Special Features; Pc Health Monitoring - Supermicro X7DCA-3 User Manual

X7DCA-3/X7DCA-i User's 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 Power Lost
Control setting in 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 X7DCA-3/X7DCA-
i. All have an onboard System Hardware Monitor chip that supports PC health
monitoring.
Onboard Voltage
An onboard voltage monitor will scan the voltages of CPU Cores, Chipset, Memory,
+1.8V, +3.3 (Standby), +5V (Standby), +12V, -12V and VBAT continuously. Once
a voltage becomes unstable, a warning is given or an error message is sent to
the screen. Users can adjust the voltage thresholds to defi ne 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-defi ned
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.
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