SUPER MICRO Computer H8DMT user manual PC Health Monitoring

H8DMT/H8DMT-IBX/H8DMT-F/H8DMT-IBXF User’s Manual

nVidia MCP55 Pro Chipset Media and Communications Processor

The nVidia MCP55 Pro Chipset is a single-chip, high-performance HyperTransport peripheral controller. It includes a 28-lane PCI Express interface, an AMD Opteron

16-bit Hyper Transport interface link, a four-port Serial ATA interface, a dual-port Gb Ethernet interface, a dual ATA133 bus master interface and a USB 2.0 interface. This hub connects directly to the CPU.

HyperTransport Technology

HyperTransport technology is a high-speed, low latency point to point link that was designed to increase the communication speed by a factor of up to 48x between integrated circuits. This is done partly by reducing the number of buses in the chipset to reduce bottlenecks and by enabling a more efficient use of memory in multi-processor systems. The end result is a significant increase in bandwidth within the chipset.

1-6 PC Health Monitoring

This section describes the PC health monitoring features of the H8DMT/H8DMT-IBX/ H8DMT-F/H8DMT-IBXF serverboard. The serverboard has an onboard System Hardware Monitor chip that supports PC health monitoring.

Onboard Voltage Monitors

The onboard voltage monitor will continuously scan crucial voltage levels. 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 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 define an overheat temperature. When this temperature is exceeded or when a fan failure occurs, 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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