I'm using a 1GB stick of PC2 6400 w/ a P5B-Deluxe and an E6400. The timings had to be tightened to 4-4-4-12, out of the bos they were 5-5-5-13.
I had the single stick running at 450Mhz / 2.15V at one point - stable.
I/m running the RAM at 406/2.05 now - Rock Solid.
This was my first esperience with Patriot. After the timing SNAFU being fixed I am very pleased.
[SIZE=\"1\"]E6400 @ 3.4 , Noctua 120
7900GT @ 670/1680 , VF900
2 x 1GB Patriot 6400 @ 425
WD SATA 250GB
Neo HE 550
P180 / G15 / MX1000[/SIZE]