5C between CPU and ambient?!? That might be possible at idle, but otherwise the TIM joint itself accounts for 8 deg C, on a 70W load.
Then there's the age old "your CPU temp is not real" because the mobo reader can't read anything more accurate than +/- 10 deg C. I just don't understand why people don't get that.:shrug:
I like to see people measure their water temps. It gives us an idea of the cooling efficiency of the rad, and a preliminary idea about the CPU temp, if all other components are known.
Here's a review/comparison of additives, to which I had to comment, because of a similar issue:
http://www.wc101.com/reviews/Additives/
The comments:
http://www.wc101.com/forums//index.p...=ST&f=14&t=346
In short, he trusted his CPU temp readings, but didn't realize the error margin, so the review is skewed, a little bit.