I recently replaced the AMD stock cooler and fan (which I lapped from 220 to 2000) with a SLK 947U + 92mm Tornado. So far my load core temps have dropped from 53.5-54C down to 42C. This is obviously expected since the sink is better.
What wasnt expected was my abient temp dropped. Im not sure what caused this but I was hoping to list a few of the changes I made and maybe get everyones opinion as to which one was the likely culprit for the temp drop:
-My SATA drive (which has the converter to mount into a 5.25 bay) as well as my burner were moved from the lowest 5.25 bays all the way to the top. The hard drive being at the very top bay.
-I replaced the flat IDE cables with rounded ones.
-The SLK is oriented in a verticle direction such that the air from the fan can only go in 2 directions, down towards the northbridge cooler or up towards the bottom PSU fan. The old cooler mounted to the ZIF lugs and was oriented left to right, blowing air over the mosfets and memory.
I think that the temp sensor on my NF7-S Rev2 is just to the right of the CPU, near the memory slots (At least the winbond chip is there). Since the Tornado is rather large, about a half inch on either side over laps and is blowing on either side of the Zif socket. Other than the changes above nothing else was altered about the case or components therein.
For reference, my load ambient dropped from 33C to 23C.
Any light you all can shed on this would truly be appreciated.