Processor

Hello sir, good day! for the p5 you can buy core2duo processor, you can read extra information on this website: http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=3584478

If you want an INTEL DG31PR board, you can buy the core 2 quad processor, You can visit this website for additional info: http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=3250953&Sku=I69-2156



Now if you choose the AMD brand, since you did not specify any particular motherboard, get the AM2 socketed motherboard, inquire about the AMD motherboard available on your local computer dealer, so you can use AMD 64 X2 dual core processors.



I do suggest intel core 2 quad for 32 bit windows vista or XP, and AMD 64 x2 dual core processor if you want 64bit vista or xp64 for your OS. So the choice of motherboard and processor really depends on the Operating System you want to install.