How do i know if my motherboard will…?

will be compatible with AGP graphic card?…i want to buy another one but seems to powerful for my old computer hehe…one of the system requirements is PCI Express 2.0-compliant motherboard… and i have no idea if my motherboard can support that…i guess i will have to go with the agp one…. thanks a lot jayko [...] http://bit.ly/qc7ETU