I have a Abit NF7-S rev. 2 board with a 2500 barton cpu, 2x512MB Corsair pc3200 ram running in dual mode. My question is I have one other DIMM slot open, can I put one of my 512 sticks of SimpleTech pc2700 ram in that slot. If so, will I see any performance gain? Will I lose the advantage of Dual mode? All suggestions welcome.