Your right about those CPU temperatures. An i7 950 at idle should hover between 25-35, and under load +10/15 to those. I suspect it may be a combination of a few things:
- The case is simply to cramped. This is my opinion, but it has no exhaust fans for all the heat your GPU is giving off (it relies on the PSU to vent warm air out - But the PSU generates heat anyway!!!). The PSU is also stacked right on-top of the CPU's heatsink, with your graphics right below it. Looking at the cable clutter mess the reviewer at bit-tech.net got himself into, I would say not much of the cool air from the front of the case is making it to the back anyway.
- Poor case ventalation. That case supports 2 120mm fans - Do you have any in there at all (You say standard ones wont fit???)? If you have no fans at all then I would say thats your biggest issue. You should already have one fan installed in it at the front? In the review of this case on bit-tech.net, they installed 2 fans at the front. They moved the included one up, and placed another underneath. The holes should already be there.
- CPU & Heatsink seating. It's harder to do these days on Intel's stock HSF, but check the pins locking it to the board are fully locked in place. If the HSF is not seated to the CPU with 100% contact, temperatures creep up.
Unless you want to explore water cooling (Not sure where you would put the radiator in that case), you might want to consider a larger case, especially if that nice graphics card you have gets a full workload...
Yep there's 2x120mm fans at the front. I've actually created a bit of an "shield" below the top fan so all the air is directed towards the CPU. But there's still the issue of the hot air not being drawn out the back of the case. A lot of work was put into routing the cables around the outsides of the case so they shouldn't be blocking too much airflow.
The heat sink is definitely seated properly.
Here's some pictures anyway... yes I know that the "shield" is made of cardboard but I plan to do it properly once all the cooling issues are sorted out.
Front (with fans taken out):http://img809.imageshack.us/img809/9139/img0896p.jpg