Hi guys. I built my first DIY system in 2005 and was very pleased with it until I got my hands on a NVidia Quadro FX 1400! I can't use this awesome card with my current mobo(Gigabyte P4 Titan 865PE) because it doesn't have PCI Express. I was wondering if I upgrade to a pci express mobo, can I still use my current memory and processor? (184 pin ddr 400 sdram, P4 3.4E Prescott socket 47 Oh yes, I have a Matrox Millenium P750 video card. Thanks.