Running the same mobo, an i7-DO oc'd to 3.8 and 3-gtx-275's (lot of heat). I have a Thermalright Ultra-120 Extreme cpu cooler. It is in a ThermalTake Armour+ with lots of fans (4in,2out,2cpu,2memory,2internal,3gpu).
Idle temps. look a little higher than mine.
The running temps. look too high. Funning F@H up to high 90% (avg. 85%) and F@H on the 3 gpu's (again lots of extra heat in the case) my cores go to the low/mid. 50C range. Max for about the past 3 days has been 59,58,57,57C on Real Temp 3.00. Min. @ idle has been 32,31,31,29C. Room temp. the AC is set to 20C. The min. temp. in the case is 21.1C @ the front HDD's ( right after an intake fan), max. in the case is 47.5 and 49.3 between the gpu's pcb's.
I had higher temps in the case but used my 2 Scythe fan controlers with the 8 temp. probes and a smoke test to get some air flow issues figured out. Had some stagnant air pockets right below the cpu cooler. The gpu's were getting too hot, I corrected this with a bigger rear exhautst fan and it brought the cpu temps. down too.
Try resetting the cpu cooler, but also look at how you are cooling the case. As I found out, a freezing cold room doesn't do much if the air isn't flowing through the case right. Remember get enough exhaust, and proper flow through where you need it.