E-mail response from Crucial:
"Hello, we do not recommend our mods to run at 1t, if a customer is able to get them to run at 1t great, but in our experience the unit is more stable at 2T."
One long run-on sentence conveying absolutely no useful information. Oh well, I give up. The system runs great for me with memory slightly above stock speeds and 2T command.
Super Nade: Thanks for your offer, but I don't want to be without a running system for several days. I'm just going to live with what I have and be happy about it.
I don't really care about benchmarks as long as my gaming performance is good. For that, the best thing I could do is upgrade my video card and add another 1 GB of memory.