After several hiccups regarding forgetting to put in P4 power cables (Grr), I got it to, um, NOT boot up.
It was the RAM problem, as mentioned by disko555. I had to put in old RAM, and change the specific 4 timing settings in the BIOS to the ones the Corsair 3200C2PT wanted, and it worked.
The system is not as quick as I'd have thought in windows, but at least it works. Perhaps I need to tweak more BIOS settings. There were about 5 other RAM settings that I can find no clue about how to set.