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HP Pavilion p6280t power supply upgrade?

anyone know compatible power supplies for the HP Pavilion p6280t. i have tried 2 power supplies that i have and they dont work with this pc. anyone who has this pc and has upgraded it please say what u put in it. its a small pc. the power supply cant be longer than 6" accross and 4 inches down and maybe 6.5 from front to back thx

Public Comments

1. All ATX12 power supplies meet the official dimensions of 150 x 140 x 86 mm ( 6 x 5.6 x 3.4 in), so you shouldn't have any trouble, ASSUMING the original power supply was a standard size (it's very tough to get details on name brand computer components). The standard power supply is only 300W, so I can see why you'd need to upgrade it (for a new video card is my guess). The microATX small tower is a pretty standard size, used by many manufacturers. Just make sure you plug in BOTH the 24 pin and 4 pin connectors to the motherboard when replacing the power supply, or it won't work.