Some New Blood On The Testbed :)

[Petra]

5c cooler ambient temps over the previous testing? Uh, yea, I think that should make a difference, theoretically in a perfect loop you're looking at 5c cooler water temps.

Remember, Scott is measuring the delta T (CPU temp minus water temp), so the data should still be good regardless of the difference in ambient temperature... However, he's also using TAT to monitor the CPU temperature--this is where things get interesting. During some early testing that I was doing for Enzotech, I noticed a discrepancy between my TTV data (E6400 w/CNC milled IHS and thermocouple embedded per Intel TTV spec) and delta T data taken using TAT... basically, the CPU-water temperature delta calculated from CPU temperatures provided by TAT was being effected by changes in ambient temperature, whereas my TTV data wasn't.

As far as I'm concerned, this is kind of a big deal... but I need to look into it further. Hopefully I'll have a chance to put together a crude controlled 'hot box' within the next couple weeks to experiment with testing in hot and cold environments. If I can manage to isolate where the point of influence is, then I may consider TAT/CoreTemp good tools for (non-enviro chamber) controlled testing again.

*EDIT* BTW, Scott... I have a few H2O-120 Compact kits now--let me know if you want me to toss one your way (since I remember you mentioning it a while back).