Asus Z9PH-D16 - Manual (Page 18)

1-6 Chapter 1: Product introduction
Temperature, fan, and voltage monitoring
The CPU temperature is monitored to prevent overheating and damage. The
system fan rotations per minute (RPM) is monitored for timely failure detection.
The chip monitors the voltage levels to ensure stable supply of current for critical
components.
1.4.2 Innovative ASUS features
ASUS Fan Speed control technology
The ASUS Fan Speed control technology smartly adjusts the fan speeds according
to the system loading to ensure quiet, cool, and efficient operation.
PIKE (Proprietary I/O Kit Expansion)
PIKE is an on-demand upgrade kit for users. This ASUS unique feature enables
users to choose their preferred I/O solutions. ASUS provides multiple SAS
solutions for different segments and purposes and PIKE saves lots of validation
efforts and hardware cost for end users. Moreover, the special patent design offers
multiple I/O solutions without occupying the Slot 6 in 1U system.