Yeah that's definitely unstable to be having registry problems... Make sure your PCI bus is locked at 33mhz.
Shady, you show that you are at 3200+ with stock voltage. Did you try bumping by .5v or so and see if it fixes the prime problem? Just a thought, it might fix that small prob and probably will only up your temps by 2-3 degrees. My tbred runs 2.4 with 1.775v(1.72 act), and I've run p95 for almost 48hr without error, but at default voltage I was having p95 probs at 2.1ghz and still running apps smoothly.