HP desktop chassis power supply OEM manufacturers.

HP's power supply is generally a large Taiwanese OEM, much better than the Hangjia, generally: high efficiency, optical treasure, Delta and Quan Han , now Delta and Quan Han are doing retail. It's not easy to sell in the market. I now sell computers, there are a large number of HP original power supply, is the light treasure OEM. Super quiet, the quietest time at night can not be heard. Taiwan power supply is not comparable to the Aerojet. Only Taiwan power supply is generally only OEM, not retail, not good to buy. Power rankings: Delta, Lite-On, Comfort, full Han, high efficiency. And so on. The first thing you need to do is to get your hands on a new one, and then you'll be able to get your hands on a new one, and then you'll be able to get your hands on a new one.