The jury is out on the capabilities of a 226W peltier for the conroe..(someones needs to do this).
I run a 226W peltier being driven at +12V on a 3700+Sandiego with a clock speed of 2.80GHz on 1.5Vcore cooled by a very capable water setup, granted I run in some very high ambient temperatures with medium to high relative hummidity.
At 100% the CPU temperature normally ranges up to 31C but the core temperature will hit a high of 42C.
Some summations are that I still have only 12v being applied to a 15v device so my effective power rating of 226W is by no means being achieved (something I intend to resolve shortly).
Even with the increase in capacity I still feel that the 100% load temperatures will still in my case be high, I expect to see somewhere around 19 to 21 for the CPU and a core temprature unkown.
The 226w unit just does not have the capacity to cope with the CPU's and peltiers energy load and bring with it sub-zero temperatures.
This is something I was aware of at the onset of my little project but since my objective was to maintain a decent overclock with acceptable temperatures in my adverse enviromental conditions, I am pleased with the result. As I stated this will improve once the capacity of the peltier is raised by supplying it with closer to +15v.
As I am unaware of any 437W pre-configured setup's in the market place you look to be stuck with the DIY avenue...
As for comparing it with the performance of a phase change setup it is not in the race but
they really run in seperate races anyway. A bit like comparing apples to oranges.
A cheaper 226W configured setup can be had and would be a nice thread on it's effective performance with the Conroe, even if sub-zero load temperatures are not a reality.