"So what exactly does it take for a board to sport the Extreme Design  name? Well it could be SATA 6Gb/s or USB 3.0 support. Maybe even the  ASUS EPU, MEMOK button, or the ASUS Express gate. It could be improved  cooling with a fanless heatpipe design, or the Stack Cool 3  technology.  It could also be the ASUS TurboV overclocking utility, or the boards 16    2 Power phase design. However, it's probably a combination of all of  these features that make a board designed to the extreme!"
Asus P6X58D-E Review @ Neoseeker
                 
                              Asus P6X58D-E Review @ Neoseeker
 
       
      