Supermicro H8DMU+ User Manual download pdf (Page 16)

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H8DMU+ User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the H8DMU+. The

serverboard has an onboard System Hardware Monitor chip that supports PC

health monitoring.

Onboard Voltage Monitors

The onboard voltage monitor will scan these voltages continuously: CPU cores,

Hyper Transport (1.2V), memory banks (1.8V), 1.5V, MCP55 Core, 3.3V, 12V, -

12V, 5V, VSB and battery voltage. 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 deﬁ ne the sensitivity of the voltage monitor. Real time readings of

these voltage levels are all displayed in BIOS.

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 deﬁ ne 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 5-phase-switching voltage regulator for the CPU core can support up to 120A

and auto-sense voltage IDs. This will allow the regulator to run cooler and thus

make the system more stable.

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Supermicro H8DMU+ User Manual Page 16