Pc Health Monitoring - Supermicro H8DM3-2 User Manual

H8DM3-2/H8DMi-2 User's Manual
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PC Health Monitoring

This section describes the PC health monitoring features of the H8DM3-2/H8DMi-
2. The serverboard has an onboard System Hardware Monitor chip that supports
PC health monitoring.
Onboard Voltage Monitors for two CPU cores, 3.3V, +5Vin, +12Vin,
+5V standby and battery
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 defi ne the sensitivity of the voltage moni-
tor. 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 3-phase-switching voltage regulator for the CPU core can support up to 80A and
auto-sense voltage IDs ranging from 0.8 V to 1.55V. This will allow the regulator
to run cooler and thus make the system more stable.
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