Upgrading Your System 4-17
Option Boards
This section describes how to install and remove ISA and PCI option
boards. The system board has two dedicated ISA bus expansion slots
and four dedicated PCI bus expansion slots. One of the ISA connectors
shares a chassis expansion slot with a PCI connector.
The high-performance PCI local bus allows the adoption of newer
networking technology, such as 100 MB/second Ethernet NICs, with a
minimum of effort and without concern for I/O bottlenecks. The PCI
local bus offers up to 133 MB/second bandwidth.
PCI and ISA Slot Locations
Installation Considerations
Newer adapters, designed for Plug-and-Play systems, are automatically
configured by the system without any user intervention. Older ISA
adapters must be manually configured as detailed below. Once the
manual configuration is complete, the Plug-and-Play adapters are
configured around the manually configured adapters without causing
any resource conflicts.
ISA adapters can be Plug-and-Play. ISA adapters that are not Plug-and-
Play must be manually configured following the instructions supplied
with the board. The configuration is defined to the system by creating
the ISA configuration file when running the SSU. If you are adding a
non-Plug and Play ISA option board, run the SSU before installing the
board. For details on running the SSU, refer to Chapter 3.
Controller/Adapter Hardware Configurations
This table lists the option boards you may add to your system that
require specific installation slots and provides information on memory
and I/O addressing and assigned interrupt request number (IRQ).
ISA 1
ISA 2
PCI 1
PCI 2
PCI 3
PCI 4
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