Ok, here are my temps from turning on the Xbox:
Dec 26 18:31:02 Temp1: 50.00 F 10 C Temp2: 68.00 F 20 C
Dec 26 18:32:02 Temp1: 60.80 F 16 C Temp2: 73.40 F 23 C
Dec 26 18:33:02 Temp1: 66.20 F 19 C Temp2: 75.20 F 24 C
Dec 26 18:34:03 Temp1: 69.80 F 21 C Temp2: 78.80 F 26 C
Dec 26 18:35:02 Temp1: 73.40 F 23 C Temp2: 80.60 F 27 C
Dec 26 18:36:02 Temp1: 75.20 F 24 C Temp2: 80.60 F 27 C
Now I don't believe that the Xbox could be at 10 C from boot. My ambient room temperature is about 26 C right now. I don't know what's going wrong...