Good morning ... fix the pc peeo the truth is getting complicated because I do not want to end up throwing it ... the idea is to save it .... I have a motherboard msi 0a90 ms7336 1.09 ..... intel pentum dual processor E2140 ..... intel 946 pl / gz express chipset .... socket lga775 pci-e matx .... 2 * 240 pin ddr2 memory 1pci-express x16 expansion slots 2pci-express x1 ....... 1pci I would like to add a graphics card (xq does not have) to change the processor for a better one ... the problem is that I don't know which one to buy ....