Special Features; Pc Health Monitoring - Supermicro X7DCL-3 User Manual

X7DCL-3/X7DCL-i User's Manual
1-3

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.
1-4

PC Health Monitoring

This section describes the PC health monitoring features of the X7DCL-3/X7DCL-
i. All have an onboard System Hardware Monitor chip that supports PC health
monitoring.
Onboard Voltage Monitors
An onboard voltage monitor will scan for the CPU Cores, Chipset Voltage, +1.8V,
+3.3V, +5V, +12V, -12V, +3.3V Standby, +5V Standby 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.
CPU Overheat LED and Control
This feature is available when the user enables the CPU overheat warning function
in the BIOS. This allows the user to defi ne an overheat temperature. When the
CPU temperature reaches the pre-defi ned overheat threshold, both the overheat
fan and the warning LED are triggered.
1-10