CPU is at stock settings.
SpeedStep is disabled, kept switching from stock frequency (2.66GHz) to 1.2Ghz near the end of the test. Went back to stock after test was stopped.
I'm using the stock cooler with stock paste.
I have a front 120mm fan drawing air in, back 120mm and a side 80mm blowing air out.
No, the problem is the CPU temp. The CPU at stock with stock fan should NEVER hit 76C on a Core. Re apply thermal paste and re-seat the cooler. The CPU speed dropped because your temps were increasing.
"Intel Heatsinks have thermal material on them from the factory, if you need additional Thermal Interface Material (TIM) and you have a boxed processor that is still within the warranty period of three years, contact Intel customer support for TIM."