We used the WattsUp? Pro meter in these tests. This allowed us to measure power use directly from the wall. This meter also uses a USB cable to connect to a computer and Logger Pro software to graph the readings while we run our tests.
To test total system power use, we used AIDA64 Stability test to load the CPU and then recorded the results.
On the X9DR7-TF+, we used a total of 24 sticks of Hynix memory compared to the other boards which only used 8 total. This adds to the total power use of this board by a large amount of over 100 watts. Clearly, this board can gulp power when under load, which is a factor to consider when setting one of these up.