Zalman have a pretty solid reputation for low noise coolers, but not all of their heatsinks are created equal. For the final word on the Zalman CNPS-9700NT CPU cooler we turn to Frostytech.
"The Zalman CNPS9700NT heatsink follows in the footsteps of the popular CNPS9700 LED heatsink, and it's just as big as the latter. What sets the CNPS9700NT apart is a 100mm Pulse Width Modulation (PWM) compliant fan - making this heatsink a more attractive choice for Intel platforms than the pervious version and its manual fan speed controller. Oh, and did we mention it's chrome plated an evil Terminator-grey shade of silver? Blame nVidia for that one, personally we prefer our heatsinks in bare aluminum or copper."