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Hardware Setup
PCI (Perpheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply wth PCI speccatons.
32-bt PCI Slot
Important
When addng or removng expanson cards, make sure that you unplug the power sup-
ply rst. Meanwhle, read the documentaton for the expanson card to congure any
necessary hardware or software settngs for the expanson card, such as jumpers,
swtches or BIOS conguraton.
PCI Interrupt Request Routng
IRQ, or nterrupt request lne, are hardware lnes over whch devces can send nterrupt
sgnals to the mcroprocessor. The PCI IRQ pns are typcally connected to the PCI bus
pns as follows:
Order1 Order2 Order3 Order4
PCI Slot1 INT A# INT B# INT C# INT D#
PCI Slot2 INT B# INT C# INT D# INT A#
PCI Slot3 INT C# INT D# INT A# INT B#