Props to you, mrcorbo.
Got a W3690 off of Ebay. Some korean guy had multiple on sale, when he was down to one, I bought it for $204. Received it yesterday
, works like a charm. I have an Asus P6t, which I flashed to the newest BIOS. There is no official support for Westmere SKUs, but they work
I had it running at 4GHz by just increasing the multiplier, but my cpu cooler isn't quite up to the task. At 3.73GHz and 3.87GHz, T_junction was around 55 degrees C with limited noise from the cooler, at 4Ghz the temperature jumped to 61 degrees C and the cooler fan went nuts. All six cores were 100% loaded (POVRay).
It's currently running at 3.73GHz, a healthy 40% increase on the i7-920 it replaced.
I spent another $70 on 12GB 1833MHz DDR3. I read somewhere Westmere CPUs don't support DIMMs larger than 4GB.1833 only works with some wonky X.M.P overclocking profile, so it runs at 1600MT/s, that's still a 50% increase over the 1033MHz I used to have.
40% higher single thread performance, 50% extra cores, 50% more bandwidth for $270
Cheers