05-19-2010 07:38 AM
Well the absolute best way is to look at the nameplate of the power supply. Remove the side panel of the computer case, with the computer OFF. There should be a nameplate on the power supply that will tell just what is being asked. Most PS for that style/model are no more than 300 watts.
Please click "Accept As Solution" if my help has solved your problem. ----------}
This is a user supported forum. I am a volunteer and I do not work for HP.
05-19-2010 08:26 AM
One of the important numbers on the label is the 12 volt amperage along with the total wattage. Follow TheOldMan's advice.
HP e9280t, i7-960, 12GB, Vertex 3 120, ATI 4850
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
Custom i7-4770k, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-3770k, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
Windows 7/8 UEFI/Legacy mode, MBR/GPT