i just bought new motherboard asus A7M266 and AMD thunderbird 1.4 ghz 266mhz/266k - OEM it has 4 rubber pads on the cpu , im placeing the SWIFTECH MC-462-A heatsink and fan , i also got ARCTIC SILVER 2 compound , my question is how much compound do i putt on , im guessing the rubber pads stay , i dont want to do this wrong, thanks