I'm upgrading my older HP desktop. It currently has an Athlon II X4 635 2.9GHz 95W (part #ADX635WFK42GM) processor. I'm upgrading to a Phenom II X6 1055T 95W (Part #HDT55TWFK6DGR). I know my motherboard will support the new processor and they're both AM3 socket so those aren't issues. My...