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PCI (Perpheral Component Interconnect) Slot
The PCI slot supports addtonal LAN, SCSI, USB, and other add-on cards that comply
wth PCI specficatons.
Important
When addng or removng expanson cards, always turn off the power supply and
unplug the power supply power cable from the power outlet. Read the expanson card's
documentaton to check for any necessary addtonal hardware or software changes.
PCI Interrupt Request Routng
IRQ, or nterrupt request lnes, are hardware lnes over whch devces can send nterrupt
requests to the processor. The PCI IRQ pns are typcally connected to the PCI bus pns
as followed:
PCI Slot1
PCI Slot2
PCI Slot3
Order1
Order2
Order3
INT A#
INT B#
INT C#
INT B#
INT C#
INT D#
INT C#
INT D#
INT A#
32-bt PCI Slot
Order4
INT D#
INT A#
INT B#
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