Ram:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231166

Video Card:

http://www.nvidia.com/object/product_geforce_gtx_260_us.html

Motherboard:

http://www.nvidia.com/object/product_nforce_780i_sli_us.html

all these links give all specs needed to solv this problem... I hope.