The ambient room temperature is probably around 75. I have one front side 120mm intake fan and two 120mm outtake fans by the cpu, one in the back and one on top. My case is a antec p160 or something. same set up as the p193, minus the side fan http://www.newegg.com/Product/Product.aspx?Item=N82E16811129176
I just find it very odd that the computer was fine for almost 5 years and now suddenly is acting up in this way.