Hi, I have a Dell XPS 410 currently equipped with a Core 2 Duo 1.86 GHz CPU. I want to upgrade it to either a: HU585 Kentsfield Quad Core Q6600, 2.40G, 8MB, 1066FSB, B30 or MP626 Kentsfield Quad Core Q6600, 2.40G, 8MB, 1066FSB, G0 My question is this: will I also have to upgrade the RAM when I upgrade the processor? Currently I have 4x512MB (2 GB Total) of 240-pin DIMM DDR2 PC2-5300 installed. Will this ram continue to function after the CPU upgrade, or will I need faster RAM? Specifically, I was wondering if this RAM would work in my system after I upgrade the CPU: 4x1GB (4 GB Total) - 240-pin DIMM DDR2 PC2-8500 • CL=7 • Unbuffered • NON-ECC • DDR2-1066 • 1.8V • 128Meg x 64 Any help with this question is greatly appreciated!