I recently was given a Dell XPS 435MT. It runs great. The MB has 6 RAM slots. It currently has 6-1 Mb chips. I am upgrading to a 2Gb video card and other things. I want to upgrade the RAM. I would like to get at least 16Gb or 24Gb total. How do I arrange the RAM? There are 6 slots. 3 Odd and 3 Even slots. Do I use PAIRS of RAM and only use 2 slots? Do I buy 3 chips and use 3 slots? DO I buy 6 same chips and use all 6 slots? Can I buy 2 pairs of RAM and use 4 slots? The Dell site and the Dell manual are confusing. I have worked on PC clones for years and I have always done the RAM thing in PAIRS? Thanks in advance for any help...