Quote:
Originally Posted by SKYMTL Now you may ask yourself: "why don't you use peak temperatures". That's because every now and then a temperature monitoring program will have a millisecond spike which while high does not reflect the actual load temperature of the processor on a regular basis. Averaging things out over 15 minutes allows us to avoid such oddities so they don't impact the final temperatures in a meaningful way. |
I don't know about Core Temp but I do know that RealTemp logs the data to a file and also keeps track of the Maximum temperature within the GUI and not once have I ever seen a single random peak in recorded temperatures.
If you run a test like Prime 95 and use the Small FFTs option, it will load the cores equally and the core temperature tends to stabilize fairly quickly when testing with an air cooler on the bench or in an open case. The data when plotted is mostly a flat line.
Here's an E8400 at 4000 MHz running Prime 95 Small FFTs using the RivaTuner / RealTemp plug-in:
In less than 2 minutes the peak temperature had pretty much stabilized at 64C. During the next 9 minutes it oscillated a little bit between 64C and 65C but there were no random peaks. There never is when I'm testing. If you are using Core Temp and are having problems then maybe it's time to change software.
RivaTuner makes testing easy. Select an area of the graph and it automatically calculates the Minimum, Maximum and Average. In this example, it shows the range over a 9 minute interval while running Prime 95 between 64C and 65C and the average is 64.17C on both cores. That's excellent consistency. Come up with a standardized test procedure and this software will provide you with consistent and repeatable results.
If you want some more examples check out the recent cooler reviews at
X-Bit Labs. They are very happy with the results they are getting from RealTemp and the RTCore.dll plug-in.
You can download RealTemp and the plug-in here:
http://www.fileden.com/files/2008/3/...alTempBeta.zip
I also included i7 Turbo and i7 Turbo V8. These programs are the most accurate way to monitor the CPU multiplier using the Intel recommended method as outlined in their
November 2008 Turbo White Paper. This data can be used to watch for turbo throttling at full load which is a problem on some motherboards like the Asus P6T Deluxe when pushed hard.