The replacement for Hp Compaq Nc6220 laptop cpu fan features efficient heat dissipation and low noise, perfect design for high compatibility and excellent component. 100% brand new, tested to be 100% working properly before shipping. The all laptop cpu fans have 6 months warranty and 30 days money back guarantee. If your cpu cooling fan has become very noisy and started making a grinding sound, apparently it’s time to replace the fan with a new one.