Quote:
Originally posted by Cathar
How does drilling and sticking a thermal probe in your waterblock base give you your CPU temperature? Given that the thermal goop junction for some blocks already forms more than half of the total thermal resistance in the system, your temperature readings from this method will be between 30-60% of reality, with the actual difference being depending on the block in use and the flow rate.
Also what to do about block who's bases are too thin to drill into and insert a thermal probe.
|
I was browsing through the AMD tech docs, and saw page 13 of this:
http://www.amd.com/us-en/assets/cont...docs/23794.pdf . Yes, you're right, this method wouldn't measure actual CPU temp, but if you could estimate the C/W of the TIM (from BillA's or others' data), you could extrapolate from there. Obviously not desirable for a test setup, but to get fairly accurate temp measurements, it should work.
To get actual CPU temps, I suppose you could drill out the block so the probe would be exposed to the core itself. This could also take care of the problem of the base being too thin, since you are using the space between the substrate and the wb, as well as the space drilled out.