I'm using the 32 bit Vista home premium. I have 4 gigs of DDR2 800MHZ RAM. Since 32 bit can only use 3, i feel like im wasting one. Or does it actually use it and not say? if i upgrade to 64 bit, will i see a huge increase in performance? I havent gotten past 30% memory yet Secondly, is there an easy way to just simply upgrade from 32 bit to 64 bit? or do i have to wipe clean and start over? And im just wondering if all my drivers will work... AMD 6000+, Geforce 8800GTS 640 MB CPU Question. I read somewhere that you need a BIOS update for vista to recognize the AMD processor.. my computer reads it as like.. ???processor??? or something.. Where is the link to this bios update? I cannot find it.... and.. do you think this is actually decreasing my performance?