Hey friends, I have an Intel original 845 motherboard with 2.8 ghz processor and 512mb ram. I was planning to make my PC Vista ready. Now to get a pci-e graphics card i will have to change my mobo, processor (new socket), ram (higher speed). this would cost me a lot. My mobo has a 4x AGP slot. Will it be ok if I buy an AGP version of the 6600GT card? But these card are for AGP 8x. So wont there be a voltage problem?