Special Features; Pc Health Monitoring - Supermicro Supero X8DAH+-F User Manual

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Special Features

Recovery from AC Power Loss
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 hit 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 X8DAH+/X8DAH+-F/
X8DAH+(-F)-LR. All have an onboard System Hardware Monitor chip that supports
PC health monitoring. An onboard voltage monitor will scan these onboard volt-
ages continuously: CPU0 Vcore, CPU1 Vcore, 1.5V, 5V, 5VSB, 12V, -12V, 3.3Vcc,
3.3VSB, VBAT and Vtt. 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
The PC health monitor can check the RPM status of the cooling fans. The onboard
CPU and chassis fans are controlled by Thermal Management via BIOS (under
Hardware Monitoring in the Advanced Setting).
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 it detects
that the CPU temperature is too high, it will automatically turn on the thermal fan
control to prevent any overheat damage to the CPU. The onboard chassis thermal
circuitry can monitor the overall system temperature and alert users when the chas-
sis temperature is too high.
Note: To prevent system overheating, be sure to provide adequate airflow
to the system.
CPU Fan Auto-Off in Sleep Mode
The CPU fan becomes active when the power is turned on. It continues to operate
when the system enters the Standby mode. When in the sleep mode, the CPU will
not run at full power, thereby generating less heat.
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Chapter 1: Introduction