Have the NT at very short notice for a defective 350W NT ordered as a spare and let me blinded by the price. The power supply was delivered with no frills and it works well but the fan noise is absolutely not. The price no Quiet of the Year Award is expected, too, but the thing is just too loud. Highly disturbing noise which is already highly regulated at the start with the fan speed. However, to replace a 350W 500W which should be considered very soft - but this is not so, it sounds more like to hairdryer. Who buys cheap - always buys twice ;-)