@matx2007, nice katana2!
What's your cpu temp idle , load?
cooling optimized in my case, home made : heatsink on cpu's mofsets
Yes I like the Katana as well. I'm sure temps would be better with the Ninja but I don't think it would fit - at least not my case were I have to have space for the parallel cable as well. The advantage is that it is (at least supposed to be) blowing air over the mofsets... (what cooler are you using there?). If looking into more cooling on this board, I think the north bridge would be my first priority.
You asked, so here are the temps (ambient: 30,5C):
Idle:
Load:
Letting orthos run for hours would raise temps by a few degrees more. I just tired TAT as well: 69C on both cores.
That is much to much for my taste but 1. I would usually never push the computer in so hot ambient (just came in to check mail right now) and 2. I don't think anybody would ever manage to push the cores with games, etc. like TAT does. So I'm satisfied.