Hi, i attached photo of psu label on the 280 watt presently in the hp...the second photo is a pic of the specs from manual of the 460 watt spare atx non modular psu....i could possibly use that with that refenced adapter from ebay?...i don't get how the power from the individual voltage rails add up to 460 watt...for instance the 12v x 33 (amps) gives you 396 watts, but combined power for 3.3 and 5 volt is 200 watt. This adds up to 596 watts, no?. Also refurbisher acknowledged their mistake and will partially refund me $20 (laughable) OR give me 100% refund with returned computer (shipping prepaid by them)...not sure which route to take (the specs are still pretty sweet for this hp (paid $430) despite psu sour aftertaste, thanx