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Super
P9DSU-C Motherboard User's Manual
1-3
Special Features
Recovery from AC Power Loss
The BMC (Baseboard Management Controller) firmware determines how the system
will respond when AC power is lost and then restored to the system. The system
will remain powered off if the previous power state was off before a power loss. The
system power will be turned on automatically if the previous system power state
was On before the power loss.
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System Health Monitoring
This section describes the features of system health monitoring for the motherboard.
This motherboard has an onboard Baseboard Management Controller (BMC) chip
that supports system health monitoring. An onboard voltage monitor will scan the
voltages of onboard chips, memory, processor, and battery continuously. Once a
voltage becomes unstable, a warning is given, or an error message is sent to the
screen.
Fan Status Monitor with Firmware Control
The system health monitor chip can check the rotation status of a cooling fan. The
system fans are controlled by the Thermal Management Algorithm through BMC.
Environmental Temperature Control
System Health sensors monitor the temperatures and the voltage settings of on-
board processors and the system in real time via IPMI 2.0 interface. Whenever
the temperatures of the processors or the temperature of the system exceeds a
system-defined threshold, the onboard system cooling fans will be turned on to
prevent the processor or the system from overheating.
Note: To avoid possible system overheating, please be sure to provide ad-
equate airflow to your system.
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Power Supply
As with all computer products, a stable power source is necessary for proper and
reliable operation. It is even more important for processors that have high CPU
clock rates. In areas where noisy power transmission is present, you may choose
to install a line filter to shield the computer from noise. It is recommended that you
also install a power surge protector to help avoid problems caused by power surges.
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