ok any word on the revision? because the rev 1.3 can handle 4 gb ram and the 1.4 can handle 8. assuming it is the one that can handle 8 the cas latency and timings seem ok, but in this particular swap your old stick with severely restrict the new one. can the old stick run a higher mhz and stay below 1.5v or no. if not the changes in voltage and step down of the better stick makes me think you would be better just buying a pair.