I need some support regarding my PC upgrade. Currently I have a PC with a Motherboard Asus P5ND2-SLI N-Force 4MB, with an Intel Pentium 4 3.2 GHZ 940 D 4MB L2 Cache S775, the graphic card is Nvidia GForce 7800 GT (256 MB PCIE), 1 GB memory Crutial 2X512 DDR2 PC5300, running Window XP (32, SP3). I want to do an upgrade and I don’t want to overspend. I am thinking to buy a Nvidia Gforce 9800 GTX, and increase the memory to 4 GB.
My questions are: Does my motherboard is compatible with Kingston HyperX 4GB (2x2GB) DDR2 PC2-8500C6 1066MHz Dual Channel Kit? Can I replace the Intel Pentium with a bigger one? Do I need to upgrade the power supply as is just 650 Watt? Do these changes will increase my FPS in Microsoft FSX?