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Real-Time Clock/Calendar
The real-time clock provides system clock/calendar information stored
in a non-volatile memory (NVRAM). The real-time clock battery provides
power backup for the real-time clock.
BIOS
A BIOS and Setup Utility are located in the Flash EPROM on the system
board and include support for system setup and PCI/ISA Plug-and-Play
auto-configuration. A number of security, reliability, and management
features also have been incorporated to meet vital server needs.
IDE Controller
The system includes a dual channel enhanced IDE interface controller.
The controller has a primary and secondary connector located on the
system board, each connector supporting a master and a slave device.
The IDE controller provides support for the internally mounted CD-
ROM and an optional tape device.
Network Controller
The system board includes a 10BASE-T/100BASE-TX network
controller based on the Intel 82558 Fast Ethernet PCI Bus Controller.
As a PCI bus master, the controller can burst data at up to
132 MB/sec. The controller contains two receive and transmit FIFO
buffers that prevent data overruns or underruns while waiting for
access to the PCI bus. The controller has the following:
32-bit PCI bus master interface (direct drive of bus), compatible with
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PCI Bus Specification, Revision 2.1
Chained memory structure with improved dynamic transmit chaining
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for enhanced performance
Programmable transmit threshold for improved bus utilization
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Early receive interrupt for concurrent processing of receive data
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On-chip counters for network management
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Autodetect and autoswitching for 10 or 100 Mbps network speeds
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Support for both 10 Mbps and 100 Mbps networks, capable of full or
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half duplex, with back-to-back transmit at 100 Mbps.
The network status LEDs on the system board indicate:
Transmit/receive activity on the LAN
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Valid link to the LAN
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10/100 Mbps transfer mode.
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System Overview 1-9
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Table of Contents
Troubleshooting
