MY system was 770

barton 2500 xp
gigabyte MOBO raid and dual channel ram 400 FSB
2X 512 DDR400
80 gig SATA
Gf4 4800
CD read and write
3.5

Cruical for the RAM

go to https://www.pricewatch.com for the components. Make sure you do compatability checks on the parts.

https://www.pricegrabber.com/home_com...2a8d03dd0936f7 there is another one to check. Order everything online. Just make sure they ahve a good rating. I did and I got everything within three days of the order.