Summary: Zalman's CNPS14X CPU cooler was, while not the quietest in my tests, far from noisy, but its low noise levels are perhaps its best feature. Many users want quiet but powerful systems, and the CNPS14X certainly helps fill that role by being a quiet CPU cooler.
Pros: Quiet, Option for up to three fans, Performance with three fans is good, Quality thermal grease included
Cons: Price to performance is lackluster, Troublesome to install, Lacks extra fans, Installation manual unclear
Conclusion: This cooler performed very well, the CNPS14X is really something to look into if you can afford it. The pricetag is not horrible since you can pick it up for 55$ at Newegg when this review is written.
Summary: In any event, the stock Zalman CNPS14X heatsink comes with a single 120mm PWM fan nestled away in the center of two aluminum fin towers. The 120mm fan runs at 1350-900RPM and the two towers are connected to a copper base plate by no less than six, 6mm diameter copper heatpipes.
Conclusion: The cooling capabilities of the CNPS14X may have left a little to be desired, but in the noise department it didn't disappoint. It's definitely one of the quieter air coolers we've had on test for a while thanks to its single 140mm fan, and coolers marketed towards those looking for quiet computing...