Hello! I have Windows XP Pro 32 running with 4 GB DDR5 Ram. I just got hooked up with an older GT 620 2GB video card, but my question is will that mess anything up? This is kind of hard to explain but, I know XP 32 has a 4 GB limit. Does that mean my video card will do nothing then? Or will it downgrade my mobo memory to 2 GB? Thanks for your time.