I am currently trying to do the same thing. There are two things you will need to do before you can upgrade, 1. is get a new power supply and 2. is do some case modifications or make sure you get the low profile version of the card. The PCI-E slot is the top one in the E510 mobo, and so theres no place for the fan to exhaust out of, so you'll have to use a dremel tool or something similiar to chop out part of the back of the case to make it fit. Otherwise you can get the low profile version of the card, its more expensive but will fit without case mods.