X7DBU/X7DGU 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 Con- trol setting in the Advanced section (Boot Features) to change this setting. (Note: Default: Last State).
1-4 PC Health Monitoring
This section describes the PC health monitoring features of the X7DBU/X7DGU. All have an onboard System Hardware Monitor chip that supports PC health moni- toring.
Onboard Voltage Monitors for CPU Cores, Memory, Chipset, HT, +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 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
