So I have had a Dual Channel set of RAM working for about 3 years until yesterday. My computer refused to POST and that prompted me to start some investigating. After trying each stick by itself and my computer not POSTing, I tried some Corsair and G.Skill RAM from another computer and my machine booted just fine.
No, I have not Memtested the sticks because I cannot get any of my 3 computers to boot with a Buffalo RAM stick in it. They were running at rated speeds the entire time I owned them and I take very good care of my components.
Let me know if there is any information you need that I haven't provided here. Oh, and for clarification the RAM in question is a set of FSX800D2C-1G sticks equalling 2x1GB. I just don't know the name of the set.