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Special Features
Recovery from AC Power Loss
Basic I/O System (BIOS) provides a setting for you to determine how the system will
respond when AC power is lost and then restored to the system. You can choose
for the system to remain powered off, (in which case you must press the power
switch to turn it back on), or for it to automatically return to a power-on state. See
the Advanced BIOS Setup section to change this setting. The default setting is
Last State.
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PC Health Monitoring
This section describes the PC health monitoring features of the board. All have an
onboard System Hardware Monitoring chip that supports PC health monitoring. An
onboard voltage monitor will scan these onboard voltages continuously: CPU Vcore,
12V, -12V, 5V, 3.3V, 3.3VSB, memory and battery voltages. Once a voltage becomes
unstable, a warning is given, or an error message is sent to the screen. The user
can adjust the voltage thresholds to define the sensitivity of the voltage monitor.
Fan Status Monitor with Firmware Control
PC health monitoring in the BIOS can check the RPM status of the cooling fans.
The onboard CPU and chassis fans are controlled by Thermal Management via
IPMI Firmware.
Environmental Temperature Control
The thermal control sensor monitors the CPU temperature in real time and will turn
on the thermal control fan whenever the CPU temperature exceeds a user-defined
threshold. The overheat circuitry runs independently from the CPU. Once the ther-
mal sensor detects that the CPU temperature is too high, it will automatically turn
on the thermal fans to prevent the CPU from overheating. The onboard chassis
thermal circuitry can monitor the overall system temperature and alert the user when
the chassis temperature is too high.
Note: To avoid possible system overheating, please be sure to provide
adequate airflow to your system.
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Chapter 1: Introduction
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