You're applying way too much voltage to the Northbridge and RAM.
1.4v is really the limit on your NB, and 1.5 at the max. 1.6v is going to make it extremely unstable, even with the best air cooling. 1.3.v should be enough, even with all 4 dimm slots filled at this clock rate. 1.4v is the highest ive needed to go with my q9550 at 4.0ghz, and 8gb of 1066.
Your memory shouldnt need any more than 2.2v, even with a performance 1066mhz kit. Reduce back to 2.2v, make sure the divider puts it at 1066/533 or below so it isnt being overclocked, and also manually enter the ram timings that is it rated for (should be on the ram itself, or on the product description) With a small 7x multiplier, you're going to hit the FSB a lot, which is going to reduce what dividers are available to you.
Then back off your PCI-E freq to 101. No need for 104mhz, its just going to cause instability.
To be honest, 3.2ghz is pretty damn good considering it's only a 2.33ghz chip in the first place. You're most likely at an FSB wall, or have ran out of memory dividers. Anything over 450fsb needs a lot of tweaking.
See how far you can push it with 1.368v (Intel's recommended limit for 45nm cpu's) You might be able to push 3.4ghz, but i doubt you'll get any further than that.
Use CPU-Z to check your stats.
