and the stickiness of the goo should be more than suffcient to hold things in place just make sure you remember it s in there in case you tilt your mac and jar it hard enough to shake it loose you wouldn t want a loose piece of metal running around inside your mac
