OK, I finally got around to remounting my i7 cooler, since the temps were too hot to overclock. However, the core temperatures are still about the same as before. I still have temps in the high 40's/ low 50's idling at desktop. When I remounted, I made sure to apply the correct amount of thermal paste (just a drop), and firmly screw in the fan. My case definitely has good airflow, so it's certainly not that. What else could be wrong with my system that I have these high idle temps?