1-10
X7DVL-3/X7DVL-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 X7DVL-3/X7DVL-
i. All have an onboard System Hardware Monitor chip that supports PC health
monitoring.
Onboard Voltage Monitors for the CPU Cores, Chipset Voltage,
+1.8V, +3.3V, +5V, +12V, -12V, +3.3V Standby, +5V Standby and
VBAT.
An onboard voltage monitor will scan these voltages 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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