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If you installed a processor with a heat-sink, secure the heat-sink fins using a heat-sink
lock. See Chapter 2, “Servicing the System,” for details.
Adding Expansion Cards
You can install Peripheral Component Interconnect (PCI), non-compliant PCI, Industry
Standard Architecture (ISA), and Plug-n-Play (PnP) expansion cards in the system. See
below for a general description of the types of cards.
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PCI cards contain configuration registers that define resource information to the system
during startup. PCI cards do not require manual system configuration when installing
the card. The system BIOS detects the board’s presence during startup and reads
information from the board’s configuration registers to assign the necessary system
resources.
NOTE All PCI expansion cards sold by Intergraph fully comply with the
Peripheral Component
Interconnect Specification, 2.1.
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Non-compliant PCI cards mechanically comply with the Peripheral Component
Interconnect Specification 2.1, but do not contain configuration registers that allow the
system to automatically assign the necessary resources. These cards install in PCI slots,
but you must configure the BIOS to assign system resources before installing the card.
In this regard, they are like ISA cards, as described below.
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ISA cards do not contain registers that define the resource information to the system
during startup. Therefore, you must configure the BIOS to define the card to the system
before installing the ISA card. This reserves system resources for the card.
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PnP cards are ISA cards that contain configuration registers like PCI cards. During
startup, the system BIOS automatically detects the installed card and assigns the
necessary system resources. Since a PnP card is ISA-based, you install it in the ISA slot.
NOTE Assign system resources for an ISA card and any non-compliant PCI cards before
installation. See the “Assigning System Resources” section below.
Each installed PCI card must draw less than 25 watts of power. The total allowable
maximum wattage for PCI cards is 175 watts. The PCI slots are limited to 25 watts power
dissipation per the Peripheral Component Interconnect Specification 2.1 .
Slot Locations
The expansion slots are located at the bottom left section of the system board, as shown in
the following figure. The bottom PCI slot shares space with the ISA slot. You can install a
card in the bottom PCI slot, or in the ISA slot, but not in both.
NOTE The shared PCI slot does not support bus-mastering PCI cards.
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