SUPER MICRO Computer P8SCI, P8SC8 manual PC Health Monitoring, CPU Thermal Management

P8SC8/P8SCi User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the P8SC8/ P8SCi. The motherboard has an onboard System Hardware Monitor chip that supports PC health monitoring.

Eight Onboard Voltage Monitors for the CPU Core, Chipset Voltage, +3.3V, +5V, +5V Standby, 1.5V, VBAT, and ±12V

The onboard voltage monitor will scan these voltages continuously. Once a voltage becomes unstable, it will give a warning or send an error message to the screen. Users can adjust the voltage thresholds to define the sensi- tivity of the voltage monitor.

Fan Status Monitor with Firmware/Software Speed Control

The PC health monitor can check the RPM status of the cooling fans. The onboard fans are controlled by thermal management via BIOS.

CPU Overheat/Fan Fail LED and Control

This feature is available when the user enables the CPU overheat/Fan Fail warning function in the BIOS. This allows the user to define an overheat temperature. When this temperature is exceeded or when a fan failure occurs, then, the Overheat/Fan Fail warning LED is triggered.

Auto-Switching Voltage Regulator for the CPU Core

The 3-phase-switching voltage regulator for the CPU core can support up to 60A current and auto-sense voltage IDs ranging from 0.875 V to 1.6V. This will allow the regulator to run cooler and thus make the system more stable.

1-4 CPU Thermal Management

Thermal Management 2 (TM2)

When TM2 is enabled in the BIOS and the CPU temperature reaches a pre- defined threshold, a thermal monitoring mechanism will reduce the process speed by lowering the bus-to-core ratio of the processor core clock and decrease the voltage input by changing the CPU VID. This combination of reduced CPU bus frequency and CPU VID effectively decreases CPU power

1-10