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H8DA6+/I+(-F) Serverboard User’s Manual
1-3 Chipset
Overview
The H8DA6+/I+(-F) motherboard is based on the AMD SR5690/SP5100 chipset.
This chipset functions as a Media and Communications Processor (MCP). Control-
lers for the system memory are integrated directly into AMD Opteron processors.
AMD SR5690/SP5100 Processor
The AMD SR5690 is a single-chip, high-performance HyperTransport peripheral
controller. It includes a 46-lane PCI Express interface, an AMD Opteron 16-bit Hyper
Transport interface link and a dual-port Gb Ethernet interface. This systemboard
contains two of these chips. Each chip connects directly to a CPU and to different
peripheral devices.
The SP5100 is a single chip peripheral controller that connects to the system's
SATA drives, a 6-port Serial ATA interface, a 10-port USB 2.0 interface and other
peripheral devices as a secondary controller.
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 effi cient use of memory
in multi-processor systems. The end result is a signifi cant increase in bandwidth
within the chipset.
1-4 PC Health Monitoring
This section describes the PC health monitoring features of the H8DA6+/I+(-F) .
The motherboard 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 defi ne the sensitivity of the volt-
age 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.
