X7DBi+ User's Manual

1-3 Special Features

Recovery from AC Power Loss

The feature allows the user to set the power state after a power outage. You can select Power-Off for the system power to remain off after a power loss. Select Power-On for the system power to be turned on after a power loss. Select Last State to allow the system to resume its last state before the power loss. The default setting is Last State.

1-4 PC Health Monitoring

This section describes the PC health monitoring features of the X7DBi+. All have an onboard System Hardware Monitor chip that supports PC health monitoring.

Onboard Voltage Monitors for CPU Core, Memory Voltage, Chipset Voltage, +3.3V, +3.3V Standby,+5V, +5V Standby, +12V, −12V 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 user-defined threshold. The overheat circuitry runs independently from the CPU. When 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 Fan Auto-Off in Sleep Mode

The CPU fan activates when the power is turned on. It continues to operate when the system enters a standby mode. When in the sleep mode, the CPU will not run at full power, thereby generating less heat.

System Resource Alert

This feature is available when used with Supero Doctor III in the Windows OS environment or used with Supero Doctor II in Linux. Supero Doctor is used to

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SUPER MICRO Computer X7DBi+ user manual Special Features, PC Health Monitoring