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H8DG6/i(-F) Serverboard User’s Manual
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Chipset Overview
The H8DG6/i(-F) serverboard is based on the AMD Dual SR5690 and one SP5100
chipset. This chipset functions as a Media and Communications Processor (MCP).
Controllers for the system memory are integrated directly into AMD Opteron
processors.
AMD SR5690/SP5100 Processor
The AMD Dual SR5690 and one SP5100 are each a single-chip, high-performance
HyperTransport peripheral controller. It includes a 42-lane PCI Express interface, an
AMD Opteron 16-bit Hyper Transport interface link, a six-port Serial ATA interface
and an eight-port 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.
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PC Health Monitoring
This section describes the PC health monitoring features of the H8DG6/i(-F)
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.
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