My q6600 is running at about 55c with stock heatsink, I have experimented with the case and came to the conclusion that either my paste is bad or that i need a new heatsink, i do not have it overclocked and it was running cool around 40c before i installed a new PSU.
Do you think it worth just buying the paste, applying it and seeing what happens or buying a whole new heatsink? i plan to overclock it in the future i was looking at this heat sink -> http://www.directcanada.com/products/?sku=16720AC9955&v... is that good for overclocking?
Another good choice is the Xigmatek S1283/4 or Sunbeam Core Contact Freezer
if your nothing overclocking your cpu will last 1o years why waste money?
you only need a good cooler if your going to use it - if your running low at 3ghz or lower the stock is fine. you might add a few months to a cpu that will probably still work in 2020 when we using 100 core systems!
I was able to run my Q6600 at 3.0 GHz. with stock heatsink and at stock voltage. Mine ran happily at 3.3 GHz. with only a small increase in vcore with a $20 Arctic Cooling Freezer 7 Pro. Running at 3.6 GHz. took both a sizeable increase in vcore - 1.2625 volts (VID) to 1.42 volts, a good HSF (TRUE), and some care with case airflow. Load temps were 61C - 65 C.