Asus P5N-D - Manual (Page 134)

5-22 Chapter 5: Software support
Other feature buttons
Click on right corner of the main window to open the monitor window.
Click on right corner of the expanded window to switch the temperature from
degrees Centigrade to degrees Fahrenheit.
Displays the CPU/
system temperature,
CPU/memory/PCIE
voltage, and CPU/
chassis fan speed
Displays the FSB/CPU
frequency